* GPL HEADER END
*/
/*
- * Copyright (c) 2013, 2014, Intel Corporation.
+ * Copyright (c) 2013, 2017, Intel Corporation.
*/
/*
* lustre/lfsck/lfsck_namespace.c
#define DEBUG_SUBSYSTEM S_LFSCK
-#include <lustre/lustre_idl.h>
#include <lu_object.h>
#include <dt_object.h>
#include <md_object.h>
#include <lustre_fid.h>
#include <lustre_lib.h>
#include <lustre_net.h>
-#include <lustre/lustre_user.h>
#include "lfsck_internal.h"
-#define LFSCK_NAMESPACE_MAGIC 0xA0629D03
+#define LFSCK_NAMESPACE_MAGIC_V1 0xA0629D03
+#define LFSCK_NAMESPACE_MAGIC_V2 0xA0621A0B
+#define LFSCK_NAMESPACE_MAGIC_V3 0xA06249FF
+
+/* For Lustre-2.x (x <= 6), the namespace LFSCK used LFSCK_NAMESPACE_MAGIC_V1
+ * as the trace file magic. When downgrade to such old release, the old LFSCK
+ * will not recognize the new LFSCK_NAMESPACE_MAGIC_V2 in the new trace file,
+ * then it will reset the whole LFSCK, and will not cause start failure. The
+ * similar case will happen when upgrade from such old release. */
+#define LFSCK_NAMESPACE_MAGIC LFSCK_NAMESPACE_MAGIC_V3
enum lfsck_nameentry_check {
LFSCK_NAMEENTRY_DEAD = 1, /* The object has been unlinked. */
LFSCK_NAMEENTRY_RECREATED = 3, /* The entry has been recreated. */
};
-static const char lfsck_namespace_name[] = "lfsck_namespace";
-
static struct lfsck_namespace_req *
lfsck_namespace_assistant_req_init(struct lfsck_instance *lfsck,
+ struct lfsck_assistant_object *lso,
struct lu_dirent *ent, __u16 type)
{
struct lfsck_namespace_req *lnr;
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&lnr->lnr_lar.lar_list);
- lnr->lnr_obj = lfsck_object_get(lfsck->li_obj_dir);
+ lnr->lnr_lar.lar_parent = lfsck_assistant_object_get(lso);
lnr->lnr_lmv = lfsck_lmv_get(lfsck->li_lmv);
lnr->lnr_fid = ent->lde_fid;
- lnr->lnr_oit_cookie = lfsck->li_pos_current.lp_oit_cookie;
lnr->lnr_dir_cookie = ent->lde_hash;
lnr->lnr_attr = ent->lde_attrs;
lnr->lnr_size = size;
if (lnr->lnr_lmv != NULL)
lfsck_lmv_put(env, lnr->lnr_lmv);
- lu_object_put(env, &lnr->lnr_obj->do_lu);
+ lfsck_assistant_object_put(env, lar->lar_parent);
OBD_FREE(lnr, lnr->lnr_size);
}
dst->ln_status = le32_to_cpu(src->ln_status);
dst->ln_flags = le32_to_cpu(src->ln_flags);
dst->ln_success_count = le32_to_cpu(src->ln_success_count);
- dst->ln_run_time_phase1 = le32_to_cpu(src->ln_run_time_phase1);
- dst->ln_run_time_phase2 = le32_to_cpu(src->ln_run_time_phase2);
+ dst->ln_run_time_phase1 = le64_to_cpu(src->ln_run_time_phase1);
+ dst->ln_run_time_phase2 = le64_to_cpu(src->ln_run_time_phase2);
dst->ln_time_last_complete = le64_to_cpu(src->ln_time_last_complete);
dst->ln_time_latest_start = le64_to_cpu(src->ln_time_latest_start);
dst->ln_time_last_checkpoint =
dst->ln_local_lpf_skipped = le64_to_cpu(src->ln_local_lpf_skipped);
dst->ln_local_lpf_failed = le64_to_cpu(src->ln_local_lpf_failed);
dst->ln_bitmap_size = le32_to_cpu(src->ln_bitmap_size);
+ dst->ln_time_latest_reset = le64_to_cpu(src->ln_time_latest_reset);
+ dst->ln_linkea_overflow_cleared =
+ le64_to_cpu(src->ln_linkea_overflow_cleared);
+ dst->ln_agent_entries_repaired =
+ le64_to_cpu(src->ln_agent_entries_repaired);
}
static void lfsck_namespace_cpu_to_le(struct lfsck_namespace *dst,
dst->ln_status = cpu_to_le32(src->ln_status);
dst->ln_flags = cpu_to_le32(src->ln_flags);
dst->ln_success_count = cpu_to_le32(src->ln_success_count);
- dst->ln_run_time_phase1 = cpu_to_le32(src->ln_run_time_phase1);
- dst->ln_run_time_phase2 = cpu_to_le32(src->ln_run_time_phase2);
+ dst->ln_run_time_phase1 = cpu_to_le64(src->ln_run_time_phase1);
+ dst->ln_run_time_phase2 = cpu_to_le64(src->ln_run_time_phase2);
dst->ln_time_last_complete = cpu_to_le64(src->ln_time_last_complete);
dst->ln_time_latest_start = cpu_to_le64(src->ln_time_latest_start);
dst->ln_time_last_checkpoint =
dst->ln_local_lpf_skipped = cpu_to_le64(src->ln_local_lpf_skipped);
dst->ln_local_lpf_failed = cpu_to_le64(src->ln_local_lpf_failed);
dst->ln_bitmap_size = cpu_to_le32(src->ln_bitmap_size);
+ dst->ln_time_latest_reset = cpu_to_le64(src->ln_time_latest_reset);
+ dst->ln_linkea_overflow_cleared =
+ cpu_to_le64(src->ln_linkea_overflow_cleared);
+ dst->ln_agent_entries_repaired =
+ cpu_to_le64(src->ln_agent_entries_repaired);
}
static void lfsck_namespace_record_failure(const struct lu_env *env,
ns->ln_pos_first_inconsistent = pos;
CDEBUG(D_LFSCK, "%s: namespace LFSCK hit first non-repaired "
- "inconsistency at the pos ["LPU64", "DFID", "LPX64"]\n",
+ "inconsistency at the pos [%llu, "DFID", %#llx]\n",
lfsck_lfsck2name(lfsck),
ns->ln_pos_first_inconsistent.lp_oit_cookie,
PFID(&ns->ln_pos_first_inconsistent.lp_dir_parent),
struct dt_object *obj = com->lc_obj;
struct lfsck_assistant_data *lad = com->lc_data;
struct lfsck_namespace *ns = com->lc_file_ram;
- cfs_bitmap_t *bitmap = lad->lad_bitmap;
+ struct cfs_bitmap *bitmap = lad->lad_bitmap;
ssize_t size;
__u32 nbits;
int rc;
if (nbits > bitmap->size) {
__u32 new_bits = bitmap->size;
- cfs_bitmap_t *new_bitmap;
+ struct cfs_bitmap *new_bitmap;
while (new_bits < nbits)
new_bits <<= 1;
}
if (ns->ln_bitmap_size == 0) {
- lad->lad_incomplete = 0;
+ clear_bit(LAD_INCOMPLETE, &lad->lad_flags);
CFS_RESET_BITMAP(bitmap);
RETURN(0);
size = (ns->ln_bitmap_size + 7) >> 3;
rc = dt_xattr_get(env, obj,
lfsck_buf_get(env, bitmap->data, size),
- XATTR_NAME_LFSCK_BITMAP, BYPASS_CAPA);
+ XATTR_NAME_LFSCK_BITMAP);
if (rc != size)
RETURN(rc >= 0 ? -EINVAL : rc);
if (cfs_bitmap_check_empty(bitmap))
- lad->lad_incomplete = 0;
+ clear_bit(LAD_INCOMPLETE, &lad->lad_flags);
else
- lad->lad_incomplete = 1;
+ set_bit(LAD_INCOMPLETE, &lad->lad_flags);
RETURN(0);
}
/**
* Load namespace LFSCK statistics information from the trace file.
*
- * For old release (Lustre-2.6 or older), the statistics information was
- * stored as XATTR_NAME_LFSCK_NAMESPACE_OLD EA. But in Lustre-2.7, we need
- * more statistics information. To avoid confusing old MDT when downgrade,
- * Lustre-2.7 stores the namespace LFSCK statistics information as new
- * XATTR_NAME_LFSCK_NAMESPACE EA.
- *
* \param[in] env pointer to the thread context
* \param[in] com pointer to the lfsck component
*
rc = dt_xattr_get(env, com->lc_obj,
lfsck_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE, BYPASS_CAPA);
+ XATTR_NAME_LFSCK_NAMESPACE);
if (rc == len) {
struct lfsck_namespace *ns = com->lc_file_ram;
lfsck_lfsck2name(com->lc_lfsck), len, rc);
if (rc >= 0)
rc = -ESTALE;
- } else {
- /* Check whether it is old trace file or not.
- * If yes, it should be reset via returning -ESTALE. */
- rc = dt_xattr_get(env, com->lc_obj,
- lfsck_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE_OLD, BYPASS_CAPA);
- if (rc >= 0)
- rc = -ESTALE;
}
return rc;
}
static int lfsck_namespace_store(const struct lu_env *env,
- struct lfsck_component *com, bool init)
+ struct lfsck_component *com)
{
struct dt_object *obj = com->lc_obj;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_assistant_data *lad = com->lc_data;
- cfs_bitmap_t *bitmap = NULL;
+ struct dt_device *dev = lfsck_obj2dev(obj);
+ struct cfs_bitmap *bitmap = NULL;
struct thandle *handle;
__u32 nbits = 0;
int len = com->lc_file_size;
int rc;
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
- struct lu_buf tbuf = { &len, sizeof(len) };
-#endif
ENTRY;
if (lad != NULL) {
ns->ln_bitmap_size = nbits;
lfsck_namespace_cpu_to_le((struct lfsck_namespace *)com->lc_file_disk,
ns);
- handle = dt_trans_create(env, lfsck->li_bottom);
+ handle = dt_trans_create(env, dev);
if (IS_ERR(handle))
GOTO(log, rc = PTR_ERR(handle));
GOTO(out, rc);
}
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
- /* To be compatible with old Lustre-2.x MDT (x <= 6), generate dummy
- * XATTR_NAME_LFSCK_NAMESPACE_OLD EA, then when downgrade to Lustre-2.x,
- * the old LFSCK will find "invalid" XATTR_NAME_LFSCK_NAMESPACE_OLD EA,
- * then reset the namespace LFSCK trace file. */
- if (init) {
- rc = dt_declare_xattr_set(env, obj, &tbuf,
- XATTR_NAME_LFSCK_NAMESPACE_OLD,
- LU_XATTR_CREATE, handle);
- if (rc != 0)
- GOTO(out, rc);
- }
-#endif
-
- rc = dt_trans_start_local(env, lfsck->li_bottom, handle);
+ rc = dt_trans_start_local(env, dev, handle);
if (rc != 0)
GOTO(out, rc);
rc = dt_xattr_set(env, obj,
lfsck_buf_get(env, com->lc_file_disk, len),
- XATTR_NAME_LFSCK_NAMESPACE, 0, handle, BYPASS_CAPA);
+ XATTR_NAME_LFSCK_NAMESPACE, 0, handle);
if (rc == 0 && bitmap != NULL)
rc = dt_xattr_set(env, obj,
lfsck_buf_get(env, bitmap->data, nbits >> 3),
- XATTR_NAME_LFSCK_BITMAP, 0, handle,
- BYPASS_CAPA);
-
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 8, 53, 0)
- if (rc == 0 && init)
- rc = dt_xattr_set(env, obj, &tbuf,
- XATTR_NAME_LFSCK_NAMESPACE_OLD,
- LU_XATTR_CREATE, handle, BYPASS_CAPA);
-#endif
+ XATTR_NAME_LFSCK_BITMAP, 0, handle);
GOTO(out, rc);
out:
- dt_trans_stop(env, lfsck->li_bottom, handle);
+ dt_trans_stop(env, dev, handle);
log:
if (rc != 0)
memset(ns, 0, sizeof(*ns));
ns->ln_magic = LFSCK_NAMESPACE_MAGIC;
ns->ln_status = LS_INIT;
+ ns->ln_time_latest_reset = ktime_get_real_seconds();
down_write(&com->lc_sem);
- rc = lfsck_namespace_store(env, com, true);
+ rc = lfsck_namespace_store(env, com);
+ if (rc == 0)
+ rc = lfsck_load_sub_trace_files(env, com,
+ &dt_lfsck_namespace_features, LFSCK_NAMESPACE, true);
up_write(&com->lc_sem);
+
return rc;
}
* trace file
* \param[in] add true if add new flags, otherwise remove flags
*
- * \retval 0 for succeed or nothing to be done
+ * \retval 0 for success or nothing to be done
* \retval negative error number on failure
*/
int lfsck_namespace_trace_update(const struct lu_env *env,
const __u8 flags, bool add)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_object *obj = com->lc_obj;
+ struct dt_object *obj;
struct lu_fid *key = &lfsck_env_info(env)->lti_fid3;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev;
struct thandle *th = NULL;
+ int idx;
int rc = 0;
__u8 old = 0;
__u8 new = 0;
LASSERT(flags != 0);
- down_write(&com->lc_sem);
+ if (unlikely(!fid_is_sane(fid)))
+ RETURN(0);
+
+ idx = lfsck_sub_trace_file_fid2idx(fid);
+ mutex_lock(&com->lc_sub_trace_objs[idx].lsto_mutex);
+ obj = com->lc_sub_trace_objs[idx].lsto_obj;
+ if (unlikely(obj == NULL)) {
+ mutex_unlock(&com->lc_sub_trace_objs[idx].lsto_mutex);
+ RETURN(0);
+ }
+
+ lfsck_object_get(obj);
+ dev = lfsck_obj2dev(obj);
fid_cpu_to_be(key, fid);
rc = dt_lookup(env, obj, (struct dt_rec *)&old,
- (const struct dt_key *)key, BYPASS_CAPA);
+ (const struct dt_key *)key);
if (rc == -ENOENT) {
if (!add)
GOTO(unlock, rc = 0);
GOTO(log, rc);
if (old != 0) {
- rc = dt_delete(env, obj, (const struct dt_key *)key,
- th, BYPASS_CAPA);
+ rc = dt_delete(env, obj, (const struct dt_key *)key, th);
if (rc != 0)
GOTO(log, rc);
}
if (new != 0) {
rc = dt_insert(env, obj, (const struct dt_rec *)&new,
- (const struct dt_key *)key, th, BYPASS_CAPA, 1);
+ (const struct dt_key *)key, th);
if (rc != 0)
GOTO(log, rc);
}
(__u32)flags, (__u32)old, (__u32)new, rc);
unlock:
- up_write(&com->lc_sem);
+ mutex_unlock(&com->lc_sub_trace_objs[idx].lsto_mutex);
+ lfsck_object_put(env, obj);
return rc;
}
RETURN(LFSCK_NAMEENTRY_DEAD);
rc = dt_lookup(env, dir, (struct dt_rec *)fid,
- (const struct dt_key *)name, BYPASS_CAPA);
+ (const struct dt_key *)name);
if (rc == -ENOENT)
RETURN(LFSCK_NAMEENTRY_REMOVED);
{
int rc;
+ /* For remote updating LINKEA, there may be further LFSCK action
+ * on remote MDT after the updating, so update the LINKEA ASAP. */
+ if (dt_object_remote(obj))
+ handle->th_sync = 1;
+
/* For destroying all invalid linkEA entries. */
rc = dt_declare_xattr_del(env, obj, XATTR_NAME_LINK, handle);
- if (rc != 0)
- return rc;
-
- /* For insert new linkEA entry. */
- rc = dt_declare_xattr_set(env, obj,
- lfsck_buf_get_const(env, NULL, DEFAULT_LINKEA_SIZE),
+ if (rc == 0)
+ /* For insert new linkEA entry. */
+ rc = dt_declare_xattr_set(env, obj,
+ lfsck_buf_get_const(env, NULL, MAX_LINKEA_SIZE),
XATTR_NAME_LINK, 0, handle);
return rc;
}
int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
- struct linkea_data *ldata)
+ struct linkea_data *ldata, bool with_rec)
{
int rc;
if (!dt_object_exists(obj))
return -ENOENT;
- rc = dt_xattr_get(env, obj, ldata->ld_buf, XATTR_NAME_LINK, BYPASS_CAPA);
+ rc = dt_xattr_get(env, obj, ldata->ld_buf, XATTR_NAME_LINK);
if (rc == -ERANGE) {
/* Buf was too small, figure out what we need. */
- rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LINK,
- BYPASS_CAPA);
- if (rc <= 0)
+ rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LINK);
+ if (unlikely(rc == 0))
+ return -ENODATA;
+
+ if (rc < 0)
return rc;
lu_buf_realloc(ldata->ld_buf, rc);
if (ldata->ld_buf->lb_buf == NULL)
return -ENOMEM;
- rc = dt_xattr_get(env, obj, ldata->ld_buf, XATTR_NAME_LINK,
- BYPASS_CAPA);
+ rc = dt_xattr_get(env, obj, ldata->ld_buf, XATTR_NAME_LINK);
}
- if (rc > 0)
- rc = linkea_init(ldata);
+ if (unlikely(rc == 0))
+ return -ENODATA;
+
+ if (rc > 0) {
+ if (with_rec)
+ rc = linkea_init_with_rec(ldata);
+ else
+ rc = linkea_init(ldata);
+ }
return rc;
}
struct dt_object *obj)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(obj);
struct thandle *th = NULL;
int rc = 0;
ENTRY;
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
GOTO(unlock, rc = 0);
- rc = dt_xattr_del(env, obj, XATTR_NAME_LINK, th, BYPASS_CAPA);
+ rc = dt_xattr_del(env, obj, XATTR_NAME_LINK, th);
GOTO(unlock, rc);
static int lfsck_links_write(const struct lu_env *env, struct dt_object *obj,
struct linkea_data *ldata, struct thandle *handle)
{
- const struct lu_buf *buf = lfsck_buf_get_const(env,
- ldata->ld_buf->lb_buf,
- ldata->ld_leh->leh_len);
+ struct lu_buf buf;
+ int rc;
+
+ lfsck_buf_init(&buf, ldata->ld_buf->lb_buf, ldata->ld_leh->leh_len);
+
+again:
+ rc = dt_xattr_set(env, obj, &buf, XATTR_NAME_LINK, 0, handle);
+ if (unlikely(rc == -ENOSPC)) {
+ rc = linkea_overflow_shrink(ldata);
+ if (likely(rc > 0)) {
+ buf.lb_len = rc;
+ goto again;
+ }
+ }
+
+ return rc;
+}
+
+static inline bool linkea_reclen_is_valid(const struct linkea_data *ldata)
+{
+ if (ldata->ld_reclen <= 0)
+ return false;
+
+ if ((char *)ldata->ld_lee + ldata->ld_reclen >
+ (char *)ldata->ld_leh + ldata->ld_leh->leh_len)
+ return false;
+
+ return true;
+}
+
+static inline bool linkea_entry_is_valid(const struct linkea_data *ldata,
+ const struct lu_name *cname,
+ const struct lu_fid *pfid)
+{
+ if (!linkea_reclen_is_valid(ldata))
+ return false;
- return dt_xattr_set(env, obj, buf, XATTR_NAME_LINK, 0, handle,
- BYPASS_CAPA);
+ if (cname->ln_namelen <= 0 || cname->ln_namelen > NAME_MAX)
+ return false;
+
+ if (!fid_is_sane(pfid))
+ return false;
+
+ return true;
}
-static void lfsck_namespace_unpack_linkea_entry(struct linkea_data *ldata,
- struct lu_name *cname,
- struct lu_fid *pfid,
- char *buf)
+static int lfsck_namespace_unpack_linkea_entry(struct linkea_data *ldata,
+ struct lu_name *cname,
+ struct lu_fid *pfid,
+ char *buf, const int buflen)
{
linkea_entry_unpack(ldata->ld_lee, &ldata->ld_reclen, cname, pfid);
+ if (unlikely(!linkea_entry_is_valid(ldata, cname, pfid)))
+ return -EINVAL;
+
/* To guarantee the 'name' is terminated with '0'. */
memcpy(buf, cname->ln_name, cname->ln_namelen);
buf[cname->ln_namelen] = 0;
cname->ln_name = buf;
+
+ return 0;
+}
+
+static void lfsck_linkea_del_buf(struct linkea_data *ldata,
+ const struct lu_name *lname)
+{
+ LASSERT(ldata->ld_leh != NULL && ldata->ld_lee != NULL);
+
+ /* If current record is corrupted, all the subsequent
+ * records will be dropped. */
+ if (unlikely(!linkea_reclen_is_valid(ldata))) {
+ void *ptr = ldata->ld_lee;
+
+ ldata->ld_leh->leh_len = sizeof(struct link_ea_header);
+ ldata->ld_leh->leh_reccount = 0;
+ linkea_first_entry(ldata);
+ while (ldata->ld_lee != NULL &&
+ (char *)ldata->ld_lee < (char *)ptr) {
+ int reclen = (ldata->ld_lee->lee_reclen[0] << 8) |
+ ldata->ld_lee->lee_reclen[1];
+
+ ldata->ld_leh->leh_len += reclen;
+ ldata->ld_leh->leh_reccount++;
+ ldata->ld_lee = (struct link_ea_entry *)
+ ((char *)ldata->ld_lee + reclen);
+ }
+
+ ldata->ld_lee = NULL;
+ } else {
+ linkea_del_buf(ldata, lname);
+ }
}
static int lfsck_namespace_filter_linkea_entry(struct linkea_data *ldata,
while (ldata->ld_lee != NULL) {
ldata->ld_reclen = (ldata->ld_lee->lee_reclen[0] << 8) |
ldata->ld_lee->lee_reclen[1];
- if (unlikely(ldata->ld_reclen == oldlen &&
+ if (unlikely(!linkea_reclen_is_valid(ldata))) {
+ lfsck_linkea_del_buf(ldata, NULL);
+ LASSERT(ldata->ld_lee == NULL);
+ } else if (unlikely(ldata->ld_reclen == oldlen &&
memcmp(ldata->ld_lee, oldlee, oldlen) == 0)) {
repeated++;
if (!remove)
break;
- linkea_del_buf(ldata, cname);
+ lfsck_linkea_del_buf(ldata, cname);
} else {
linkea_next_entry(ldata);
}
struct lfsck_thread_info *info = lfsck_env_info(env);
struct lu_name *cname = &info->lti_name;
struct dt_insert_rec *rec = &info->lti_dt_rec;
- struct lu_fid *tfid = &info->lti_fid5;
- struct lu_attr *la = &info->lti_la3;
+ struct lu_attr *la = &info->lti_la2;
const struct lu_fid *cfid = lfsck_dto2fid(orphan);
const struct lu_fid *pfid;
+ struct lu_fid tfid;
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(orphan);
struct dt_object *parent;
struct thandle *th = NULL;
- struct lustre_handle plh = { 0 };
+ struct lfsck_lock_handle *pllh = &info->lti_llh;
struct lustre_handle clh = { 0 };
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata2 = { NULL };
struct lu_buf linkea_buf;
int namelen;
int idx = 0;
ENTRY;
cname->ln_name = NULL;
- /* Create .lustre/lost+found/MDTxxxx when needed. */
- if (unlikely(lfsck->li_lpf_obj == NULL)) {
- rc = lfsck_create_lpf(env, lfsck);
- if (rc != 0)
- GOTO(log, rc);
- }
+ if (unlikely(lfsck->li_lpf_obj == NULL))
+ GOTO(log, rc = -ENXIO);
parent = lfsck->li_lpf_obj;
pfid = lfsck_dto2fid(parent);
- /* Hold update lock on the parent to prevent others to access. */
- rc = lfsck_ibits_lock(env, lfsck, parent, &plh,
- MDS_INODELOCK_UPDATE, LCK_EX);
- if (rc != 0)
- GOTO(log, rc);
-
+again:
do {
namelen = snprintf(info->lti_key, NAME_MAX, DFID"%s-%s-%d",
PFID(cfid), infix, type, idx++);
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)info->lti_key,
- BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)info->lti_key);
if (rc != 0 && rc != -ENOENT)
GOTO(log, rc);
- if (unlikely(rc == 0 && lu_fid_eq(cfid, tfid)))
+ if (unlikely(rc == 0 && lu_fid_eq(cfid, &tfid)))
exist = true;
} while (rc == 0 && !exist);
- cname->ln_name = info->lti_key;
- cname->ln_namelen = namelen;
- rc = linkea_data_new(&ldata, &info->lti_linkea_buf2);
+ rc = lfsck_lock(env, lfsck, parent, info->lti_key, pllh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
GOTO(log, rc);
- rc = linkea_add_buf(&ldata, cname, pfid);
+ /* Re-check whether the name conflict with othrs after taken
+ * the ldlm lock. */
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)info->lti_key);
+ if (rc == 0) {
+ if (!lu_fid_eq(cfid, &tfid)) {
+ exist = false;
+ lfsck_unlock(pllh);
+ goto again;
+ }
+
+ exist = true;
+ } else if (rc != -ENOENT) {
+ GOTO(log, rc);
+ } else {
+ exist = false;
+ }
+
+ cname->ln_name = info->lti_key;
+ cname->ln_namelen = namelen;
+ rc = linkea_links_new(&ldata2, &info->lti_linkea_buf2,
+ cname, pfid);
if (rc != 0)
GOTO(log, rc);
rc = lfsck_ibits_lock(env, lfsck, orphan, &clh,
- MDS_INODELOCK_UPDATE | MDS_INODELOCK_LOOKUP,
- LCK_EX);
+ MDS_INODELOCK_UPDATE | MDS_INODELOCK_LOOKUP |
+ MDS_INODELOCK_XATTR, LCK_EX);
if (rc != 0)
GOTO(log, rc);
- lfsck_buf_init(&linkea_buf, ldata.ld_buf->lb_buf,
- ldata.ld_leh->leh_len);
+ lfsck_buf_init(&linkea_buf, ldata2.ld_buf->lb_buf,
+ ldata2.ld_leh->leh_len);
th = dt_trans_create(env, dev);
if (IS_ERR(th))
GOTO(log, rc = PTR_ERR(th));
}
memset(la, 0, sizeof(*la));
- la->la_ctime = cfs_time_current_sec();
+ la->la_ctime = ktime_get_real_seconds();
la->la_valid = LA_CTIME;
rc = dt_declare_attr_set(env, orphan, la, th);
if (rc != 0)
GOTO(stop, rc);
dt_write_lock(env, orphan, 0);
- rc = lfsck_links_read(env, orphan, &ldata);
- if (likely((rc == -ENODATA) || (rc == -EINVAL) ||
- (rc == 0 && ldata.ld_leh->leh_reccount == 0))) {
+ rc = lfsck_links_read2_with_rec(env, orphan, &ldata2);
+ if (likely(rc == -ENODATA || rc == -EINVAL)) {
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
GOTO(unlock, rc = 1);
if (S_ISDIR(lfsck_object_type(orphan))) {
rc = dt_delete(env, orphan,
- (const struct dt_key *)dotdot, th,
- BYPASS_CAPA);
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(unlock, rc);
rec->rec_type = S_IFDIR;
rec->rec_fid = pfid;
rc = dt_insert(env, orphan, (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th,
- BYPASS_CAPA, 1);
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(unlock, rc);
}
rc = dt_xattr_set(env, orphan, &linkea_buf, XATTR_NAME_LINK, 0,
- th, BYPASS_CAPA);
+ th);
} else {
if (rc == 0 && count != NULL)
- *count = ldata.ld_leh->leh_reccount;
+ *count = ldata2.ld_leh->leh_reccount;
GOTO(unlock, rc);
}
rec->rec_type = lfsck_object_type(orphan) & S_IFMT;
rec->rec_fid = cfid;
rc = dt_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)cname->ln_name,
- th, BYPASS_CAPA, 1);
+ (const struct dt_key *)cname->ln_name, th);
if (rc == 0 && S_ISDIR(rec->rec_type)) {
dt_write_lock(env, parent, 0);
rc = dt_ref_add(env, parent, th);
}
if (rc == 0)
- rc = dt_attr_set(env, orphan, la, th, BYPASS_CAPA);
+ rc = dt_attr_set(env, orphan, la, th);
GOTO(stop, rc = (rc == 0 ? 1 : rc));
log:
lfsck_ibits_unlock(&clh, LCK_EX);
- lfsck_ibits_unlock(&plh, LCK_EX);
+ lfsck_unlock(pllh);
CDEBUG(D_LFSCK, "%s: namespace LFSCK insert orphan for the "
"object "DFID", name = %s: rc = %d\n",
lfsck_lfsck2name(lfsck), PFID(cfid),
return rc;
}
+static int lfsck_lmv_set(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *obj,
+ struct lmv_mds_md_v1 *lmv)
+{
+ struct dt_device *dev = lfsck->li_next;
+ struct thandle *th = NULL;
+ struct lu_buf buf = { lmv, sizeof(*lmv) };
+ int rc;
+
+ ENTRY;
+
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ rc = dt_declare_xattr_set(env, obj, &buf, XATTR_NAME_LMV".set", 0, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start_local(env, dev, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rc = dt_xattr_set(env, obj, &buf, XATTR_NAME_LMV".set", 0, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ EXIT;
+stop:
+ dt_trans_stop(env, dev, th);
+
+ return rc;
+}
+
+static int lfsck_lmv_delete(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *obj)
+{
+ struct dt_device *dev = lfsck->li_next;
+ struct thandle *th = NULL;
+ int rc;
+
+ ENTRY;
+
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ rc = dt_declare_xattr_del(env, obj, XATTR_NAME_LMV, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start_local(env, dev, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rc = dt_xattr_del(env, obj, XATTR_NAME_LMV, th);
+ if (rc)
+ GOTO(stop, rc);
+
+ EXIT;
+stop:
+ dt_trans_stop(env, dev, th);
+
+ return rc;
+}
+
+static inline int lfsck_object_is_shard(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *obj,
+ const struct lu_name *lname)
+{
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lmv_mds_md_v1 *lmv = &info->lti_lmv;
+ int rc;
+
+ rc = lfsck_shard_name_to_index(env, lname->ln_name, lname->ln_namelen,
+ lfsck_object_type(obj),
+ lfsck_dto2fid(obj));
+ if (rc < 0)
+ return 0;
+
+ rc = lfsck_read_stripe_lmv(env, lfsck, obj, lmv);
+ if (rc == -ENODATA)
+ return 0;
+
+ if (!rc && lmv->lmv_magic == LMV_MAGIC_STRIPE)
+ return 1;
+
+ return rc;
+}
+
/**
* Add the specified name entry back to namespace.
*
* it is quite possible that the name entry is lost. Then the LFSCK
* should add the name entry back to the namespace.
*
+ * If \a child is shard, which means \a parent is a striped directory,
+ * if \a parent has LMV, we need to delete it before insertion because
+ * now parent's striping is broken and can't be parsed correctly.
+ *
* \param[in] env pointer to the thread context
* \param[in] com pointer to the lfsck component
* \param[in] parent pointer to the directory under which the name entry
* will be inserted into
* \param[in] child pointer to the object referenced by the name entry
* that to be inserted into the parent
- * \param[in] name the name for the child in the parent directory
+ * \param[in] lname the name for the child in the parent directory
*
* \retval positive number for repaired cases
* \retval 0 if nothing to be repaired
struct lfsck_component *com,
struct dt_object *parent,
struct dt_object *child,
- const char *name)
+ const struct lu_name *lname)
{
- struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lu_attr *la = &info->lti_la;
- struct dt_insert_rec *rec = &info->lti_dt_rec;
- struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_next;
- struct thandle *th = NULL;
- struct lustre_handle lh = { 0 };
- int rc = 0;
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lu_attr *la = &info->lti_la;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ /* The child and its name may be on different MDTs. */
+ const struct lu_fid *pfid = lfsck_dto2fid(parent);
+ const struct lu_fid *cfid = lfsck_dto2fid(child);
+ struct dt_device *dev = lfsck->li_next;
+ struct thandle *th = NULL;
+ struct lfsck_lock_handle *llh = &info->lti_llh;
+ struct lmv_mds_md_v1 *lmv = &info->lti_lmv;
+ struct lu_buf buf = { lmv, sizeof(*lmv) };
+ /* whether parent's LMV is deleted before insertion */
+ bool parent_lmv_deleted = false;
+ /* whether parent's LMV is missing */
+ bool parent_lmv_lost = false;
+ int rc = 0;
+
ENTRY;
- if (unlikely(!dt_try_as_dir(env, parent)))
- GOTO(log, rc = -ENOTDIR);
+ /* @parent/@child may be based on lfsck->li_bottom,
+ * but here we need the object based on the lfsck->li_next. */
+
+ parent = lfsck_object_locate(dev, parent);
+ if (IS_ERR(parent))
+ GOTO(log, rc = PTR_ERR(parent));
+
+ child = lfsck_object_locate(dev, child);
+ if (IS_ERR(child))
+ GOTO(log, rc = PTR_ERR(child));
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
GOTO(log, rc = 1);
- /* Hold update lock on the parent to prevent others to access. */
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
- if (rc != 0)
+ rc = lfsck_lock(env, lfsck, parent, lname->ln_name, llh,
+ MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
+ MDS_INODELOCK_XATTR, LCK_EX);
+ if (rc)
GOTO(log, rc);
+ rc = lfsck_object_is_shard(env, lfsck, child, lname);
+ if (rc < 0)
+ GOTO(unlock, rc);
+
+ if (rc == 1) {
+ rc = lfsck_read_stripe_lmv(env, lfsck, parent, lmv);
+ if (!rc) {
+ /*
+ * To add a shard, we need to convert parent to a
+ * plain directory by deleting its LMV, and after
+ * insertion set it back.
+ */
+ rc = lfsck_lmv_delete(env, lfsck, parent);
+ if (rc)
+ GOTO(unlock, rc);
+ parent_lmv_deleted = true;
+ lmv->lmv_layout_version++;
+ lfsck_lmv_header_cpu_to_le(lmv, lmv);
+ } else if (rc == -ENODATA) {
+ struct lu_seq_range *range = &info->lti_range;
+ struct seq_server_site *ss = lfsck_dev_site(lfsck);
+
+ rc = lfsck_read_stripe_lmv(env, lfsck, child, lmv);
+ if (rc)
+ GOTO(unlock, rc);
+
+ fld_range_set_mdt(range);
+ rc = fld_server_lookup(env, ss->ss_server_fld,
+ fid_seq(lfsck_dto2fid(parent)), range);
+ if (rc)
+ GOTO(unlock, rc);
+
+ parent_lmv_lost = true;
+ lmv->lmv_magic = LMV_MAGIC;
+ lmv->lmv_master_mdt_index = range->lsr_index;
+ lmv->lmv_layout_version++;
+ lfsck_lmv_header_cpu_to_le(lmv, lmv);
+ } else {
+ GOTO(unlock, rc);
+ }
+ }
+
+ if (unlikely(!dt_try_as_dir(env, parent)))
+ GOTO(unlock, rc = -ENOTDIR);
+
th = dt_trans_create(env, dev);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
rec->rec_type = lfsck_object_type(child) & S_IFMT;
- rec->rec_fid = lfsck_dto2fid(child);
+ rec->rec_fid = cfid;
rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)name, th);
+ (const struct dt_key *)lname->ln_name, th);
if (rc != 0)
GOTO(stop, rc);
GOTO(stop, rc);
}
- memset(la, 0, sizeof(*la));
- la->la_ctime = cfs_time_current_sec();
+ if (parent_lmv_lost) {
+ rc = dt_declare_xattr_set(env, parent, &buf,
+ XATTR_NAME_LMV".set", 0, th);
+ if (rc)
+ GOTO(stop, rc);
+ }
+
+ la->la_ctime = ktime_get_real_seconds();
la->la_valid = LA_CTIME;
rc = dt_declare_attr_set(env, parent, la, th);
if (rc != 0)
GOTO(stop, rc);
rc = dt_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ (const struct dt_key *)lname->ln_name, th);
if (rc != 0)
GOTO(stop, rc);
GOTO(stop, rc);
}
- la->la_ctime = cfs_time_current_sec();
- rc = dt_attr_set(env, parent, la, th, BYPASS_CAPA);
+ if (parent_lmv_lost) {
+ rc = dt_xattr_set(env, parent, &buf, XATTR_NAME_LMV".set", 0,
+ th);
+ if (rc)
+ GOTO(stop, rc);
+ }
+
+ rc = dt_attr_set(env, parent, la, th);
if (rc != 0)
GOTO(stop, rc);
- rc = dt_attr_set(env, child, la, th, BYPASS_CAPA);
+ rc = dt_attr_set(env, child, la, th);
GOTO(stop, rc = (rc == 0 ? 1 : rc));
dt_trans_stop(env, dev, th);
unlock:
- lfsck_ibits_unlock(&lh, LCK_EX);
+ if (parent_lmv_deleted)
+ lfsck_lmv_set(env, lfsck, parent, lmv);
+
+ lfsck_unlock(llh);
log:
CDEBUG(D_LFSCK, "%s: namespace LFSCK insert object "DFID" with "
"the name %s and type %o to the parent "DFID": rc = %d\n",
- lfsck_lfsck2name(lfsck), PFID(lfsck_dto2fid(child)), name,
- lfsck_object_type(child) & S_IFMT,
- PFID(lfsck_dto2fid(parent)), rc);
+ lfsck_lfsck2name(lfsck), PFID(cfid), lname->ln_name,
+ lfsck_object_type(child) & S_IFMT, PFID(pfid), rc);
if (rc != 0) {
struct lfsck_namespace *ns = com->lc_file_ram;
}
/**
- * Create the specified orphan MDT-object on remote MDT.
+ * Create the specified orphan directory.
*
- * The LFSCK instance on this MDT will send LFSCK RPC to remote MDT to
- * ask the remote LFSCK instance to create the specified orphan object
- * under .lustre/lost+found/MDTxxxx/ directory with the name:
- * ${FID}-P-${conflict_version}.
+ * For the case that the parent MDT-object stored in some MDT-object's
+ * linkEA entry is lost, the LFSCK will re-create the parent object as
+ * an orphan and insert it into .lustre/lost+found/MDTxxxx/ directory
+ * with the name ${FID}-P-${conflict_version}.
*
* \param[in] env pointer to the thread context
* \param[in] com pointer to the lfsck component
- * \param[in] orphan pointer to the orphan MDT-object
- * \param[in] type the orphan's type to be created
- *
- * type "P": The orphan object to be created was a parent directory
- * of some MDT-object which linkEA shows that the @orphan
- * object is missing.
- *
- * \see lfsck_layout_recreate_parent() for more types.
- *
+ * \param[in] orphan pointer to the orphan MDT-object to be created
* \param[in] lmv pointer to master LMV EA that will be set to the orphan
*
* \retval positive number for repaired cases
- * \retval 0 if needs to repair nothing
* \retval negative error number on failure
*/
-static int lfsck_namespace_create_orphan_remote(const struct lu_env *env,
- struct lfsck_component *com,
- struct dt_object *orphan,
- __u32 type,
- struct lmv_mds_md_v1 *lmv)
+static int lfsck_namespace_create_orphan_dir(const struct lu_env *env,
+ struct lfsck_component *com,
+ struct dt_object *orphan,
+ struct lmv_mds_md_v1 *lmv)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lfsck_request *lr = &info->lti_lr;
- struct lu_seq_range *range = &info->lti_range;
- const struct lu_fid *fid = lfsck_dto2fid(orphan);
- struct lfsck_namespace *ns = com->lc_file_ram;
+ struct lu_attr *la = &info->lti_la;
+ struct dt_allocation_hint *hint = &info->lti_hint;
+ struct dt_object_format *dof = &info->lti_dof;
+ struct lu_name *cname = &info->lti_name2;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
+ struct lmv_mds_md_v1 *lmv2 = &info->lti_lmv2;
+ const struct lu_fid *cfid = lfsck_dto2fid(orphan);
+ struct lu_fid tfid;
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct seq_server_site *ss =
- lu_site2seq(lfsck->li_bottom->dd_lu_dev.ld_site);
- struct lfsck_tgt_desc *ltd = NULL;
- struct ptlrpc_request *req = NULL;
- int rc;
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ struct dt_device *dev = lfsck_obj2dev(orphan);
+ struct dt_object *parent = NULL;
+ struct thandle *th = NULL;
+ struct lfsck_lock_handle *llh = &info->lti_llh;
+ struct linkea_data ldata = { NULL };
+ struct lu_buf linkea_buf;
+ struct lu_buf lmv_buf;
+ char name[32];
+ int namelen;
+ int idx = 0;
+ int rc = 0;
+ int rc1 = 0;
ENTRY;
+ LASSERT(!dt_object_exists(orphan));
+
+ cname->ln_name = NULL;
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
- GOTO(out, rc = 1);
+ GOTO(log, rc = 1);
- fld_range_set_mdt(range);
- rc = fld_server_lookup(env, ss->ss_server_fld, fid_seq(fid), range);
- if (rc != 0)
- GOTO(out, rc);
+ if (dt_object_remote(orphan)) {
+ LASSERT(lfsck->li_lpf_root_obj != NULL);
- ltd = lfsck_tgt_get(&lfsck->li_mdt_descs, range->lsr_index);
- if (ltd == NULL) {
- ns->ln_flags |= LF_INCOMPLETE;
+ idx = lfsck_find_mdt_idx_by_fid(env, lfsck, cfid);
+ if (idx < 0)
+ GOTO(log, rc = idx);
- GOTO(out, rc = -ENODEV);
- }
+ snprintf(name, 8, "MDT%04x", idx);
+ rc = dt_lookup(env, lfsck->li_lpf_root_obj,
+ (struct dt_rec *)&tfid,
+ (const struct dt_key *)name);
+ if (rc != 0)
+ GOTO(log, rc = (rc == -ENOENT ? -ENXIO : rc));
- req = ptlrpc_request_alloc(class_exp2cliimp(ltd->ltd_exp),
- &RQF_LFSCK_NOTIFY);
- if (req == NULL)
- GOTO(out, rc = -ENOMEM);
+ parent = lfsck_object_find_bottom(env, lfsck, &tfid);
+ if (IS_ERR(parent))
+ GOTO(log, rc = PTR_ERR(parent));
- rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, LFSCK_NOTIFY);
- if (rc != 0) {
- ptlrpc_request_free(req);
-
- GOTO(out, rc);
- }
-
- lr = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
- memset(lr, 0, sizeof(*lr));
- lr->lr_event = LE_CREATE_ORPHAN;
- lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
- lr->lr_active = LFSCK_TYPE_NAMESPACE;
- lr->lr_fid = *fid;
- lr->lr_type = type;
- if (lmv != NULL) {
- lr->lr_hash_type = lmv->lmv_hash_type;
- lr->lr_stripe_count = lmv->lmv_stripe_count;
- lr->lr_layout_version = lmv->lmv_layout_version;
- memcpy(lr->lr_pool_name, lmv->lmv_pool_name,
- sizeof(lr->lr_pool_name));
- }
-
- ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
- ptlrpc_req_finished(req);
-
- if (rc == 0) {
- orphan->do_lu.lo_header->loh_attr |= LOHA_EXISTS;
- rc = 1;
- } else if (rc == -EEXIST) {
- orphan->do_lu.lo_header->loh_attr |= LOHA_EXISTS;
- rc = 0;
- }
-
- GOTO(out, rc);
-
-out:
- CDEBUG(D_LFSCK, "%s: namespace LFSCK create object "
- DFID" on the MDT %x remotely: rc = %d\n",
- lfsck_lfsck2name(lfsck), PFID(fid),
- ltd != NULL ? ltd->ltd_index : -1, rc);
-
- if (ltd != NULL)
- lfsck_tgt_put(ltd);
-
- return rc;
-}
-
-/**
- * Create the specified orphan MDT-object locally.
- *
- * For the case that the parent MDT-object stored in some MDT-object's
- * linkEA entry is lost, the LFSCK will re-create the parent object as
- * an orphan and insert it into .lustre/lost+found/MDTxxxx/ directory
- * with the name ${FID}-P-${conflict_version}.
- *
- * \param[in] env pointer to the thread context
- * \param[in] com pointer to the lfsck component
- * \param[in] orphan pointer to the orphan MDT-object to be created
- * \param[in] type the orphan's type to be created
- *
- * type "P": The orphan object to be created was a parent directory
- * of some MDT-object which linkEA shows that the @orphan
- * object is missing.
- *
- * \see lfsck_layout_recreate_parent() for more types.
- *
- * \param[in] lmv pointer to master LMV EA that will be set to the orphan
- *
- * \retval positive number for repaired cases
- * \retval negative error number on failure
- */
-static int lfsck_namespace_create_orphan_local(const struct lu_env *env,
- struct lfsck_component *com,
- struct dt_object *orphan,
- __u32 type,
- struct lmv_mds_md_v1 *lmv)
-{
- struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lu_attr *la = &info->lti_la;
- struct dt_allocation_hint *hint = &info->lti_hint;
- struct dt_object_format *dof = &info->lti_dof;
- struct lu_name *cname = &info->lti_name2;
- struct dt_insert_rec *rec = &info->lti_dt_rec;
- struct lu_fid *tfid = &info->lti_fid;
- struct lmv_mds_md_v1 *lmv2 = &info->lti_lmv2;
- const struct lu_fid *cfid = lfsck_dto2fid(orphan);
- const struct lu_fid *pfid;
- struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
- struct dt_object *parent = NULL;
- struct dt_object *child = NULL;
- struct thandle *th = NULL;
- struct lustre_handle lh = { 0 };
- struct linkea_data ldata = { 0 };
- struct lu_buf linkea_buf;
- struct lu_buf lmv_buf;
- char name[32];
- int namelen;
- int idx = 0;
- int rc = 0;
- ENTRY;
-
- LASSERT(!dt_object_exists(orphan));
- LASSERT(!dt_object_remote(orphan));
-
- /* @orphan maybe not attached to lfsck->li_bottom */
- child = lfsck_object_find_by_dev(env, dev, cfid);
- if (IS_ERR(child))
- GOTO(log, rc = PTR_ERR(child));
-
- cname->ln_name = NULL;
- if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
- GOTO(log, rc = 1);
+ if (unlikely(!dt_try_as_dir(env, parent)))
+ GOTO(log, rc = -ENOTDIR);
+ } else {
+ if (unlikely(lfsck->li_lpf_obj == NULL))
+ GOTO(log, rc = -ENXIO);
- /* Create .lustre/lost+found/MDTxxxx when needed. */
- if (unlikely(lfsck->li_lpf_obj == NULL)) {
- rc = lfsck_create_lpf(env, lfsck);
- if (rc != 0)
- GOTO(log, rc);
+ parent = lfsck->li_lpf_obj;
}
- parent = lfsck->li_lpf_obj;
- pfid = lfsck_dto2fid(parent);
+ dev = lfsck_find_dev_by_fid(env, lfsck, cfid);
+ if (IS_ERR(dev))
+ GOTO(log, rc = PTR_ERR(dev));
- /* Hold update lock on the parent to prevent others to access. */
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
- if (rc != 0)
- GOTO(log, rc);
+ idx = 0;
+again:
do {
namelen = snprintf(name, 31, DFID"-P-%d",
PFID(cfid), idx++);
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)name, BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)name);
if (rc != 0 && rc != -ENOENT)
- GOTO(unlock1, rc);
+ GOTO(log, rc);
} while (rc == 0);
+ rc = lfsck_lock(env, lfsck, parent, name, llh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
+ if (rc != 0)
+ GOTO(log, rc);
+
+ /* Re-check whether the name conflict with othrs after taken
+ * the ldlm lock. */
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)name);
+ if (unlikely(rc == 0)) {
+ lfsck_unlock(llh);
+ goto again;
+ }
+
+ if (rc != -ENOENT)
+ GOTO(unlock1, rc);
+
cname->ln_name = name;
cname->ln_namelen = namelen;
memset(la, 0, sizeof(*la));
- la->la_mode = type | (S_ISDIR(type) ? 0700 : 0600);
+ la->la_mode = S_IFDIR | 0700;
la->la_valid = LA_TYPE | LA_MODE | LA_UID | LA_GID |
LA_ATIME | LA_MTIME | LA_CTIME;
- child->do_ops->do_ah_init(env, hint, parent, child,
- la->la_mode & S_IFMT);
+ orphan->do_ops->do_ah_init(env, hint, parent, orphan,
+ la->la_mode & S_IFMT);
memset(dof, 0, sizeof(*dof));
- dof->dof_type = dt_mode_to_dft(type);
+ dof->dof_type = dt_mode_to_dft(S_IFDIR);
- rc = linkea_data_new(&ldata, &info->lti_linkea_buf2);
- if (rc != 0)
- GOTO(unlock1, rc);
-
- rc = linkea_add_buf(&ldata, cname, pfid);
+ rc = linkea_links_new(&ldata, &info->lti_linkea_buf2,
+ cname, lfsck_dto2fid(parent));
if (rc != 0)
GOTO(unlock1, rc);
if (IS_ERR(th))
GOTO(unlock1, rc = PTR_ERR(th));
- rc = dt_declare_create(env, child, la, hint, dof, th);
- if (rc == 0 && S_ISDIR(type))
- rc = dt_declare_ref_add(env, child, th);
+ /* Sync the remote transaction to guarantee that the subsequent
+ * lock against the @orphan can find the @orphan in time. */
+ if (dt_object_remote(orphan))
+ th->th_sync = 1;
+
+ rc = dt_declare_create(env, orphan, la, hint, dof, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ if (unlikely(!dt_try_as_dir(env, orphan)))
+ GOTO(stop, rc = -ENOTDIR);
+
+ rc = dt_declare_ref_add(env, orphan, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rec->rec_type = S_IFDIR;
+ rec->rec_fid = cfid;
+ rc = dt_declare_insert(env, orphan, (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+ rec->rec_fid = lfsck_dto2fid(parent);
+ rc = dt_declare_insert(env, orphan, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(stop, rc);
if (lmv != NULL) {
lmv->lmv_magic = LMV_MAGIC;
- lmv->lmv_master_mdt_index = lfsck_dev_idx(dev);
+ lmv->lmv_master_mdt_index = lfsck_dev_idx(lfsck);
lfsck_lmv_header_cpu_to_le(lmv2, lmv);
lfsck_buf_init(&lmv_buf, lmv2, sizeof(*lmv2));
- rc = dt_declare_xattr_set(env, child, &lmv_buf,
+ rc = dt_declare_xattr_set(env, orphan, &lmv_buf,
XATTR_NAME_LMV, 0, th);
if (rc != 0)
GOTO(stop, rc);
lfsck_buf_init(&linkea_buf, ldata.ld_buf->lb_buf,
ldata.ld_leh->leh_len);
- rc = dt_declare_xattr_set(env, child, &linkea_buf,
+ rc = dt_declare_xattr_set(env, orphan, &linkea_buf,
XATTR_NAME_LINK, 0, th);
if (rc != 0)
GOTO(stop, rc);
- rec->rec_type = type;
rec->rec_fid = cfid;
rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
(const struct dt_key *)name, th);
- if (rc == 0 && S_ISDIR(type))
+ if (rc == 0)
rc = dt_declare_ref_add(env, parent, th);
if (rc != 0)
if (rc != 0)
GOTO(stop, rc);
- dt_write_lock(env, child, 0);
- rc = dt_create(env, child, la, hint, dof, th);
+ dt_write_lock(env, orphan, 0);
+ rc = dt_create(env, orphan, la, hint, dof, th);
if (rc != 0)
GOTO(unlock2, rc);
- if (S_ISDIR(type)) {
- if (unlikely(!dt_try_as_dir(env, child)))
- GOTO(unlock2, rc = -ENOTDIR);
-
- rec->rec_type = S_IFDIR;
- rec->rec_fid = cfid;
- rc = dt_insert(env, child, (const struct dt_rec *)rec,
- (const struct dt_key *)dot, th, BYPASS_CAPA, 1);
- if (rc != 0)
- GOTO(unlock2, rc);
+ rc = dt_ref_add(env, orphan, th);
+ if (rc != 0)
+ GOTO(unlock2, rc);
- rec->rec_fid = pfid;
- rc = dt_insert(env, child, (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th,
- BYPASS_CAPA, 1);
- if (rc != 0)
- GOTO(unlock2, rc);
+ rec->rec_fid = cfid;
+ rc = dt_insert(env, orphan, (const struct dt_rec *)rec,
+ (const struct dt_key *)dot, th);
+ if (rc != 0)
+ GOTO(unlock2, rc);
- rc = dt_ref_add(env, child, th);
- if (rc != 0)
- GOTO(unlock2, rc);
- }
+ rec->rec_fid = lfsck_dto2fid(parent);
+ rc = dt_insert(env, orphan, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
+ if (rc != 0)
+ GOTO(unlock2, rc);
if (lmv != NULL) {
- rc = dt_xattr_set(env, child, &lmv_buf, XATTR_NAME_LMV, 0,
- th, BYPASS_CAPA);
+ rc = dt_xattr_set(env, orphan, &lmv_buf, XATTR_NAME_LMV, 0, th);
if (rc != 0)
GOTO(unlock2, rc);
}
- rc = dt_xattr_set(env, child, &linkea_buf,
- XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
- dt_write_unlock(env, child);
+ rc = dt_xattr_set(env, orphan, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ dt_write_unlock(env, orphan);
if (rc != 0)
GOTO(stop, rc);
- rec->rec_type = type;
rec->rec_fid = cfid;
rc = dt_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
- if (rc == 0 && S_ISDIR(type)) {
+ (const struct dt_key *)name, th);
+ if (rc == 0) {
dt_write_lock(env, parent, 0);
rc = dt_ref_add(env, parent, th);
dt_write_unlock(env, parent);
GOTO(stop, rc = (rc == 0 ? 1 : rc));
unlock2:
- dt_write_unlock(env, child);
+ dt_write_unlock(env, orphan);
stop:
- dt_trans_stop(env, dev, th);
+ rc1 = dt_trans_stop(env, dev, th);
+ if (rc1 != 0 && rc > 0)
+ rc = rc1;
unlock1:
- lfsck_ibits_unlock(&lh, LCK_EX);
+ lfsck_unlock(llh);
log:
- CDEBUG(D_LFSCK, "%s: namespace LFSCK create orphan locally for "
- "the object "DFID", name = %s, type %o: rc = %d\n",
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK create orphan dir for "
+ "the object "DFID", name = %s: rc = %d\n",
lfsck_lfsck2name(lfsck), PFID(cfid),
- cname->ln_name != NULL ? cname->ln_name : "<NULL>", type, rc);
-
- if (child != NULL && !IS_ERR(child))
- lfsck_object_put(env, child);
-
- return rc;
-}
-
-/**
- * Create the specified orphan MDT-object.
- *
- * For the case that the parent MDT-object stored in some MDT-object's
- * linkEA entry is lost, the LFSCK will re-create the parent object as
- * an orphan and insert it into .lustre/lost+found/MDTxxxx/ directory
- * with the name: ${FID}-P-${conflict_version}.
- *
- * \param[in] env pointer to the thread context
- * \param[in] com pointer to the lfsck component
- * \param[in] orphan pointer to the orphan MDT-object
- *
- * type "P": The orphan object to be created was a parent directory
- * of some MDT-object which linkEA shows that the @orphan
- * object is missing.
- *
- * \see lfsck_layout_recreate_parent() for more types.
- *
- * \param[in] lmv pointer to master LMV EA that will be set to the orphan
- *
- * \retval positive number for repaired cases
- * \retval 0 if needs to repair nothing
- * \retval negative error number on failure
- */
-static int lfsck_namespace_create_orphan(const struct lu_env *env,
- struct lfsck_component *com,
- struct dt_object *orphan,
- struct lmv_mds_md_v1 *lmv)
-{
- struct lfsck_namespace *ns = com->lc_file_ram;
- int rc;
+ cname->ln_name != NULL ? cname->ln_name : "<NULL>", rc);
- if (dt_object_remote(orphan))
- rc = lfsck_namespace_create_orphan_remote(env, com, orphan,
- S_IFDIR, lmv);
- else
- rc = lfsck_namespace_create_orphan_local(env, com, orphan,
- S_IFDIR, lmv);
+ if (parent != NULL && !IS_ERR(parent) && parent != lfsck->li_lpf_obj)
+ lfsck_object_put(env, parent);
if (rc != 0)
ns->ln_flags |= LF_INCONSISTENT;
bool next)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(obj);
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct thandle *th = NULL;
struct lustre_handle lh = { 0 };
- struct linkea_data ldata_new = { 0 };
+ struct linkea_data ldata_new = { NULL };
struct lu_buf linkea_buf;
+ int buflen = 0;
int rc = 0;
ENTRY;
rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
- MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_XATTR, LCK_EX);
+ MDS_INODELOCK_UPDATE | MDS_INODELOCK_XATTR,
+ LCK_EX);
if (rc != 0)
GOTO(log, rc);
if (next)
- linkea_del_buf(ldata, cname);
+ lfsck_linkea_del_buf(ldata, cname);
else
lfsck_namespace_filter_linkea_entry(ldata, cname, pfid,
true);
- lfsck_buf_init(&linkea_buf, ldata->ld_buf->lb_buf,
- ldata->ld_leh->leh_len);
+ if (ldata->ld_leh->leh_reccount > 0 ||
+ unlikely(ldata->ld_leh->leh_overflow_time)) {
+ lfsck_buf_init(&linkea_buf, ldata->ld_buf->lb_buf,
+ ldata->ld_leh->leh_len);
+ buflen = linkea_buf.lb_len;
+ }
again:
th = dt_trans_create(env, dev);
if (IS_ERR(th))
GOTO(unlock1, rc = PTR_ERR(th));
- rc = dt_declare_xattr_set(env, obj, &linkea_buf,
- XATTR_NAME_LINK, 0, th);
+ if (buflen != 0)
+ rc = dt_declare_xattr_set(env, obj, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ else
+ rc = dt_declare_xattr_del(env, obj, XATTR_NAME_LINK, th);
if (rc != 0)
GOTO(stop, rc);
if (unlikely(lfsck_is_dead_obj(obj)))
GOTO(unlock2, rc = -ENOENT);
- rc = lfsck_links_read2(env, obj, &ldata_new);
- if (rc != 0)
- GOTO(unlock2, rc);
+ rc = lfsck_links_read2_with_rec(env, obj, &ldata_new);
+ if (rc)
+ GOTO(unlock2, rc = (rc == -ENODATA ? 0 : rc));
/* The specified linkEA entry has been removed by race. */
rc = linkea_links_find(&ldata_new, cname, pfid);
GOTO(unlock2, rc = 1);
if (next)
- linkea_del_buf(&ldata_new, cname);
+ lfsck_linkea_del_buf(&ldata_new, cname);
else
lfsck_namespace_filter_linkea_entry(&ldata_new, cname, pfid,
true);
- if (linkea_buf.lb_len < ldata_new.ld_leh->leh_len) {
+ /*
+ * linkea may change because it doesn't take lock in the first read, if
+ * it becomes larger, restart from beginning.
+ */
+ if ((ldata_new.ld_leh->leh_reccount > 0 ||
+ unlikely(ldata_new.ld_leh->leh_overflow_time)) &&
+ buflen < ldata_new.ld_leh->leh_len) {
dt_write_unlock(env, obj);
dt_trans_stop(env, dev, th);
lfsck_buf_init(&linkea_buf, ldata_new.ld_buf->lb_buf,
ldata_new.ld_leh->leh_len);
+ buflen = linkea_buf.lb_len;
goto again;
}
- lfsck_buf_init(&linkea_buf, ldata_new.ld_buf->lb_buf,
- ldata_new.ld_leh->leh_len);
- rc = dt_xattr_set(env, obj, &linkea_buf,
- XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ if (buflen)
+ rc = lfsck_links_write(env, obj, &ldata_new, th);
+ else
+ rc = dt_xattr_del(env, obj, XATTR_NAME_LINK, th);
GOTO(unlock2, rc = (rc == 0 ? 1 : rc));
struct lu_name *cname,
struct lu_fid *pfid)
{
- struct lu_fid *cfid = &lfsck_env_info(env)->lti_fid3;
- struct lustre_handle lh = { 0 };
- int rc;
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lu_fid *cfid = &info->lti_fid3;
+ struct lfsck_lock_handle *llh = &info->lti_llh;
+ int rc;
ENTRY;
- rc = lfsck_ibits_lock(env, com->lc_lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
+ rc = lfsck_lock(env, com->lc_lfsck, parent, cname->ln_name, llh,
+ MDS_INODELOCK_UPDATE, LCK_PR);
if (rc != 0)
RETURN(rc);
dt_read_lock(env, parent, 0);
if (unlikely(lfsck_is_dead_obj(parent))) {
dt_read_unlock(env, parent);
- lfsck_ibits_unlock(&lh, LCK_EX);
+ lfsck_unlock(llh);
rc = lfsck_namespace_shrink_linkea(env, com, child, ldata,
cname, pfid, true);
}
rc = dt_lookup(env, parent, (struct dt_rec *)cfid,
- (const struct dt_key *)cname->ln_name,
- BYPASS_CAPA);
+ (const struct dt_key *)cname->ln_name);
dt_read_unlock(env, parent);
/* It is safe to release the ldlm lock, because when the logic come
* has removed the specified linkEA entry by race, then it is OK,
* because the subsequent lfsck_namespace_shrink_linkea() can handle
* such case. */
- lfsck_ibits_unlock(&lh, LCK_EX);
+ lfsck_unlock(llh);
if (rc == -ENOENT) {
rc = lfsck_namespace_shrink_linkea(env, com, child, ldata,
cname, pfid, true);
const struct lu_name *cname)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lu_fid *tfid = &info->lti_fid5;
struct lu_attr *la = &info->lti_la;
struct dt_insert_rec *rec = &info->lti_dt_rec;
+ struct lu_fid tfid;
struct lfsck_instance *lfsck = com->lc_lfsck;
+ /* The child and its name may be on different MDTs. */
struct dt_device *dev = lfsck->li_next;
const char *name = cname->ln_name;
- struct dt_object *obj = NULL;
- struct lustre_handle plh = { 0 };
+ const struct lu_fid *pfid = lfsck_dto2fid(parent);
+ struct dt_object *cobj = NULL;
+ struct lfsck_lock_handle *pllh = &info->lti_llh;
struct lustre_handle clh = { 0 };
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
struct thandle *th = NULL;
bool exist = true;
int rc = 0;
ENTRY;
- rc = lfsck_ibits_lock(env, lfsck, parent, &plh,
- MDS_INODELOCK_UPDATE, LCK_EX);
+ /* @parent/@child may be based on lfsck->li_bottom,
+ * but here we need the object based on the lfsck->li_next. */
+
+ parent = lfsck_object_locate(dev, parent);
+ if (IS_ERR(parent))
+ GOTO(log, rc = PTR_ERR(parent));
+
+ if (unlikely(!dt_try_as_dir(env, parent)))
+ GOTO(log, rc = -ENOTDIR);
+
+ rc = lfsck_lock(env, lfsck, parent, name, pllh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
GOTO(log, rc);
goto replace;
}
- obj = lfsck_object_find(env, lfsck, cfid);
- if (IS_ERR(obj)) {
- rc = PTR_ERR(obj);
+ cobj = lfsck_object_find_by_dev(env, dev, cfid);
+ if (IS_ERR(cobj)) {
+ rc = PTR_ERR(cobj);
if (rc == -ENOENT) {
exist = false;
goto replace;
GOTO(log, rc);
}
- if (!dt_object_exists(obj)) {
+ if (!dt_object_exists(cobj)) {
exist = false;
goto replace;
}
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)name, BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)name);
if (rc == -ENOENT) {
exist = false;
goto replace;
GOTO(log, rc);
/* Someone changed the name entry, cannot replace it. */
- if (!lu_fid_eq(cfid, tfid))
+ if (!lu_fid_eq(cfid, &tfid))
GOTO(log, rc = 0);
/* lock the object to be destroyed. */
- rc = lfsck_ibits_lock(env, lfsck, obj, &clh,
+ rc = lfsck_ibits_lock(env, lfsck, cobj, &clh,
MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_XATTR, LCK_EX);
+ MDS_INODELOCK_UPDATE | MDS_INODELOCK_XATTR,
+ LCK_EX);
if (rc != 0)
GOTO(log, rc);
- if (unlikely(lfsck_is_dead_obj(obj))) {
+ if (unlikely(lfsck_is_dead_obj(cobj))) {
exist = false;
goto replace;
}
- rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
+ rc = dt_attr_get(env, cobj, la);
if (rc != 0)
GOTO(log, rc);
GOTO(log, rc);
if (S_ISREG(la->la_mode)) {
- rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LOV,
- BYPASS_CAPA);
+ rc = dt_xattr_get(env, cobj, &LU_BUF_NULL, XATTR_NAME_LOV);
/* If someone has created related OST-object(s),
* then keep it. */
if ((rc > 0) || (rc < 0 && rc != -ENODATA))
replace:
dt_read_lock(env, child, 0);
- rc = lfsck_links_read2(env, child, &ldata);
+ rc = lfsck_links_read2_with_rec(env, child, &ldata);
dt_read_unlock(env, child);
/* Someone changed the child, no need to replace. */
if (rc != 0)
GOTO(log, rc);
- rc = linkea_links_find(&ldata, cname, lfsck_dto2fid(parent));
+ rc = linkea_links_find(&ldata, cname, pfid);
/* Someone moved the child, no need to replace. */
if (rc != 0)
GOTO(log, rc = 0);
GOTO(log, rc = PTR_ERR(th));
if (exist) {
- rc = dt_declare_destroy(env, obj, th);
+ rc = dt_declare_destroy(env, cobj, th);
if (rc != 0)
GOTO(stop, rc);
}
if (rc != 0)
GOTO(stop, rc);
- rc = dt_trans_start(env, dev, th);
+ rc = dt_trans_start_local(env, dev, th);
if (rc != 0)
GOTO(stop, rc);
if (exist) {
- rc = dt_destroy(env, obj, th);
+ rc = dt_destroy(env, cobj, th);
if (rc != 0)
GOTO(stop, rc);
}
/* The old name entry maybe not exist. */
- dt_delete(env, parent, (const struct dt_key *)name, th,
- BYPASS_CAPA);
+ rc = dt_delete(env, parent, (const struct dt_key *)name, th);
+ if (rc != 0 && rc != -ENOENT)
+ GOTO(stop, rc);
rc = dt_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ (const struct dt_key *)name, th);
GOTO(stop, rc = (rc == 0 ? 1 : rc));
log:
lfsck_ibits_unlock(&clh, LCK_EX);
- lfsck_ibits_unlock(&plh, LCK_EX);
- if (obj != NULL && !IS_ERR(obj))
- lfsck_object_put(env, obj);
+ lfsck_unlock(pllh);
+
+ if (cobj != NULL && !IS_ERR(cobj))
+ lfsck_object_put(env, cobj);
CDEBUG(D_LFSCK, "%s: namespace LFSCK conditionally destroy the "
"object "DFID" because of conflict with the object "DFID
" under the parent "DFID" with name %s: rc = %d\n",
lfsck_lfsck2name(lfsck), PFID(cfid),
- PFID(lfsck_dto2fid(child)), PFID(lfsck_dto2fid(parent)),
- name, rc);
+ PFID(lfsck_dto2fid(child)), PFID(pfid), name, rc);
return rc;
}
struct linkea_data *ldata)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(obj);
struct thandle *th = NULL;
struct lu_buf linkea_buf;
int rc = 0;
GOTO(unlock, rc = 1);
rc = dt_xattr_set(env, obj, &linkea_buf,
- XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ XATTR_NAME_LINK, 0, th);
GOTO(unlock, rc = (rc == 0 ? 1 : rc));
{
struct lfsck_thread_info *info = lfsck_env_info(env);
struct dt_insert_rec *rec = &info->lti_dt_rec;
- const struct lu_fid *cfid = lfsck_dto2fid(child);
- struct lu_fid *tfid = &info->lti_fid5;
+ const struct lu_fid *pfid = lfsck_dto2fid(parent);
+ struct lu_fid cfid = {0};
+ struct lu_fid tfid;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct dt_device *dev = lfsck->li_next;
struct thandle *th = NULL;
+ struct lfsck_lock_handle *llh = &info->lti_llh;
struct lustre_handle lh = { 0 };
int rc = 0;
ENTRY;
+ if (child)
+ cfid = *lfsck_dto2fid(child);
+ parent = lfsck_object_locate(dev, parent);
+ if (IS_ERR(parent))
+ GOTO(log, rc = PTR_ERR(parent));
+
if (unlikely(!dt_try_as_dir(env, parent)))
GOTO(log, rc = -ENOTDIR);
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
+ if (!update || strcmp(name, name2) == 0)
+ rc = lfsck_lock(env, lfsck, parent, name, llh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
+ else
+ rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
GOTO(log, rc);
if (update) {
rec->rec_type = lfsck_object_type(child) & S_IFMT;
- rec->rec_fid = cfid;
+ LASSERT(!fid_is_zero(&cfid));
+ rec->rec_fid = &cfid;
rc = dt_declare_insert(env, parent,
(const struct dt_rec *)rec,
(const struct dt_key *)name2, th);
GOTO(stop, rc);
}
- if (dec) {
+ if (dec && S_ISDIR(type)) {
rc = dt_declare_ref_del(env, parent, th);
if (rc != 0)
GOTO(stop, rc);
}
- rc = dt_trans_start(env, dev, th);
+ rc = dt_trans_start_local(env, dev, th);
if (rc != 0)
GOTO(stop, rc);
+
dt_write_lock(env, parent, 0);
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)name, BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)name);
/* Someone has removed the bad name entry by race. */
if (rc == -ENOENT)
GOTO(unlock2, rc = 0);
/* Someone has removed the bad name entry and reused it for other
* object by race. */
- if (!lu_fid_eq(tfid, cfid))
+ if (!lu_fid_eq(&tfid, &cfid))
GOTO(unlock2, rc = 0);
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
GOTO(unlock2, rc = 1);
- rc = dt_delete(env, parent, (const struct dt_key *)name, th,
- BYPASS_CAPA);
+ rc = dt_delete(env, parent, (const struct dt_key *)name, th);
if (rc != 0)
GOTO(unlock2, rc);
if (update) {
rc = dt_insert(env, parent,
(const struct dt_rec *)rec,
- (const struct dt_key *)name2, th,
- BYPASS_CAPA, 1);
+ (const struct dt_key *)name2, th);
if (rc != 0)
GOTO(unlock2, rc);
}
- if (dec) {
+ if (dec && S_ISDIR(type)) {
rc = dt_ref_del(env, parent, th);
if (rc != 0)
GOTO(unlock2, rc);
/* We are not sure whether the child will become orphan or not.
* Record it in the LFSCK trace file for further checking in
* the second-stage scanning. */
- if (!update && !dec && rc == 0)
- lfsck_namespace_trace_update(env, com, cfid,
+ if (!update && !dec && child && rc == 0)
+ lfsck_namespace_trace_update(env, com, &cfid,
LNTF_CHECK_LINKEA, true);
unlock1:
- lfsck_ibits_unlock(&lh, LCK_EX);
+ /* It is harmless even if unlock the unused lock_handle */
+ lfsck_ibits_unlock(&lh, LCK_PW);
+ lfsck_unlock(llh);
log:
CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant found bad name "
"entry for: parent "DFID", child "DFID", name %s, type "
"in name entry %o, type claimed by child %o. repair it "
- "by %s with new name2 %s: rc = %d\n", lfsck_lfsck2name(lfsck),
- PFID(lfsck_dto2fid(parent)), PFID(lfsck_dto2fid(child)),
+ "by %s with new name2 %s: rc = %d\n",
+ lfsck_lfsck2name(lfsck), PFID(pfid), PFID(&cfid),
name, type, update ? lfsck_object_type(child) : 0,
update ? "updating" : "removing", name2, rc);
struct lfsck_thread_info *info = lfsck_env_info(env);
struct dt_insert_rec *rec = &info->lti_dt_rec;
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(obj);
struct thandle *th = NULL;
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
struct lu_buf linkea_buf;
int rc = 0;
ENTRY;
LASSERT(!dt_object_remote(obj));
LASSERT(S_ISDIR(lfsck_object_type(obj)));
- rc = linkea_data_new(&ldata, &info->lti_big_buf);
- if (rc != 0)
- GOTO(log, rc);
-
- rc = linkea_add_buf(&ldata, cname, pfid);
+ rc = linkea_links_new(&ldata, &info->lti_big_buf, cname, pfid);
if (rc != 0)
GOTO(log, rc);
GOTO(unlock, rc = 1);
/* The old ".." name entry maybe not exist. */
- dt_delete(env, obj, (const struct dt_key *)dotdot, th,
- BYPASS_CAPA);
+ dt_delete(env, obj, (const struct dt_key *)dotdot, th);
rc = dt_insert(env, obj, (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th, BYPASS_CAPA, 1);
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(unlock, rc);
- rc = dt_xattr_set(env, obj, &linkea_buf,
- XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ rc = lfsck_links_write(env, obj, &ldata, th);
GOTO(unlock, rc = (rc == 0 ? 1 : rc));
* \param[out] type to tell the caller what the inconsistency is
* \param[in] retry if found inconsistency, but the caller does not hold
* ldlm lock on the @child, then set @retry as true
+ * \param[in] unknown set if does not know how to repair the inconsistency
*
* \retval positive number for repaired cases
* \retval 0 if nothing to be repaired
struct linkea_data *ldata,
struct lustre_handle *lh,
enum lfsck_namespace_inconsistency_type *type,
- bool *retry)
+ bool *retry, bool *unknown)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
struct lu_name *cname = &info->lti_name;
const struct lu_fid *cfid = lfsck_dto2fid(child);
- struct lu_fid *tfid = &info->lti_fid3;
+ struct lu_fid tfid;
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct dt_object *parent = NULL;
int rc = 0;
ENTRY;
- lfsck_namespace_unpack_linkea_entry(ldata, cname, tfid, info->lti_key);
+ rc = lfsck_namespace_unpack_linkea_entry(ldata, cname, &tfid,
+ info->lti_key,
+ sizeof(info->lti_key));
/* The unique linkEA entry with bad parent will be handled as orphan. */
- if (!fid_is_sane(tfid)) {
+ if (rc != 0) {
if (!lustre_handle_is_used(lh) && retry != NULL)
*retry = true;
else
GOTO(out, rc);
}
- parent = lfsck_object_find_bottom(env, lfsck, tfid);
+ parent = lfsck_object_find_bottom(env, lfsck, &tfid);
if (IS_ERR(parent))
GOTO(out, rc = PTR_ERR(parent));
lost_parent:
lmv = &info->lti_lmv;
- rc = lfsck_read_stripe_lmv(env, child, lmv);
+ rc = lfsck_read_stripe_lmv(env, lfsck, child, lmv);
if (rc != 0 && rc != -ENODATA)
GOTO(out, rc);
/* It is an invalid name entry, we
* cannot trust the parent also. */
rc = lfsck_namespace_shrink_linkea(env, com, child,
- ldata, cname, tfid, true);
+ ldata, cname, &tfid, true);
if (rc < 0)
GOTO(out, rc);
}
/* Create the lost parent as an orphan. */
- rc = lfsck_namespace_create_orphan(env, com, parent, lmv);
+ rc = lfsck_namespace_create_orphan_dir(env, com, parent, lmv);
if (rc >= 0) {
/* Add the missing name entry to the parent. */
rc = lfsck_namespace_insert_normal(env, com, parent,
- child, cname->ln_name);
+ child, cname);
if (unlikely(rc == -EEXIST)) {
/* Unfortunately, someone reused the name
* under the parent by race. So we have
* current system to be consistent. */
rc = lfsck_namespace_shrink_linkea(env,
com, child, ldata,
- cname, tfid, true);
+ cname, &tfid, true);
if (rc >= 0) {
snprintf(info->lti_tmpbuf,
sizeof(info->lti_tmpbuf),
}
GOTO(out, rc);
- }
+ } /* !dt_object_exists(parent) */
/* The unique linkEA entry with bad parent will be handled as orphan. */
if (unlikely(!dt_try_as_dir(env, parent))) {
GOTO(out, rc);
}
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)cname->ln_name, BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)cname->ln_name);
if (rc == -ENOENT) {
/* If the LFSCK is marked as LF_INCOMPLETE, then means some MDT
* has ever tried to verify some remote MDT-object that resides
}
lfsck_ibits_unlock(lh, LCK_EX);
- rc = lfsck_namespace_check_name(env, parent, child, cname);
+ rc = lfsck_namespace_check_name(env, lfsck, parent, child,
+ cname);
if (rc == -ENOENT)
goto lost_parent;
/* It is an invalid name entry, drop it. */
if (unlikely(rc > 0)) {
rc = lfsck_namespace_shrink_linkea(env, com, child,
- ldata, cname, tfid, true);
+ ldata, cname, &tfid, true);
if (rc >= 0) {
snprintf(info->lti_tmpbuf,
sizeof(info->lti_tmpbuf),
/* Add the missing name entry back to the namespace. */
rc = lfsck_namespace_insert_normal(env, com, parent, child,
- cname->ln_name);
+ cname);
if (unlikely(rc == -ESTALE))
/* It may happen when the remote object has been
* removed, but the local MDT is not aware of that. */
* internal status of create operation. Under such
* case, nothing to be done. */
rc = lfsck_namespace_shrink_linkea_cond(env, com,
- parent, child, ldata, cname, tfid);
+ parent, child, ldata, cname, &tfid);
if (rc >= 0) {
snprintf(info->lti_tmpbuf,
sizeof(info->lti_tmpbuf),
}
GOTO(out, rc);
- }
+ } /* rc == -ENOENT */
if (rc != 0)
GOTO(out, rc);
- if (!lu_fid_eq(tfid, cfid)) {
+ if (!lu_fid_eq(&tfid, cfid)) {
if (!lustre_handle_is_used(lh) && retry != NULL) {
*retry = true;
* may be created by the LFSCK for repairing dangling
* name entry. Try to replace it. */
rc = lfsck_namespace_replace_cond(env, com, parent, child,
- tfid, cname);
+ &tfid, cname);
if (rc == 0)
rc = lfsck_namespace_dsd_orphan(env, com, child,
pfid, lh, type);
GOTO(out, rc);
}
- if (fid_is_zero(pfid))
+ /* Zero FID may because the remote directroy object has invalid linkEA,
+ * or lost linkEA. Under such case, the LFSCK on this MDT does not know
+ * how to repair the inconsistency, but the namespace LFSCK on the MDT
+ * where its name entry resides may has more information (name, FID) to
+ * repair such inconsistency. So here, keep the inconsistency to avoid
+ * some imporper repairing. */
+ if (fid_is_zero(pfid)) {
+ if (unknown)
+ *unknown = true;
+
GOTO(out, rc = 0);
+ }
/* The ".." name entry is wrong, update it. */
if (!lu_fid_eq(pfid, lfsck_dto2fid(parent))) {
* \param[in,out] lh ldlm lock handler for the given @child
* \param[out] type to tell the caller what the inconsistency is
* \param[in] lpf true if the ".." entry is under lost+found/MDTxxxx/
+ * \param[in] unknown set if does not know how to repair the inconsistency
*
* \retval positive number for repaired cases
* \retval 0 if nothing to be repaired
struct linkea_data *ldata,
struct lustre_handle *lh,
enum lfsck_namespace_inconsistency_type *type,
- bool lpf)
+ bool lpf, bool *unknown)
{
struct lfsck_thread_info *info = lfsck_env_info(env);
struct lu_name *cname = &info->lti_name;
const struct lu_fid *cfid = lfsck_dto2fid(child);
- struct lu_fid *tfid = &info->lti_fid3;
- struct lu_fid *pfid2 = &info->lti_fid4;
+ struct lu_fid *pfid2 = &info->lti_fid3;
+ struct lu_fid tfid;
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct dt_object *parent = NULL;
- struct linkea_data ldata_new = { 0 };
+ struct linkea_data ldata_new = { NULL };
int dirent_count = 0;
- int linkea_count = 0;
int rc = 0;
bool once = true;
ENTRY;
again:
while (ldata->ld_lee != NULL) {
- lfsck_namespace_unpack_linkea_entry(ldata, cname, tfid,
- info->lti_key);
- /* Drop repeated linkEA entries. */
- lfsck_namespace_filter_linkea_entry(ldata, cname, tfid, true);
+ rc = lfsck_namespace_unpack_linkea_entry(ldata, cname, &tfid,
+ info->lti_key,
+ sizeof(info->lti_key));
/* Drop invalid linkEA entry. */
- if (!fid_is_sane(tfid)) {
- linkea_del_buf(ldata, cname);
- linkea_count++;
+ if (rc != 0) {
+ lfsck_linkea_del_buf(ldata, cname);
continue;
}
+ /* Drop repeated linkEA entries. */
+ lfsck_namespace_filter_linkea_entry(ldata, cname, &tfid, true);
+
/* If current dotdot is the .lustre/lost+found/MDTxxxx/,
* then it is possible that: the directry object has ever
* been lost, but its name entry was there. In the former
* When the LFSCK runs again, if the dangling name is still
* there, the LFSCK should move the orphan directory object
* back to the normal namespace. */
- if (!lpf && !lu_fid_eq(pfid, tfid) && once) {
+ if (!lpf && !fid_is_zero(pfid) &&
+ !lu_fid_eq(pfid, &tfid) && once) {
linkea_next_entry(ldata);
continue;
}
- parent = lfsck_object_find_bottom(env, lfsck, tfid);
+ parent = lfsck_object_find_bottom(env, lfsck, &tfid);
if (IS_ERR(parent))
RETURN(PTR_ERR(parent));
* there is still other chance to make the
* child to be visible via other parent, then
* remove this linkEA entry. */
- linkea_del_buf(ldata, cname);
- linkea_count++;
+ lfsck_linkea_del_buf(ldata, cname);
continue;
}
/* The linkEA entry with bad parent will be removed. */
if (unlikely(!dt_try_as_dir(env, parent))) {
lfsck_object_put(env, parent);
- linkea_del_buf(ldata, cname);
- linkea_count++;
+ lfsck_linkea_del_buf(ldata, cname);
continue;
}
- rc = dt_lookup(env, parent, (struct dt_rec *)tfid,
- (const struct dt_key *)cname->ln_name,
- BYPASS_CAPA);
+ rc = dt_lookup(env, parent, (struct dt_rec *)&tfid,
+ (const struct dt_key *)cname->ln_name);
*pfid2 = *lfsck_dto2fid(parent);
if (rc == -ENOENT) {
lfsck_object_put(env, parent);
RETURN(rc);
}
- if (lu_fid_eq(tfid, cfid)) {
+ if (lu_fid_eq(&tfid, cfid)) {
lfsck_object_put(env, parent);
- if (!lu_fid_eq(pfid, pfid2)) {
+ /* If the parent (that is declared via linkEA entry)
+ * directory contains the specified child, but such
+ * parent does not match the dotdot name entry, then
+ * trust the linkEA. */
+ if (!fid_is_zero(pfid) && !lu_fid_eq(pfid, pfid2)) {
*type = LNIT_UNMATCHED_PAIRS;
rc = lfsck_namespace_repair_unmatched_pairs(env,
com, child, pfid2, cname);
/* It is the most common case that we find the
* name entry corresponding to the linkEA entry
* that matches the ".." name entry. */
- rc = linkea_data_new(&ldata_new, &info->lti_big_buf);
- if (rc != 0)
- RETURN(rc);
-
- rc = linkea_add_buf(&ldata_new, cname, pfid2);
+ rc = linkea_links_new(&ldata_new, &info->lti_big_buf,
+ cname, pfid2);
if (rc != 0)
RETURN(rc);
if (rc < 0)
RETURN(rc);
- linkea_del_buf(ldata, cname);
- linkea_count++;
+ lfsck_linkea_del_buf(ldata, cname);
linkea_first_entry(ldata);
/* There may be some invalid dangling name entries under
* other parent directories, remove all of them. */
while (ldata->ld_lee != NULL) {
- lfsck_namespace_unpack_linkea_entry(ldata,
- cname, tfid, info->lti_key);
- if (!fid_is_sane(tfid))
+ rc = lfsck_namespace_unpack_linkea_entry(ldata,
+ cname, &tfid, info->lti_key,
+ sizeof(info->lti_key));
+ if (rc != 0)
goto next;
parent = lfsck_object_find_bottom(env, lfsck,
- tfid);
+ &tfid);
if (IS_ERR(parent)) {
rc = PTR_ERR(parent);
if (rc != -ENOENT &&
dirent_count += rc;
next:
- linkea_del_buf(ldata, cname);
+ lfsck_linkea_del_buf(ldata, cname);
}
ns->ln_dirent_repaired += dirent_count;
RETURN(rc);
- }
+ } /* lu_fid_eq(&tfid, lfsck_dto2fid(child)) */
lfsck_ibits_unlock(lh, LCK_EX);
/* The name entry references another MDT-object that may be
* created by the LFSCK for repairing dangling name entry.
* Try to replace it. */
rc = lfsck_namespace_replace_cond(env, com, parent, child,
- tfid, cname);
+ &tfid, cname);
lfsck_object_put(env, parent);
if (rc < 0)
RETURN(rc);
if (rc > 0)
goto rebuild;
- linkea_del_buf(ldata, cname);
- }
+ lfsck_linkea_del_buf(ldata, cname);
+ } /* while (ldata->ld_lee != NULL) */
+
+ /* If there is still linkEA overflow, return. */
+ if (unlikely(ldata->ld_leh->leh_overflow_time))
+ RETURN(0);
linkea_first_entry(ldata);
if (ldata->ld_leh->leh_reccount == 1) {
rc = lfsck_namespace_dsd_single(env, com, child, pfid, ldata,
- lh, type, NULL);
-
- if (rc == 0 && fid_is_zero(pfid) && linkea_count > 0)
- rc = lfsck_namespace_rebuild_linkea(env, com, child,
- ldata);
+ lh, type, NULL, unknown);
RETURN(rc);
}
*
* If all the known name entries have been verified, then the object's hard
* link attribute should match the object's linkEA entries count unless the
- * object's has too much hard link to be recorded in the linkEA. Such cases
+ * object's has too many hard link to be recorded in the linkEA. Such cases
* should have been marked in the LFSCK trace file. Otherwise, trust the
* linkEA to update the object's nlink attribute.
*
struct dt_object *obj,
struct lu_attr *la)
{
- struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lu_fid *tfid = &info->lti_fid3;
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_device *dev = lfsck->li_bottom;
+ struct dt_device *dev = lfsck_obj2dev(obj);
const struct lu_fid *cfid = lfsck_dto2fid(obj);
- struct dt_object *child = NULL;
struct thandle *th = NULL;
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
struct lustre_handle lh = { 0 };
__u32 old = la->la_nlink;
int rc = 0;
- __u8 flags;
ENTRY;
LASSERT(!dt_object_remote(obj));
- LASSERT(S_ISREG(lfsck_object_type(obj)));
-
- child = lfsck_object_find_by_dev(env, dev, cfid);
- if (IS_ERR(child))
- GOTO(log, rc = PTR_ERR(child));
- rc = lfsck_ibits_lock(env, lfsck, child, &lh,
- MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_XATTR, LCK_EX);
+ rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
GOTO(log, rc);
GOTO(log, rc = PTR_ERR(th));
la->la_valid = LA_NLINK;
- rc = dt_declare_attr_set(env, child, la, th);
+ rc = dt_declare_attr_set(env, obj, la, th);
if (rc != 0)
GOTO(stop, rc);
if (rc != 0)
GOTO(stop, rc);
- dt_write_lock(env, child, 0);
+ dt_write_lock(env, obj, 0);
/* If the LFSCK is marked as LF_INCOMPLETE, then means some MDT has
* ever tried to verify some remote MDT-object that resides on this
* MDT, but this MDT failed to respond such request. So means there
if (ns->ln_flags & LF_INCOMPLETE)
GOTO(unlock, rc = 0);
- fid_cpu_to_be(tfid, cfid);
- rc = dt_lookup(env, com->lc_obj, (struct dt_rec *)&flags,
- (const struct dt_key *)tfid, BYPASS_CAPA);
- if (rc != 0)
- GOTO(unlock, rc);
-
- if (flags & LNTF_SKIP_NLINK)
- GOTO(unlock, rc = 0);
-
- rc = dt_attr_get(env, child, la, BYPASS_CAPA);
+ rc = dt_attr_get(env, obj, la);
if (rc != 0)
GOTO(unlock, rc = (rc == -ENOENT ? 0 : rc));
- rc = lfsck_links_read2(env, child, &ldata);
- if (rc != 0)
+ rc = lfsck_links_read2_with_rec(env, obj, &ldata);
+ if (rc)
GOTO(unlock, rc = (rc == -ENODATA ? 0 : rc));
- if (la->la_nlink == ldata.ld_leh->leh_reccount ||
- unlikely(la->la_nlink == 0))
+ /* XXX: Currently, we only update the nlink attribute if the known
+ * linkEA entries is larger than the nlink attribute. That is
+ * safe action. */
+ if (la->la_nlink >= ldata.ld_leh->leh_reccount ||
+ unlikely(la->la_nlink == 0 ||
+ ldata.ld_leh->leh_overflow_time))
GOTO(unlock, rc = 0);
la->la_nlink = ldata.ld_leh->leh_reccount;
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
GOTO(unlock, rc = 1);
- rc = dt_attr_set(env, child, la, th, BYPASS_CAPA);
+ rc = dt_attr_set(env, obj, la, th);
GOTO(unlock, rc = (rc == 0 ? 1 : rc));
unlock:
- dt_write_unlock(env, child);
+ dt_write_unlock(env, obj);
stop:
dt_trans_stop(env, dev, th);
log:
- lfsck_ibits_unlock(&lh, LCK_EX);
- if (child != NULL && !IS_ERR(child))
- lfsck_object_put(env, child);
-
+ lfsck_ibits_unlock(&lh, LCK_PW);
CDEBUG(D_LFSCK, "%s: namespace LFSCK repaired the object "DFID"'s "
"nlink count from %u to %u: rc = %d\n",
lfsck_lfsck2name(lfsck), PFID(cfid), old, la->la_nlink, rc);
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lustre_handle lh = { 0 };
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
bool unknown = false;
bool lpf = false;
bool retry = false;
}
rc = dt_lookup(env, child, (struct dt_rec *)pfid,
- (const struct dt_key *)dotdot, BYPASS_CAPA);
+ (const struct dt_key *)dotdot);
if (rc != 0) {
if (rc != -ENOENT && rc != -ENODATA && rc != -EINVAL) {
dt_read_unlock(env, child);
}
GOTO(out, rc);
- }
+ } /* rc != 0 */
linkea_first_entry(&ldata);
/* This is the most common case: the object has unique linkEA entry. */
if (ldata.ld_leh->leh_reccount == 1) {
rc = lfsck_namespace_dsd_single(env, com, child, pfid, &ldata,
- &lh, &type, &retry);
+ &lh, &type, &retry, &unknown);
if (retry) {
LASSERT(!lustre_handle_is_used(&lh));
* but the LFSCK cannot aware that at that time, then it adds
* the bad linkEA entry for further processing. */
rc = lfsck_namespace_dsd_multiple(env, com, child, pfid, &ldata,
- &lh, &type, lpf);
+ &lh, &type, lpf, &unknown);
GOTO(out, rc);
return rc;
}
+static inline bool
+lfsck_namespace_linkea_stale_overflow(struct linkea_data *ldata,
+ struct lfsck_namespace *ns)
+{
+ /* Both the leh_overflow_time and ln_time_latest_reset are
+ * local time based, so need NOT to care about clock drift
+ * among the servers. */
+ return ldata->ld_leh->leh_overflow_time &&
+ ldata->ld_leh->leh_overflow_time < ns->ln_time_latest_reset;
+}
+
+/**
+ * Clear the object's linkEA overflow timestamp.
+ *
+ * If the MDT-object has too many hard links as to the linkEA cannot hold
+ * all of them, then overflow timestamp will be set in the linkEA header.
+ * If some hard links are removed after that, then it is possible to hold
+ * other missed linkEA entries. If the namespace LFSCK have added all the
+ * related linkEA entries, then it will remove the overflow timestamp.
+ *
+ * \param[in] env pointer to the thread context
+ * \param[in] com pointer to the lfsck component
+ * \param[in] ldata pointer to the linkEA data for the given @obj
+ * \param[in] obj pointer to the dt_object to be handled
+ *
+ * \retval positive number for repaired cases
+ * \retval 0 if nothing to be repaired
+ * \retval negative error number on failure
+ */
+static int lfsck_namespace_linkea_clear_overflow(const struct lu_env *env,
+ struct lfsck_component *com,
+ struct linkea_data *ldata,
+ struct dt_object *obj)
+{
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct dt_device *dev = lfsck_obj2dev(obj);
+ struct thandle *th = NULL;
+ struct lustre_handle lh = { 0 };
+ struct lu_buf linkea_buf;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(!dt_object_remote(obj));
+
+ rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
+ if (rc != 0)
+ GOTO(log, rc);
+
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ GOTO(log, rc = PTR_ERR(th));
+
+ rc = dt_declare_xattr_set(env, obj,
+ lfsck_buf_get_const(env, NULL, MAX_LINKEA_SIZE),
+ XATTR_NAME_LINK, 0, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start_local(env, dev, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ dt_write_lock(env, obj, 0);
+ rc = lfsck_links_read(env, obj, ldata);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ if (unlikely(!lfsck_namespace_linkea_stale_overflow(ldata, ns)))
+ GOTO(unlock, rc = 0);
+
+ ldata->ld_leh->leh_overflow_time = 0;
+ if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
+ GOTO(unlock, rc = 1);
+
+ /* If all known entries are in the linkEA, then the 'leh_reccount'
+ * should NOT be zero. */
+ LASSERT(ldata->ld_leh->leh_reccount > 0);
+
+ lfsck_buf_init(&linkea_buf, ldata->ld_buf->lb_buf,
+ ldata->ld_leh->leh_len);
+ rc = dt_xattr_set(env, obj, &linkea_buf, XATTR_NAME_LINK, 0, th);
+ if (unlikely(rc == -ENOSPC))
+ rc = 0;
+ else if (!rc)
+ rc = 1;
+
+ GOTO(unlock, rc);
+
+unlock:
+ dt_write_unlock(env, obj);
+
+stop:
+ dt_trans_stop(env, dev, th);
+
+log:
+ lfsck_ibits_unlock(&lh, LCK_PW);
+ CDEBUG(D_LFSCK, "%s: clear linkea overflow timestamp for the object "
+ DFID": rc = %d\n",
+ lfsck_lfsck2name(lfsck), PFID(lfsck_dto2fid(obj)), rc);
+
+ return rc;
+}
+
+/**
+ * Verify the object's agent entry.
+ *
+ * If the object claims to have agent entry but the linkEA does not contain
+ * remote parent, then remove the agent entry. Otherwise, if the object has
+ * no agent entry but its linkEA contains remote parent, then will generate
+ * agent entry for it.
+ *
+ * \param[in] env pointer to the thread context
+ * \param[in] com pointer to the lfsck component
+ * \param[in] obj pointer to the dt_object to be handled
+ *
+ * \retval positive number for repaired cases
+ * \retval 0 if nothing to be repaired
+ * \retval negative error number on failure
+ */
+static int lfsck_namespace_check_agent_entry(const struct lu_env *env,
+ struct lfsck_component *com,
+ struct dt_object *obj)
+{
+ struct linkea_data ldata = { NULL };
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct lu_fid *pfid = &info->lti_fid2;
+ struct lu_name *cname = &info->lti_name;
+ struct lu_seq_range *range = &info->lti_range;
+ struct seq_server_site *ss = lfsck_dev_site(lfsck);
+ __u32 idx = lfsck_dev_idx(lfsck);
+ int rc;
+ bool remote = false;
+ ENTRY;
+
+ if (!(lfsck->li_bookmark_ram.lb_param & LPF_ALL_TGT))
+ RETURN(0);
+
+ rc = lfsck_links_read_with_rec(env, obj, &ldata);
+ if (rc == -ENOENT || rc == -ENODATA)
+ RETURN(0);
+
+ if (rc && rc != -EINVAL)
+ GOTO(out, rc);
+
+ /* We check the agent entry again after verifying the linkEA
+ * successfully. So invalid linkEA should be dryrun mode. */
+ if (rc == -EINVAL || unlikely(!ldata.ld_leh->leh_reccount))
+ RETURN(0);
+
+ linkea_first_entry(&ldata);
+ while (ldata.ld_lee != NULL && !remote) {
+ linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
+ cname, pfid);
+ if (!linkea_entry_is_valid(&ldata, cname, pfid))
+ GOTO(out, rc = 0);
+
+ fld_range_set_mdt(range);
+ rc = fld_server_lookup(env, ss->ss_server_fld,
+ fid_seq(pfid), range);
+ if (rc)
+ GOTO(out, rc = (rc == -ENOENT ? 0 : rc));
+
+ if (range->lsr_index != idx)
+ remote = true;
+ else
+ linkea_next_entry(&ldata);
+ }
+
+ if ((lu_object_has_agent_entry(&obj->do_lu) && !remote) ||
+ (!lu_object_has_agent_entry(&obj->do_lu) && remote)) {
+ struct dt_device *dev = lfsck_obj2dev(obj);
+ struct linkea_data ldata2 = { NULL };
+ struct lustre_handle lh = { 0 };
+ struct lu_buf linkea_buf;
+ struct thandle *handle;
+
+ if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
+ GOTO(out, rc = 1);
+
+ rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
+ MDS_INODELOCK_UPDATE |
+ MDS_INODELOCK_XATTR, LCK_EX);
+ if (rc)
+ GOTO(out, rc);
+
+ handle = dt_trans_create(env, dev);
+ if (IS_ERR(handle))
+ GOTO(unlock, rc = PTR_ERR(handle));
+
+ lfsck_buf_init(&linkea_buf, ldata.ld_buf->lb_buf,
+ ldata.ld_leh->leh_len);
+ rc = dt_declare_xattr_set(env, obj, &linkea_buf,
+ XATTR_NAME_LINK, LU_XATTR_REPLACE, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start_local(env, dev, handle);
+ if (rc)
+ GOTO(stop, rc);
+
+ dt_write_lock(env, obj, 0);
+ rc = lfsck_links_read2_with_rec(env, obj, &ldata2);
+ if (rc) {
+ if (rc == -ENOENT || rc == -ENODATA)
+ rc = 0;
+ GOTO(unlock2, rc);
+ }
+
+ /* If someone changed linkEA by race, then the agent
+ * entry will be updated by lower layer automatically. */
+ if (ldata.ld_leh->leh_len != ldata2.ld_leh->leh_len ||
+ memcmp(ldata.ld_buf->lb_buf, ldata2.ld_buf->lb_buf,
+ ldata.ld_leh->leh_len) != 0)
+ GOTO(unlock2, rc = 0);
+
+ rc = dt_xattr_set(env, obj, &linkea_buf, XATTR_NAME_LINK,
+ LU_XATTR_REPLACE, handle);
+ if (!rc)
+ rc = 1;
+
+ GOTO(unlock2, rc);
+
+unlock2:
+ dt_write_unlock(env, obj);
+stop:
+ dt_trans_stop(env, dev, handle);
+unlock:
+ lfsck_ibits_unlock(&lh, LCK_EX);
+ }
+
+ GOTO(out, rc);
+
+out:
+ if (rc > 0)
+ ns->ln_agent_entries_repaired++;
+ if (rc)
+ CDEBUG(D_LFSCK, "%s: repair agent entry for "DFID": rc = %d\n",
+ lfsck_lfsck2name(lfsck), PFID(lfsck_dto2fid(obj)), rc);
+ return rc;
+}
+
/**
* Double scan the MDT-object for namespace LFSCK.
*
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_namespace *ns = com->lc_file_ram;
struct dt_object *parent = NULL;
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
bool repaired = false;
int count = 0;
int rc;
if (S_ISDIR(lfsck_object_type(child))) {
dt_read_unlock(env, child);
rc = lfsck_namespace_double_scan_dir(env, com, child, flags);
+ if (!rc && flags & LNTF_CHECK_AGENT_ENTRY)
+ rc = lfsck_namespace_check_agent_entry(env, com, child);
RETURN(rc);
}
rc = lfsck_links_read(env, child, &ldata);
dt_read_unlock(env, child);
+
+ if (rc == -EINVAL) {
+ struct lustre_handle lh = { 0 };
+
+ rc = lfsck_ibits_lock(env, com->lc_lfsck, child, &lh,
+ MDS_INODELOCK_UPDATE |
+ MDS_INODELOCK_XATTR, LCK_EX);
+ if (rc == 0) {
+ rc = lfsck_namespace_links_remove(env, com, child);
+ lfsck_ibits_unlock(&lh, LCK_EX);
+ }
+
+ GOTO(out, rc);
+ }
+
if (rc != 0)
GOTO(out, rc);
+ if (!(ns->ln_flags & LF_INCOMPLETE) &&
+ unlikely(lfsck_namespace_linkea_stale_overflow(&ldata, ns))) {
+ rc = lfsck_namespace_linkea_clear_overflow(env, com, &ldata,
+ child);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (rc > 0)
+ ns->ln_linkea_overflow_cleared++;
+ }
+
linkea_first_entry(&ldata);
while (ldata.ld_lee != NULL) {
- lfsck_namespace_unpack_linkea_entry(&ldata, cname, pfid,
- info->lti_key);
+ rc = lfsck_namespace_unpack_linkea_entry(&ldata, cname, pfid,
+ info->lti_key,
+ sizeof(info->lti_key));
+ /* Invalid PFID in the linkEA entry. */
+ if (rc != 0) {
+ rc = lfsck_namespace_shrink_linkea(env, com, child,
+ &ldata, cname, pfid, true);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (rc > 0)
+ repaired = true;
+
+ continue;
+ }
+
rc = lfsck_namespace_filter_linkea_entry(&ldata, cname, pfid,
false);
/* Found repeated linkEA entries */
/* fall through */
}
- /* Invalid PFID in the linkEA entry. */
- if (!fid_is_sane(pfid)) {
- rc = lfsck_namespace_shrink_linkea(env, com, child,
- &ldata, cname, pfid, true);
- if (rc < 0)
- GOTO(out, rc);
-
- if (rc > 0)
- repaired = true;
-
- continue;
- }
-
parent = lfsck_object_find_bottom(env, lfsck, pfid);
if (IS_ERR(parent))
GOTO(out, rc = PTR_ERR(parent));
}
/* Create the lost parent as an orphan. */
- rc = lfsck_namespace_create_orphan(env, com,
+ rc = lfsck_namespace_create_orphan_dir(env, com,
parent, NULL);
if (rc < 0) {
lfsck_object_put(env, parent);
/* Add the missing name entry to the parent. */
rc = lfsck_namespace_insert_normal(env, com,
- parent, child, cname->ln_name);
+ parent, child, cname);
if (unlikely(rc == -EEXIST))
/* Unfortunately, someone reused the
* name under the parent by race. So we
repaired = true;
continue;
- }
+ } /* !dt_object_exists(parent) */
/* The linkEA entry with bad parent will be removed. */
if (unlikely(!dt_try_as_dir(env, parent))) {
}
rc = dt_lookup(env, parent, (struct dt_rec *)cfid,
- (const struct dt_key *)cname->ln_name,
- BYPASS_CAPA);
+ (const struct dt_key *)cname->ln_name);
if (rc != 0 && rc != -ENOENT) {
lfsck_object_put(env, parent);
continue;
}
- rc = dt_attr_get(env, child, la, BYPASS_CAPA);
+ /* The following handles -ENOENT case */
+
+ rc = dt_attr_get(env, child, la);
if (rc != 0)
GOTO(out, rc);
/* If there is no name entry in the parent dir and the object
- * link count is less than the linkea entries count, then the
+ * link count is fewer than the linkea entries count, then the
* linkea entry should be removed. */
if (ldata.ld_leh->leh_reccount > la->la_nlink) {
rc = lfsck_namespace_shrink_linkea_cond(env, com,
GOTO(out, rc = 0);
}
- rc = lfsck_namespace_check_name(env, parent, child, cname);
+ rc = lfsck_namespace_check_name(env, lfsck, parent, child,
+ cname);
if (rc == -ENOENT)
goto lost_parent;
/* Add the missing name entry back to the namespace. */
rc = lfsck_namespace_insert_normal(env, com, parent, child,
- cname->ln_name);
+ cname);
if (unlikely(rc == -ESTALE))
/* It may happen when the remote object has been
* removed, but the local MDT is not aware of that. */
if (rc < 0 && rc != -ENODATA)
return rc;
- if (rc == 0) {
- LASSERT(ldata.ld_leh != NULL);
-
+ if (rc == 0 && ldata.ld_leh != NULL)
count = ldata.ld_leh->leh_reccount;
- }
if (count == 0) {
/* If the LFSCK is marked as LF_INCOMPLETE, then means some
* other MDT that references this object with another name,
* so we cannot know whether this linkEA is valid or not.
* So keep it there and maybe resolved when next LFSCK run. */
- if (!(ns->ln_flags & LF_INCOMPLETE)) {
+ if (!(ns->ln_flags & LF_INCOMPLETE) &&
+ (ldata.ld_leh == NULL ||
+ !ldata.ld_leh->leh_overflow_time)) {
/* If the child becomes orphan, then insert it into
* the global .lustre/lost+found/MDTxxxx directory. */
rc = lfsck_namespace_insert_orphan(env, com, child,
}
}
} else {
- rc = dt_attr_get(env, child, la, BYPASS_CAPA);
+ rc = dt_attr_get(env, child, la);
if (rc != 0)
return rc;
if (la->la_nlink != 0 && la->la_nlink != count) {
- rc = lfsck_namespace_repair_nlink(env, com, child, la);
- if (rc > 0) {
- ns->ln_objs_nlink_repaired++;
- rc = 0;
+ if (unlikely(!S_ISREG(lfsck_object_type(child)) &&
+ !S_ISLNK(lfsck_object_type(child)))) {
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK finds "
+ "the object "DFID"'s nlink count %d "
+ "does not match linkEA count %d, "
+ "type %o, skip it.\n",
+ lfsck_lfsck2name(lfsck),
+ PFID(lfsck_dto2fid(child)),
+ la->la_nlink, count,
+ lfsck_object_type(child));
+ } else if (la->la_nlink < count &&
+ likely(!ldata.ld_leh->leh_overflow_time)) {
+ rc = lfsck_namespace_repair_nlink(env, com,
+ child, la);
+ if (rc > 0) {
+ ns->ln_objs_nlink_repaired++;
+ rc = 0;
+ }
}
}
}
rc = 1;
}
+ if (!rc && flags & LNTF_CHECK_AGENT_ENTRY)
+ rc = lfsck_namespace_check_agent_entry(env, com, child);
+
return rc;
}
struct lfsck_namespace *ns,
__u64 checked_phase1,
__u64 checked_phase2,
- __u32 time_phase1,
- __u32 time_phase2)
+ time64_t time_phase1,
+ time64_t time_phase2, bool dryrun)
{
- seq_printf(m, "checked_phase1: "LPU64"\n"
- "checked_phase2: "LPU64"\n"
- "updated_phase1: "LPU64"\n"
- "updated_phase2: "LPU64"\n"
- "failed_phase1: "LPU64"\n"
- "failed_phase2: "LPU64"\n"
- "directories: "LPU64"\n"
- "dirent_repaired: "LPU64"\n"
- "linkea_repaired: "LPU64"\n"
- "nlinks_repaired: "LPU64"\n"
- "multiple_linked_checked: "LPU64"\n"
- "multiple_linked_repaired: "LPU64"\n"
- "unknown_inconsistency: "LPU64"\n"
- "unmatched_pairs_repaired: "LPU64"\n"
- "dangling_repaired: "LPU64"\n"
- "multiple_referenced_repaired: "LPU64"\n"
- "bad_file_type_repaired: "LPU64"\n"
- "lost_dirent_repaired: "LPU64"\n"
- "local_lost_found_scanned: "LPU64"\n"
- "local_lost_found_moved: "LPU64"\n"
- "local_lost_found_skipped: "LPU64"\n"
- "local_lost_found_failed: "LPU64"\n"
- "striped_dirs_scanned: "LPU64"\n"
- "striped_dirs_repaired: "LPU64"\n"
- "striped_dirs_failed: "LPU64"\n"
- "striped_dirs_disabled: "LPU64"\n"
- "striped_dirs_skipped: "LPU64"\n"
- "striped_shards_scanned: "LPU64"\n"
- "striped_shards_repaired: "LPU64"\n"
- "striped_shards_failed: "LPU64"\n"
- "striped_shards_skipped: "LPU64"\n"
- "name_hash_repaired: "LPU64"\n"
- "success_count: %u\n"
- "run_time_phase1: %u seconds\n"
- "run_time_phase2: %u seconds\n",
- checked_phase1,
- checked_phase2,
- ns->ln_items_repaired,
- ns->ln_objs_repaired_phase2,
- ns->ln_items_failed,
- ns->ln_objs_failed_phase2,
- ns->ln_dirs_checked,
- ns->ln_dirent_repaired,
- ns->ln_linkea_repaired,
- ns->ln_objs_nlink_repaired,
- ns->ln_mul_linked_checked,
- ns->ln_mul_linked_repaired,
- ns->ln_unknown_inconsistency,
- ns->ln_unmatched_pairs_repaired,
- ns->ln_dangling_repaired,
- ns->ln_mul_ref_repaired,
- ns->ln_bad_type_repaired,
- ns->ln_lost_dirent_repaired,
- ns->ln_local_lpf_scanned,
- ns->ln_local_lpf_moved,
- ns->ln_local_lpf_skipped,
- ns->ln_local_lpf_failed,
- ns->ln_striped_dirs_scanned,
- ns->ln_striped_dirs_repaired,
- ns->ln_striped_dirs_failed,
- ns->ln_striped_dirs_disabled,
- ns->ln_striped_dirs_skipped,
- ns->ln_striped_shards_scanned,
- ns->ln_striped_shards_repaired,
- ns->ln_striped_shards_failed,
- ns->ln_striped_shards_skipped,
- ns->ln_name_hash_repaired,
- ns->ln_success_count,
- time_phase1,
- time_phase2);
+ const char *postfix = dryrun ? "inconsistent" : "repaired";
+
+ seq_printf(m, "checked_phase1: %llu\n"
+ "checked_phase2: %llu\n"
+ "%s_phase1: %llu\n"
+ "%s_phase2: %llu\n"
+ "failed_phase1: %llu\n"
+ "failed_phase2: %llu\n"
+ "directories: %llu\n"
+ "dirent_%s: %llu\n"
+ "linkea_%s: %llu\n"
+ "nlinks_%s: %llu\n"
+ "multiple_linked_checked: %llu\n"
+ "multiple_linked_%s: %llu\n"
+ "unknown_inconsistency: %llu\n"
+ "unmatched_pairs_%s: %llu\n"
+ "dangling_%s: %llu\n"
+ "multiple_referenced_%s: %llu\n"
+ "bad_file_type_%s: %llu\n"
+ "lost_dirent_%s: %llu\n"
+ "local_lost_found_scanned: %llu\n"
+ "local_lost_found_moved: %llu\n"
+ "local_lost_found_skipped: %llu\n"
+ "local_lost_found_failed: %llu\n"
+ "striped_dirs_scanned: %llu\n"
+ "striped_dirs_%s: %llu\n"
+ "striped_dirs_failed: %llu\n"
+ "striped_dirs_disabled: %llu\n"
+ "striped_dirs_skipped: %llu\n"
+ "striped_shards_scanned: %llu\n"
+ "striped_shards_%s: %llu\n"
+ "striped_shards_failed: %llu\n"
+ "striped_shards_skipped: %llu\n"
+ "name_hash_%s: %llu\n"
+ "linkea_overflow_%s: %llu\n"
+ "agent_entries_%s: %llu\n"
+ "success_count: %u\n"
+ "run_time_phase1: %lld seconds\n"
+ "run_time_phase2: %lld seconds\n",
+ checked_phase1,
+ checked_phase2,
+ dryrun ? "inconsistent" : "updated",
+ ns->ln_items_repaired,
+ dryrun ? "inconsistent" : "updated",
+ ns->ln_objs_repaired_phase2,
+ ns->ln_items_failed,
+ ns->ln_objs_failed_phase2,
+ ns->ln_dirs_checked,
+ postfix, ns->ln_dirent_repaired,
+ postfix, ns->ln_linkea_repaired,
+ postfix, ns->ln_objs_nlink_repaired,
+ ns->ln_mul_linked_checked,
+ postfix, ns->ln_mul_linked_repaired,
+ ns->ln_unknown_inconsistency,
+ postfix, ns->ln_unmatched_pairs_repaired,
+ postfix, ns->ln_dangling_repaired,
+ postfix, ns->ln_mul_ref_repaired,
+ postfix, ns->ln_bad_type_repaired,
+ postfix, ns->ln_lost_dirent_repaired,
+ ns->ln_local_lpf_scanned,
+ ns->ln_local_lpf_moved,
+ ns->ln_local_lpf_skipped,
+ ns->ln_local_lpf_failed,
+ ns->ln_striped_dirs_scanned,
+ postfix, ns->ln_striped_dirs_repaired,
+ ns->ln_striped_dirs_failed,
+ ns->ln_striped_dirs_disabled,
+ ns->ln_striped_dirs_skipped,
+ ns->ln_striped_shards_scanned,
+ postfix, ns->ln_striped_shards_repaired,
+ ns->ln_striped_shards_failed,
+ ns->ln_striped_shards_skipped,
+ postfix, ns->ln_name_hash_repaired,
+ dryrun ? "inconsistent" : "cleared",
+ ns->ln_linkea_overflow_cleared,
+ postfix, ns->ln_agent_entries_repaired,
+ ns->ln_success_count,
+ time_phase1,
+ time_phase2);
}
static void lfsck_namespace_release_lmv(const struct lu_env *env,
}
}
+static int lfsck_namespace_check_for_double_scan(const struct lu_env *env,
+ struct lfsck_component *com,
+ struct dt_object *obj)
+{
+ struct lu_attr *la = &lfsck_env_info(env)->lti_la;
+ int rc;
+
+ rc = dt_attr_get(env, obj, la);
+ if (rc != 0)
+ return rc;
+
+ /* zero-linkEA object may be orphan, but it also maybe because
+ * of upgrading. Currently, we cannot record it for double scan.
+ * Because it may cause the LFSCK trace file to be too large. */
+
+ /* "la_ctime" == 1 means that it has ever been removed from
+ * backend /lost+found directory but not been added back to
+ * the normal namespace yet. */
+
+ if ((S_ISREG(lfsck_object_type(obj)) && la->la_nlink > 1) ||
+ unlikely(la->la_ctime == 1))
+ rc = lfsck_namespace_trace_update(env, com, lfsck_dto2fid(obj),
+ LNTF_CHECK_LINKEA, true);
+
+ return rc;
+}
+
/* namespace APIs */
static int lfsck_namespace_reset(const struct lu_env *env,
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_assistant_data *lad = com->lc_data;
struct dt_object *root;
- struct dt_object *dto;
int rc;
ENTRY;
memset(ns, 0, sizeof(*ns));
} else {
__u32 count = ns->ln_success_count;
- __u64 last_time = ns->ln_time_last_complete;
+ time64_t last_time = ns->ln_time_last_complete;
memset(ns, 0, sizeof(*ns));
ns->ln_success_count = count;
}
ns->ln_magic = LFSCK_NAMESPACE_MAGIC;
ns->ln_status = LS_INIT;
+ ns->ln_time_latest_reset = ktime_get_real_seconds();
- rc = local_object_unlink(env, lfsck->li_bottom, root,
- lfsck_namespace_name);
- if (rc != 0)
+ rc = lfsck_load_one_trace_file(env, com, root, &com->lc_obj,
+ &dt_lfsck_namespace_features,
+ LFSCK_NAMESPACE, true);
+ if (rc)
GOTO(out, rc);
- lfsck_object_put(env, com->lc_obj);
- com->lc_obj = NULL;
- dto = local_index_find_or_create(env, lfsck->li_los, root,
- lfsck_namespace_name,
- S_IFREG | S_IRUGO | S_IWUSR,
- &dt_lfsck_features);
- if (IS_ERR(dto))
- GOTO(out, rc = PTR_ERR(dto));
-
- com->lc_obj = dto;
- rc = dto->do_ops->do_index_try(env, dto, &dt_lfsck_features);
+ rc = lfsck_load_sub_trace_files(env, com, &dt_lfsck_namespace_features,
+ LFSCK_NAMESPACE, true);
if (rc != 0)
GOTO(out, rc);
- lad->lad_incomplete = 0;
+ clear_bit(LAD_INCOMPLETE, &lad->lad_flags);
CFS_RESET_BITMAP(lad->lad_bitmap);
- rc = lfsck_namespace_store(env, com, true);
+ rc = lfsck_namespace_store(env, com);
GOTO(out, rc);
up_write(&com->lc_sem);
put:
- lu_object_put(env, &root->do_lu);
+ lfsck_object_put(env, root);
log:
CDEBUG(D_LFSCK, "%s: namespace LFSCK reset: rc = %d\n",
lfsck_lfsck2name(lfsck), rc);
{
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_assistant_data *lad = com->lc_data;
+ struct lfsck_assistant_object *lso = NULL;
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_lmv *llmv = lfsck->li_lmv;
struct lfsck_namespace_req *lnr;
- __u32 size =
- sizeof(*lnr) + LFSCK_TMPBUF_LEN;
- bool wakeup = false;
+ struct lu_attr *la = &lfsck_env_info(env)->lti_la2;
+ __u32 size = sizeof(*lnr) + LFSCK_TMPBUF_LEN;
+ int rc;
+ bool wakeup = false;
ENTRY;
if (llmv == NULL)
RETURN_EXIT;
+ rc = dt_attr_get(env, lfsck->li_obj_dir, la);
+ if (rc)
+ RETURN_EXIT;
+
OBD_ALLOC(lnr, size);
if (lnr == NULL) {
ns->ln_striped_dirs_skipped++;
RETURN_EXIT;
}
+ lso = lfsck_assistant_object_init(env, lfsck_dto2fid(lfsck->li_obj_dir),
+ la, lfsck->li_pos_current.lp_oit_cookie, true);
+ if (IS_ERR(lso)) {
+ OBD_FREE(lnr, size);
+ ns->ln_striped_dirs_skipped++;
+
+ RETURN_EXIT;
+ }
+
/* Generate a dummy request to indicate that all shards' name entry
* in this striped directory has been scanned for the first time. */
INIT_LIST_HEAD(&lnr->lnr_lar.lar_list);
- lnr->lnr_obj = lfsck_object_get(lfsck->li_obj_dir);
+ lnr->lnr_lar.lar_parent = lso;
lnr->lnr_lmv = lfsck_lmv_get(llmv);
lnr->lnr_fid = *lfsck_dto2fid(lfsck->li_obj_dir);
- lnr->lnr_oit_cookie = lfsck->li_pos_current.lp_oit_cookie;
lnr->lnr_dir_cookie = MDS_DIR_END_OFF;
lnr->lnr_size = size;
+ lnr->lnr_type = lso->lso_attr.la_mode;
spin_lock(&lad->lad_lock);
- if (lad->lad_assistant_status < 0) {
+ if (lad->lad_assistant_status < 0 ||
+ unlikely(!thread_is_running(&lfsck->li_thread) ||
+ !thread_is_running(&lad->lad_thread))) {
spin_unlock(&lad->lad_lock);
lfsck_namespace_assistant_req_fini(env, &lnr->lnr_lar);
ns->ln_striped_dirs_skipped++;
if (llmv->ll_lmv_master) {
struct lmv_mds_md_v1 *lmv = &llmv->ll_lmv;
- if (lmv->lmv_master_mdt_index !=
- lfsck_dev_idx(lfsck->li_bottom)) {
+ if (lmv->lmv_master_mdt_index != lfsck_dev_idx(lfsck)) {
lmv->lmv_master_mdt_index =
- lfsck_dev_idx(lfsck->li_bottom);
+ lfsck_dev_idx(lfsck);
ns->ln_flags |= LF_INCONSISTENT;
llmv->ll_lmv_updated = 1;
}
ns->ln_pos_latest_start = lfsck->li_pos_checkpoint;
} else {
ns->ln_pos_last_checkpoint = lfsck->li_pos_checkpoint;
- ns->ln_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->li_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
+ ns->ln_run_time_phase1 += ktime_get_seconds() -
+ lfsck->li_time_last_checkpoint;
+ ns->ln_time_last_checkpoint = ktime_get_real_seconds();
ns->ln_items_checked += com->lc_new_checked;
com->lc_new_checked = 0;
}
- rc = lfsck_namespace_store(env, com, false);
+ rc = lfsck_namespace_store(env, com);
up_write(&com->lc_sem);
log:
- CDEBUG(D_LFSCK, "%s: namespace LFSCK checkpoint at the pos ["LPU64
- ", "DFID", "LPX64"]: rc = %d\n", lfsck_lfsck2name(lfsck),
- lfsck->li_pos_current.lp_oit_cookie,
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK checkpoint at the pos [%llu"
+ ", "DFID", %#llx], status = %d: rc = %d\n",
+ lfsck_lfsck2name(lfsck), lfsck->li_pos_current.lp_oit_cookie,
PFID(&lfsck->li_pos_current.lp_dir_parent),
- lfsck->li_pos_current.lp_dir_cookie, rc);
+ lfsck->li_pos_current.lp_dir_cookie, ns->ln_status, rc);
return rc > 0 ? 0 : rc;
}
}
down_write(&com->lc_sem);
- ns->ln_time_latest_start = cfs_time_current_sec();
+ ns->ln_time_latest_start = ktime_get_real_seconds();
spin_lock(&lfsck->li_lock);
if (ns->ln_flags & LF_SCANNED_ONCE) {
rc = lfsck_start_assistant(env, com, lsp);
- CDEBUG(D_LFSCK, "%s: namespace LFSCK prep done, start pos ["LPU64", "
- DFID", "LPX64"]: rc = %d\n",
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK prep done, start pos [%llu, "
+ DFID", %#llx]: rc = %d\n",
lfsck_lfsck2name(lfsck), pos->lp_oit_cookie,
PFID(&pos->lp_dir_parent), pos->lp_dir_cookie, rc);
struct lfsck_namespace *ns = com->lc_file_ram;
struct lfsck_instance *lfsck = com->lc_lfsck;
const struct lu_fid *fid = lfsck_dto2fid(obj);
- struct lu_attr *la = &info->lti_la;
struct lu_fid *pfid = &info->lti_fid2;
struct lu_name *cname = &info->lti_name;
struct lu_seq_range *range = &info->lti_range;
- struct dt_device *dev = lfsck->li_bottom;
- struct seq_server_site *ss =
- lu_site2seq(dev->dd_lu_dev.ld_site);
- struct linkea_data ldata = { 0 };
- __u32 idx = lfsck_dev_idx(dev);
+ struct seq_server_site *ss = lfsck_dev_site(lfsck);
+ struct linkea_data ldata = { NULL };
+ __u32 idx = lfsck_dev_idx(lfsck);
int rc;
+ bool remote = false;
ENTRY;
rc = lfsck_links_read(env, obj, &ldata);
GOTO(out, rc = (rc == -ENOENT ? 0 : rc));
}
- /* zero-linkEA object may be orphan, but it also maybe because
- * of upgrading. Currently, we cannot record it for double scan.
- * Because it may cause the LFSCK trace file to be too large. */
- if (rc == -ENODATA) {
- if (S_ISDIR(lfsck_object_type(obj)))
- GOTO(out, rc = 0);
+ if (rc && rc != -ENODATA)
+ GOTO(out, rc);
- rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
- if (rc != 0)
- GOTO(out, rc);
+ if (rc == -ENODATA || unlikely(!ldata.ld_leh->leh_reccount)) {
+ rc = lfsck_namespace_check_for_double_scan(env, com, obj);
+
+ GOTO(out, rc);
+ }
- /* "la_ctime" == 1 means that it has ever been removed from
- * backend /lost+found directory but not been added back to
- * the normal namespace yet. */
- if (la->la_nlink > 1 || unlikely(la->la_ctime == 1))
+ linkea_first_entry(&ldata);
+ while (ldata.ld_lee != NULL) {
+ linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen,
+ cname, pfid);
+ if (!fid_is_sane(pfid)) {
rc = lfsck_namespace_trace_update(env, com, fid,
- LNTF_CHECK_LINKEA, true);
+ LNTF_CHECK_PARENT, true);
+ } else if (!linkea_entry_is_valid(&ldata, cname, pfid)) {
+ GOTO(out, rc);
+ } else {
+ fld_range_set_mdt(range);
+ rc = fld_server_lookup(env, ss->ss_server_fld,
+ fid_seq(pfid), range);
+ if ((rc == -ENOENT) ||
+ (!rc && range->lsr_index != idx)) {
+ remote = true;
+ break;
+ }
+ }
+ if (rc)
+ GOTO(out, rc);
- GOTO(out, rc);
+ linkea_next_entry(&ldata);
}
- if (rc != 0)
- GOTO(out, rc);
+ if ((lu_object_has_agent_entry(&obj->do_lu) && !remote) ||
+ (!lu_object_has_agent_entry(&obj->do_lu) && remote)) {
+ rc = lfsck_namespace_trace_update(env, com, fid,
+ LNTF_CHECK_AGENT_ENTRY, true);
+ if (rc)
+ GOTO(out, rc);
+ }
/* Record multiple-linked object. */
if (ldata.ld_leh->leh_reccount > 1) {
GOTO(out, rc);
}
- linkea_first_entry(&ldata);
- linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, cname, pfid);
- if (!fid_is_sane(pfid)) {
+ if (remote)
rc = lfsck_namespace_trace_update(env, com, fid,
- LNTF_CHECK_PARENT, true);
- } else {
- fld_range_set_mdt(range);
- rc = fld_local_lookup(env, ss->ss_server_fld,
- fid_seq(pfid), range);
- if ((rc == -ENOENT) ||
- (rc == 0 && range->lsr_index != idx)) {
- rc = lfsck_namespace_trace_update(env, com, fid,
- LNTF_CHECK_LINKEA, true);
- } else {
- if (S_ISDIR(lfsck_object_type(obj)))
- GOTO(out, rc = 0);
-
- rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
- if (rc != 0)
- GOTO(out, rc);
-
- /* "la_ctime" == 1 means that it has ever been
- * removed from backend /lost+found directory but
- * not been added back to the normal namespace yet. */
- if (la->la_nlink > 1 || unlikely(la->la_ctime == 1))
- rc = lfsck_namespace_trace_update(env, com,
- fid, LNTF_CHECK_LINKEA, true);
- }
- }
+ LNTF_CHECK_LINKEA, true);
+ else
+ rc = lfsck_namespace_check_for_double_scan(env, com, obj);
GOTO(out, rc);
out:
down_write(&com->lc_sem);
- com->lc_new_checked++;
if (S_ISDIR(lfsck_object_type(obj)))
ns->ln_dirs_checked++;
if (rc != 0)
static int lfsck_namespace_exec_dir(const struct lu_env *env,
struct lfsck_component *com,
+ struct lfsck_assistant_object *lso,
struct lu_dirent *ent, __u16 type)
{
struct lfsck_assistant_data *lad = com->lc_data;
bool wakeup = false;
l_wait_event(mthread->t_ctl_waitq,
- bk->lb_async_windows == 0 ||
lad->lad_prefetched < bk->lb_async_windows ||
!thread_is_running(mthread) ||
- thread_is_stopped(athread),
+ !thread_is_running(athread),
&lwi);
- if (unlikely(!thread_is_running(mthread)) ||
- thread_is_stopped(athread))
+ if (unlikely(!thread_is_running(mthread) ||
+ !thread_is_running(athread)))
return 0;
if (unlikely(lfsck_is_dead_obj(lfsck->li_obj_dir)))
return 0;
- lnr = lfsck_namespace_assistant_req_init(com->lc_lfsck, ent, type);
+ lnr = lfsck_namespace_assistant_req_init(com->lc_lfsck, lso, ent, type);
if (IS_ERR(lnr)) {
struct lfsck_namespace *ns = com->lc_file_ram;
}
spin_lock(&lad->lad_lock);
- if (lad->lad_assistant_status < 0) {
+ if (lad->lad_assistant_status < 0 ||
+ unlikely(!thread_is_running(mthread) ||
+ !thread_is_running(athread))) {
spin_unlock(&lad->lad_lock);
lfsck_namespace_assistant_req_fini(env, &lnr->lnr_lar);
return lad->lad_assistant_status;
spin_unlock(&lfsck->li_lock);
if (!init) {
- ns->ln_run_time_phase1 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->li_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
+ ns->ln_run_time_phase1 += ktime_get_seconds() -
+ lfsck->li_time_last_checkpoint;
+ ns->ln_time_last_checkpoint = ktime_get_real_seconds();
ns->ln_items_checked += com->lc_new_checked;
com->lc_new_checked = 0;
}
- rc = lfsck_namespace_store(env, com, false);
+ rc = lfsck_namespace_store(env, com);
up_write(&com->lc_sem);
CDEBUG(D_LFSCK, "%s: namespace LFSCK post done: rc = %d\n",
RETURN(rc);
}
-static int
+static void
lfsck_namespace_dump(const struct lu_env *env, struct lfsck_component *com,
struct seq_file *m)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct lfsck_namespace *ns = com->lc_file_ram;
- int rc;
down_read(&com->lc_sem);
seq_printf(m, "name: lfsck_namespace\n"
"status: %s\n",
ns->ln_magic,
bk->lb_version,
- lfsck_status2names(ns->ln_status));
+ lfsck_status2name(ns->ln_status));
- rc = lfsck_bits_dump(m, ns->ln_flags, lfsck_flags_names, "flags");
- if (rc < 0)
- goto out;
+ lfsck_bits_dump(m, ns->ln_flags, lfsck_flags_names, "flags");
- rc = lfsck_bits_dump(m, bk->lb_param, lfsck_param_names, "param");
- if (rc < 0)
- goto out;
+ lfsck_bits_dump(m, bk->lb_param, lfsck_param_names, "param");
- rc = lfsck_time_dump(m, ns->ln_time_last_complete,
- "time_since_last_completed");
- if (rc < 0)
- goto out;
+ lfsck_time_dump(m, ns->ln_time_last_complete, "last_completed");
- rc = lfsck_time_dump(m, ns->ln_time_latest_start,
- "time_since_latest_start");
- if (rc < 0)
- goto out;
+ lfsck_time_dump(m, ns->ln_time_latest_start, "latest_start");
- rc = lfsck_time_dump(m, ns->ln_time_last_checkpoint,
- "time_since_last_checkpoint");
- if (rc < 0)
- goto out;
+ lfsck_time_dump(m, ns->ln_time_last_checkpoint, "last_checkpoint");
- rc = lfsck_pos_dump(m, &ns->ln_pos_latest_start,
- "latest_start_position");
- if (rc < 0)
- goto out;
+ lfsck_pos_dump(m, &ns->ln_pos_latest_start, "latest_start_position");
- rc = lfsck_pos_dump(m, &ns->ln_pos_last_checkpoint,
- "last_checkpoint_position");
- if (rc < 0)
- goto out;
+ lfsck_pos_dump(m, &ns->ln_pos_last_checkpoint,
+ "last_checkpoint_position");
- rc = lfsck_pos_dump(m, &ns->ln_pos_first_inconsistent,
- "first_failure_position");
- if (rc < 0)
- goto out;
+ lfsck_pos_dump(m, &ns->ln_pos_first_inconsistent,
+ "first_failure_position");
if (ns->ln_status == LS_SCANNING_PHASE1) {
struct lfsck_position pos;
- const struct dt_it_ops *iops;
- cfs_duration_t duration = cfs_time_current() -
- lfsck->li_time_last_checkpoint;
- __u64 checked = ns->ln_items_checked + com->lc_new_checked;
- __u64 speed = checked;
- __u64 new_checked = com->lc_new_checked *
- msecs_to_jiffies(MSEC_PER_SEC);
- __u32 rtime = ns->ln_run_time_phase1 +
- cfs_duration_sec(duration + HALF_SEC);
+ time64_t duration = ktime_get_seconds() -
+ lfsck->li_time_last_checkpoint;
+ u64 checked = ns->ln_items_checked + com->lc_new_checked;
+ u64 speed = checked;
+ u64 new_checked = com->lc_new_checked;
+ time64_t rtime = ns->ln_run_time_phase1 + duration;
if (duration != 0)
- do_div(new_checked, duration);
- if (rtime != 0)
- do_div(speed, rtime);
- lfsck_namespace_dump_statistics(m, ns, checked,
- ns->ln_objs_checked_phase2,
- rtime, ns->ln_run_time_phase2);
-
- seq_printf(m, "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: N/A\n"
- "real_time_speed_phase1: "LPU64" items/sec\n"
- "real_time_speed_phase2: N/A\n",
- speed,
- new_checked);
-
- LASSERT(lfsck->li_di_oit != NULL);
+ new_checked = div64_s64(new_checked, duration);
- iops = &lfsck->li_obj_oit->do_index_ops->dio_it;
-
- /* The low layer otable-based iteration position may NOT
- * exactly match the namespace-based directory traversal
- * cookie. Generally, it is not a serious issue. But the
- * caller should NOT make assumption on that. */
- pos.lp_oit_cookie = iops->store(env, lfsck->li_di_oit);
- if (!lfsck->li_current_oit_processed)
- pos.lp_oit_cookie--;
-
- spin_lock(&lfsck->li_lock);
- if (lfsck->li_di_dir != NULL) {
- pos.lp_dir_cookie = lfsck->li_cookie_dir;
- if (pos.lp_dir_cookie >= MDS_DIR_END_OFF) {
+ if (rtime != 0)
+ speed = div64_s64(speed, rtime);
+
+ lfsck_namespace_dump_statistics(m, ns, checked, 0, rtime, 0,
+ bk->lb_param & LPF_DRYRUN);
+ seq_printf(m, "average_speed_phase1: %llu items/sec\n"
+ "average_speed_phase2: N/A\n"
+ "average_speed_total: %llu items/sec\n"
+ "real_time_speed_phase1: %llu items/sec\n"
+ "real_time_speed_phase2: N/A\n",
+ speed,
+ speed,
+ new_checked);
+
+ if (likely(lfsck->li_di_oit)) {
+ const struct dt_it_ops *iops =
+ &lfsck->li_obj_oit->do_index_ops->dio_it;
+
+ /* The low layer otable-based iteration position may NOT
+ * exactly match the namespace-based directory traversal
+ * cookie. Generally, it is not a serious issue. But the
+ * caller should NOT make assumption on that. */
+ pos.lp_oit_cookie = iops->store(env, lfsck->li_di_oit);
+ if (!lfsck->li_current_oit_processed)
+ pos.lp_oit_cookie--;
+
+ spin_lock(&lfsck->li_lock);
+ if (lfsck->li_di_dir) {
+ pos.lp_dir_cookie = lfsck->li_cookie_dir;
+ if (pos.lp_dir_cookie >= MDS_DIR_END_OFF) {
+ fid_zero(&pos.lp_dir_parent);
+ pos.lp_dir_cookie = 0;
+ } else {
+ pos.lp_dir_parent =
+ *lfsck_dto2fid(lfsck->li_obj_dir);
+ }
+ } else {
fid_zero(&pos.lp_dir_parent);
pos.lp_dir_cookie = 0;
- } else {
- pos.lp_dir_parent =
- *lfsck_dto2fid(lfsck->li_obj_dir);
}
+ spin_unlock(&lfsck->li_lock);
} else {
- fid_zero(&pos.lp_dir_parent);
- pos.lp_dir_cookie = 0;
+ pos = ns->ln_pos_last_checkpoint;
}
- spin_unlock(&lfsck->li_lock);
+
lfsck_pos_dump(m, &pos, "current_position");
} else if (ns->ln_status == LS_SCANNING_PHASE2) {
- cfs_duration_t duration = cfs_time_current() -
- lfsck->li_time_last_checkpoint;
+ time64_t duration = ktime_get_seconds() -
+ com->lc_time_last_checkpoint;
__u64 checked = ns->ln_objs_checked_phase2 +
com->lc_new_checked;
__u64 speed1 = ns->ln_items_checked;
__u64 speed2 = checked;
- __u64 new_checked = com->lc_new_checked *
- msecs_to_jiffies(MSEC_PER_SEC);
- __u32 rtime = ns->ln_run_time_phase2 +
- cfs_duration_sec(duration + HALF_SEC);
+ __u64 speed0 = speed1 + speed2;
+ __u64 new_checked = com->lc_new_checked;
+ time64_t rtime = ns->ln_run_time_phase2 + duration;
+ time64_t time0 = ns->ln_run_time_phase1 + rtime;
if (duration != 0)
- do_div(new_checked, duration);
+ new_checked = div64_s64(new_checked, duration);
+
if (ns->ln_run_time_phase1 != 0)
- do_div(speed1, ns->ln_run_time_phase1);
+ speed1 = div64_s64(speed1, ns->ln_run_time_phase1);
+ else if (ns->ln_items_checked != 0)
+ time0++;
+
if (rtime != 0)
- do_div(speed2, rtime);
+ speed2 = div64_s64(speed2, rtime);
+ else if (checked != 0)
+ time0++;
+
+ if (time0 != 0)
+ speed0 = div64_s64(speed0, time0);
+
lfsck_namespace_dump_statistics(m, ns, ns->ln_items_checked,
checked,
- ns->ln_run_time_phase1, rtime);
-
- seq_printf(m, "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: "LPU64" objs/sec\n"
- "real_time_speed_phase1: N/A\n"
- "real_time_speed_phase2: "LPU64" objs/sec\n"
- "current_position: "DFID"\n",
- speed1,
- speed2,
- new_checked,
- PFID(&ns->ln_fid_latest_scanned_phase2));
+ ns->ln_run_time_phase1, rtime,
+ bk->lb_param & LPF_DRYRUN);
+ seq_printf(m, "average_speed_phase1: %llu items/sec\n"
+ "average_speed_phase2: %llu objs/sec\n"
+ "average_speed_total: %llu items/sec\n"
+ "real_time_speed_phase1: N/A\n"
+ "real_time_speed_phase2: %llu objs/sec\n"
+ "current_position: "DFID"\n",
+ speed1,
+ speed2,
+ speed0,
+ new_checked,
+ PFID(&ns->ln_fid_latest_scanned_phase2));
} else {
__u64 speed1 = ns->ln_items_checked;
__u64 speed2 = ns->ln_objs_checked_phase2;
+ __u64 speed0 = speed1 + speed2;
+ time64_t time0 = ns->ln_run_time_phase1 + ns->ln_run_time_phase2;
if (ns->ln_run_time_phase1 != 0)
- do_div(speed1, ns->ln_run_time_phase1);
+ speed1 = div64_s64(speed1, ns->ln_run_time_phase1);
+ else if (ns->ln_items_checked != 0)
+ time0++;
+
if (ns->ln_run_time_phase2 != 0)
- do_div(speed2, ns->ln_run_time_phase2);
+ speed2 = div64_s64(speed2, ns->ln_run_time_phase2);
+ else if (ns->ln_objs_checked_phase2 != 0)
+ time0++;
+
+ if (time0 != 0)
+ speed0 = div64_s64(speed0, time0);
+
lfsck_namespace_dump_statistics(m, ns, ns->ln_items_checked,
ns->ln_objs_checked_phase2,
ns->ln_run_time_phase1,
- ns->ln_run_time_phase2);
-
- seq_printf(m, "average_speed_phase1: "LPU64" items/sec\n"
- "average_speed_phase2: "LPU64" objs/sec\n"
- "real_time_speed_phase1: N/A\n"
- "real_time_speed_phase2: N/A\n"
- "current_position: N/A\n",
- speed1,
- speed2);
+ ns->ln_run_time_phase2,
+ bk->lb_param & LPF_DRYRUN);
+ seq_printf(m, "average_speed_phase1: %llu items/sec\n"
+ "average_speed_phase2: %llu objs/sec\n"
+ "average_speed_total: %llu items/sec\n"
+ "real_time_speed_phase1: N/A\n"
+ "real_time_speed_phase2: N/A\n"
+ "current_position: N/A\n",
+ speed1,
+ speed2,
+ speed0);
}
-out:
+
up_read(&com->lc_sem);
- return 0;
}
static int lfsck_namespace_double_scan(const struct lu_env *env,
static int lfsck_namespace_in_notify(const struct lu_env *env,
struct lfsck_component *com,
- struct lfsck_request *lr,
- struct thandle *th)
+ struct lfsck_request *lr)
{
- struct lfsck_instance *lfsck = com->lc_lfsck;
- struct lfsck_namespace *ns = com->lc_file_ram;
- struct lfsck_assistant_data *lad = com->lc_data;
- struct lfsck_tgt_descs *ltds = &lfsck->li_mdt_descs;
- struct lfsck_tgt_desc *ltd;
- int rc;
- bool fail = false;
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ struct lfsck_assistant_data *lad = com->lc_data;
+ struct lfsck_tgt_descs *ltds = &lfsck->li_mdt_descs;
+ struct lfsck_tgt_desc *ltd;
+ int rc = 0;
+ bool fail = false;
ENTRY;
switch (lr->lr_event) {
- case LE_CREATE_ORPHAN: {
- struct dt_object *orphan = NULL;
- struct lmv_mds_md_v1 *lmv;
-
- CDEBUG(D_LFSCK, "%s: namespace LFSCK handling notify from "
- "MDT %x to create orphan"DFID" with type %o\n",
- lfsck_lfsck2name(lfsck), lr->lr_index,
- PFID(&lr->lr_fid), lr->lr_type);
-
- orphan = lfsck_object_find(env, lfsck, &lr->lr_fid);
- if (IS_ERR(orphan))
- GOTO(out_create, rc = PTR_ERR(orphan));
-
- if (dt_object_exists(orphan))
- GOTO(out_create, rc = -EEXIST);
-
- if (lr->lr_stripe_count > 0) {
- lmv = &lfsck_env_info(env)->lti_lmv;
- memset(lmv, 0, sizeof(*lmv));
- lmv->lmv_hash_type = lr->lr_hash_type;
- lmv->lmv_stripe_count = lr->lr_stripe_count;
- lmv->lmv_layout_version = lr->lr_layout_version;
- memcpy(lmv->lmv_pool_name, lr->lr_pool_name,
- sizeof(lmv->lmv_pool_name));
- } else {
- lmv = NULL;
- }
-
- rc = lfsck_namespace_create_orphan_local(env, com, orphan,
- lr->lr_type, lmv);
-
- GOTO(out_create, rc = (rc == 1) ? 0 : rc);
-
-out_create:
- CDEBUG(D_LFSCK, "%s: namespace LFSCK handled notify from "
- "MDT %x to create orphan"DFID" with type %o: rc = %d\n",
- lfsck_lfsck2name(lfsck), lr->lr_index,
- PFID(&lr->lr_fid), lr->lr_type, rc);
-
- if (orphan != NULL && !IS_ERR(orphan))
- lfsck_object_put(env, orphan);
-
- return rc;
- }
- case LE_SKIP_NLINK_DECLARE: {
- struct dt_object *obj = com->lc_obj;
- struct lu_fid *key = &lfsck_env_info(env)->lti_fid3;
- __u8 flags = 0;
-
- LASSERT(th != NULL);
-
- rc = dt_declare_delete(env, obj,
- (const struct dt_key *)key, th);
- if (rc == 0)
- rc = dt_declare_insert(env, obj,
- (const struct dt_rec *)&flags,
- (const struct dt_key *)key, th);
-
- RETURN(rc);
- }
- case LE_SKIP_NLINK: {
- struct dt_object *obj = com->lc_obj;
- struct lu_fid *key = &lfsck_env_info(env)->lti_fid3;
- __u8 flags = 0;
- bool exist = false;
- ENTRY;
-
- LASSERT(th != NULL);
-
- fid_cpu_to_be(key, &lr->lr_fid);
- rc = dt_lookup(env, obj, (struct dt_rec *)&flags,
- (const struct dt_key *)key, BYPASS_CAPA);
- if (rc == 0) {
- if (flags & LNTF_SKIP_NLINK)
- RETURN(0);
-
- exist = true;
- } else if (rc != -ENOENT) {
- GOTO(log, rc);
- }
-
- flags |= LNTF_SKIP_NLINK;
- if (exist) {
- rc = dt_delete(env, obj, (const struct dt_key *)key,
- th, BYPASS_CAPA);
- if (rc != 0)
- GOTO(log, rc);
- }
-
- rc = dt_insert(env, obj, (const struct dt_rec *)&flags,
- (const struct dt_key *)key, th, BYPASS_CAPA, 1);
-
- GOTO(log, rc);
-
-log:
- CDEBUG(D_LFSCK, "%s: RPC service thread mark the "DFID
- " to be skipped for namespace double scan: rc = %d\n",
- lfsck_lfsck2name(com->lc_lfsck), PFID(&lr->lr_fid), rc);
-
- if (rc != 0)
- /* If we cannot record this object in the LFSCK tracing,
- * we have to mark the LFSC as LF_INCOMPLETE, then the
- * LFSCK will skip nlink attribute verification for
- * all objects. */
- ns->ln_flags |= LF_INCOMPLETE;
-
- return 0;
- }
case LE_SET_LMV_MASTER: {
struct dt_object *obj;
- obj = lfsck_object_find_by_dev(env, lfsck->li_bottom,
- &lr->lr_fid);
+ obj = lfsck_object_find_bottom(env, lfsck, &lr->lr_fid);
if (IS_ERR(obj))
RETURN(PTR_ERR(obj));
- rc = lfsck_namespace_notify_lmv_master_local(env, com, obj);
+ if (likely(dt_object_exists(obj)))
+ rc = lfsck_namespace_notify_lmv_master_local(env, com,
+ obj);
+
lfsck_object_put(env, obj);
RETURN(rc > 0 ? 0 : rc);
lr->lr_index, lr->lr_status, lr->lr_flags2);
spin_lock(<ds->ltd_lock);
- ltd = LTD_TGT(ltds, lr->lr_index);
+ ltd = lfsck_ltd2tgt(ltds, lr->lr_index);
if (ltd == NULL) {
spin_unlock(<ds->ltd_lock);
RETURN(0);
}
+static void lfsck_namespace_repaired(struct lfsck_namespace *ns, __u64 *count)
+{
+ *count += ns->ln_objs_nlink_repaired;
+ *count += ns->ln_dirent_repaired;
+ *count += ns->ln_linkea_repaired;
+ *count += ns->ln_mul_linked_repaired;
+ *count += ns->ln_unmatched_pairs_repaired;
+ *count += ns->ln_dangling_repaired;
+ *count += ns->ln_mul_ref_repaired;
+ *count += ns->ln_bad_type_repaired;
+ *count += ns->ln_lost_dirent_repaired;
+ *count += ns->ln_striped_dirs_disabled;
+ *count += ns->ln_striped_dirs_repaired;
+ *count += ns->ln_striped_shards_repaired;
+ *count += ns->ln_name_hash_repaired;
+ *count += ns->ln_local_lpf_moved;
+}
+
+static int lfsck_namespace_query_all(const struct lu_env *env,
+ struct lfsck_component *com,
+ __u32 *mdts_count, __u64 *repaired)
+{
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ struct lfsck_tgt_descs *ltds = &com->lc_lfsck->li_mdt_descs;
+ struct lfsck_tgt_desc *ltd;
+ int idx;
+ int rc;
+ ENTRY;
+
+ rc = lfsck_query_all(env, com);
+ if (rc != 0)
+ RETURN(rc);
+
+ down_read(<ds->ltd_rw_sem);
+ cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
+ ltd = lfsck_ltd2tgt(ltds, idx);
+ LASSERT(ltd != NULL);
+
+ mdts_count[ltd->ltd_namespace_status]++;
+ *repaired += ltd->ltd_namespace_repaired;
+ }
+ up_read(<ds->ltd_rw_sem);
+
+ down_read(&com->lc_sem);
+ mdts_count[ns->ln_status]++;
+ lfsck_namespace_repaired(ns, repaired);
+ up_read(&com->lc_sem);
+
+ RETURN(0);
+}
+
static int lfsck_namespace_query(const struct lu_env *env,
- struct lfsck_component *com)
+ struct lfsck_component *com,
+ struct lfsck_request *req,
+ struct lfsck_reply *rep,
+ struct lfsck_query *que, int idx)
{
struct lfsck_namespace *ns = com->lc_file_ram;
+ int rc = 0;
- return ns->ln_status;
+ if (que != NULL) {
+ LASSERT(com->lc_lfsck->li_master);
+
+ rc = lfsck_namespace_query_all(env, com,
+ que->lu_mdts_count[idx],
+ &que->lu_repaired[idx]);
+ } else {
+ down_read(&com->lc_sem);
+ rep->lr_status = ns->ln_status;
+ if (req->lr_flags & LEF_QUERY_ALL)
+ lfsck_namespace_repaired(ns, &rep->lr_repaired);
+ up_read(&com->lc_sem);
+ }
+
+ return rc;
}
static struct lfsck_operations lfsck_namespace_ops = {
*
* \param[in] env pointer to the thread context
* \param[in] com pointer to the lfsck component
+ * \param[in] parent pointer to the dir object that contains the dangling
+ * name entry
* \param[in] child pointer to the object corresponding to the dangling
* name entry
* \param[in] lnr pointer to the namespace request that contains the
*/
int lfsck_namespace_repair_dangling(const struct lu_env *env,
struct lfsck_component *com,
+ struct dt_object *parent,
struct dt_object *child,
struct lfsck_namespace_req *lnr)
{
- struct lfsck_thread_info *info = lfsck_env_info(env);
- struct lu_attr *la = &info->lti_la;
- struct dt_allocation_hint *hint = &info->lti_hint;
- struct dt_object_format *dof = &info->lti_dof;
- struct dt_insert_rec *rec = &info->lti_dt_rec;
- struct lmv_mds_md_v1 *lmv2 = &info->lti_lmv2;
- struct dt_object *parent = lnr->lnr_obj;
- const struct lu_name *cname;
- struct linkea_data ldata = { 0 };
- struct lustre_handle lh = { 0 };
- struct lu_buf linkea_buf;
- struct lu_buf lmv_buf;
- struct lfsck_instance *lfsck = com->lc_lfsck;
- struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
- struct dt_device *dev = lfsck_obj2dt_dev(child);
- struct thandle *th = NULL;
- int rc = 0;
- __u16 type = lnr->lnr_type;
- bool create;
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lu_attr *la = &info->lti_la;
+ struct dt_allocation_hint *hint = &info->lti_hint;
+ struct dt_object_format *dof = &info->lti_dof;
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
+ struct lmv_mds_md_v1 *lmv2 = &info->lti_lmv2;
+ const struct lu_name *cname;
+ const struct lu_fid *pfid = lfsck_dto2fid(parent);
+ const struct lu_fid *cfid = lfsck_dto2fid(child);
+ struct linkea_data ldata = { NULL };
+ struct lfsck_lock_handle *llh = &info->lti_llh;
+ struct lustre_handle rlh = { 0 };
+ struct lustre_handle clh = { 0 };
+ struct lu_buf linkea_buf;
+ struct lu_buf lmv_buf;
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ struct dt_device *dev = lfsck->li_next;
+ struct thandle *th = NULL;
+ int rc = 0;
+ __u16 type = lnr->lnr_type;
+ bool create;
ENTRY;
cname = lfsck_name_get_const(env, lnr->lnr_name, lnr->lnr_namelen);
if (!create || bk->lb_param & LPF_DRYRUN)
GOTO(log, rc = 0);
- rc = linkea_data_new(&ldata, &info->lti_linkea_buf2);
- if (rc != 0)
- GOTO(log, rc);
+ /* We may need to create the sub-objects of the @child via LOD,
+ * so make the modification based on lfsck->li_next. */
+
+ parent = lfsck_object_locate(dev, parent);
+ if (IS_ERR(parent))
+ GOTO(log, rc = PTR_ERR(parent));
- rc = linkea_add_buf(&ldata, cname, lfsck_dto2fid(parent));
+ if (unlikely(!dt_try_as_dir(env, parent)))
+ GOTO(log, rc = -ENOTDIR);
+
+ child = lfsck_object_locate(dev, child);
+ if (IS_ERR(child))
+ GOTO(log, rc = PTR_ERR(child));
+
+ rc = linkea_links_new(&ldata, &info->lti_linkea_buf2,
+ cname, pfid);
if (rc != 0)
GOTO(log, rc);
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
+ rc = lfsck_lock(env, lfsck, parent, lnr->lnr_name, llh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
GOTO(log, rc);
if (rc != 0)
GOTO(log, rc);
- th = dt_trans_create(env, dev);
- if (IS_ERR(th))
- GOTO(log, rc = PTR_ERR(th));
+ if (dt_object_remote(child)) {
+ rc = lfsck_remote_lookup_lock(env, lfsck, parent, child, &rlh,
+ LCK_EX);
+ if (rc != 0)
+ GOTO(log, rc);
+ }
+
+ rc = lfsck_ibits_lock(env, lfsck, child, &clh,
+ MDS_INODELOCK_UPDATE | MDS_INODELOCK_LOOKUP |
+ MDS_INODELOCK_XATTR, LCK_EX);
+ if (rc != 0)
+ GOTO(unlock_remote_lookup, rc);
/* Set the ctime as zero, then others can know it is created for
* repairing dangling name entry by LFSCK. And if the LFSCK made
* wrong decision and the real MDT-object has been found later,
* then the LFSCK has chance to fix the incosistency properly. */
memset(la, 0, sizeof(*la));
- la->la_mode = (type & S_IFMT) | 0600;
- la->la_valid = LA_TYPE | LA_MODE | LA_UID | LA_GID |
- LA_ATIME | LA_MTIME | LA_CTIME;
-
- child->do_ops->do_ah_init(env, hint, parent, child,
- la->la_mode & S_IFMT);
+ if (S_ISDIR(type))
+ la->la_mode = (type & S_IFMT) | 0700;
+ else
+ la->la_mode = (type & S_IFMT) | 0600;
+ la->la_valid = LA_TYPE | LA_MODE | LA_CTIME;
+
+ /*
+ * if it's directory, skip do_ah_init() to create a plain directory
+ * because it may have shards already, which will be inserted back
+ * later, besides, it may be remote, and creating stripe directory
+ * remotely is not supported.
+ */
+ if (S_ISREG(type))
+ child->do_ops->do_ah_init(env, hint, parent, child, type);
memset(dof, 0, sizeof(*dof));
dof->dof_type = dt_mode_to_dft(type);
* the MDT-object without stripes (dof->dof_reg.striped = 0). related
* OST-objects will be created when write open. */
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ GOTO(unlock_child, rc = PTR_ERR(th));
+
/* 1a. create child. */
rc = dt_declare_create(env, child, la, hint, dof, th);
if (rc != 0)
if (unlikely(!dt_try_as_dir(env, child)))
GOTO(stop, rc = -ENOTDIR);
- /* 2a. insert dot into child dir */
+ /* 2a. increase child nlink */
+ rc = dt_declare_ref_add(env, child, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 3a. insert dot into child dir */
rec->rec_type = S_IFDIR;
- rec->rec_fid = lfsck_dto2fid(child);
+ rec->rec_fid = cfid;
rc = dt_declare_insert(env, child,
(const struct dt_rec *)rec,
(const struct dt_key *)dot, th);
if (rc != 0)
GOTO(stop, rc);
- /* 3a. insert dotdot into child dir */
- rec->rec_fid = lfsck_dto2fid(parent);
+ /* 4a. insert dotdot into child dir */
+ rec->rec_fid = pfid;
rc = dt_declare_insert(env, child,
(const struct dt_rec *)rec,
(const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(stop, rc);
- /* 4a. increase child nlink */
- rc = dt_declare_ref_add(env, child, th);
- if (rc != 0)
- GOTO(stop, rc);
-
/* 5a. generate slave LMV EA. */
if (lnr->lnr_lmv != NULL && lnr->lnr_lmv->ll_lmv_master) {
int idx;
idx = lfsck_shard_name_to_index(env,
lnr->lnr_name, lnr->lnr_namelen,
- type, lfsck_dto2fid(child));
+ type, cfid);
if (unlikely(idx < 0))
GOTO(stop, rc = idx);
lfsck_lmv_header_cpu_to_le(lmv2, lmv2);
lfsck_buf_init(&lmv_buf, lmv2, sizeof(*lmv2));
rc = dt_declare_xattr_set(env, child, &lmv_buf,
- XATTR_NAME_LMV, 0, th);
+ XATTR_NAME_LMV".set", 0, th);
if (rc != 0)
GOTO(stop, rc);
}
if (rc != 0)
GOTO(stop, rc);
- rc = dt_trans_start(env, dev, th);
+ /* 7a. if child is remote, delete and insert to generate local agent */
+ if (dt_object_remote(child)) {
+ rc = dt_declare_delete(env, parent,
+ (const struct dt_key *)lnr->lnr_name,
+ th);
+ if (rc)
+ GOTO(stop, rc);
+
+ rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)lnr->lnr_name,
+ th);
+ if (rc)
+ GOTO(stop, rc);
+ }
+
+ rc = dt_trans_start_local(env, dev, th);
if (rc != 0)
GOTO(stop, rc = (rc == -EEXIST ? 1 : rc));
GOTO(unlock, rc = (rc == -EEXIST ? 1 : rc));
if (S_ISDIR(type)) {
- if (unlikely(!dt_try_as_dir(env, child)))
- GOTO(unlock, rc = -ENOTDIR);
-
- /* 2b. insert dot into child dir */
- rec->rec_type = S_IFDIR;
- rec->rec_fid = lfsck_dto2fid(child);
- rc = dt_insert(env, child, (const struct dt_rec *)rec,
- (const struct dt_key *)dot, th, BYPASS_CAPA, 1);
+ /* 2b. increase child nlink */
+ rc = dt_ref_add(env, child, th);
if (rc != 0)
GOTO(unlock, rc);
- /* 3b. insert dotdot into child dir */
- rec->rec_fid = lfsck_dto2fid(parent);
+ /* 3b. insert dot into child dir */
+ rec->rec_type = S_IFDIR;
+ rec->rec_fid = cfid;
rc = dt_insert(env, child, (const struct dt_rec *)rec,
- (const struct dt_key *)dotdot, th,
- BYPASS_CAPA, 1);
+ (const struct dt_key *)dot, th);
if (rc != 0)
GOTO(unlock, rc);
- /* 4b. increase child nlink */
- rc = dt_ref_add(env, child, th);
+ /* 4b. insert dotdot into child dir */
+ rec->rec_fid = pfid;
+ rc = dt_insert(env, child, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th);
if (rc != 0)
GOTO(unlock, rc);
/* 5b. generate slave LMV EA. */
if (lnr->lnr_lmv != NULL && lnr->lnr_lmv->ll_lmv_master) {
- rc = dt_xattr_set(env, child, &lmv_buf, XATTR_NAME_LMV,
- 0, th, BYPASS_CAPA);
+ rc = dt_xattr_set(env, child, &lmv_buf,
+ XATTR_NAME_LMV".set", 0, th);
if (rc != 0)
GOTO(unlock, rc);
}
/* 6b. insert linkEA for child. */
rc = dt_xattr_set(env, child, &linkea_buf,
- XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ XATTR_NAME_LINK, 0, th);
+ if (rc)
+ GOTO(unlock, rc);
+
+ /* 7b. if child is remote, delete and insert to generate local agent */
+ if (dt_object_remote(child)) {
+ rc = dt_delete(env, parent,
+ (const struct dt_key *)lnr->lnr_name, th);
+ if (rc)
+ GOTO(unlock, rc);
+
+ rec->rec_type = type;
+ rec->rec_fid = cfid;
+ rc = dt_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)lnr->lnr_name, th);
+ if (rc)
+ GOTO(unlock, rc);
+ }
GOTO(unlock, rc);
stop:
dt_trans_stop(env, dev, th);
+unlock_child:
+ lfsck_ibits_unlock(&clh, LCK_EX);
+unlock_remote_lookup:
+ if (dt_object_remote(child))
+ lfsck_ibits_unlock(&rlh, LCK_EX);
log:
- lfsck_ibits_unlock(&lh, LCK_EX);
+ lfsck_unlock(llh);
CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant found dangling "
"reference for: parent "DFID", child "DFID", type %u, "
"name %s. %s: rc = %d\n", lfsck_lfsck2name(lfsck),
- PFID(lfsck_dto2fid(parent)), PFID(lfsck_dto2fid(child)),
- type, cname->ln_name,
- create ? "Create the lost OST-object as required" :
+ PFID(pfid), PFID(cfid), type, cname->ln_name,
+ create ? "Create the lost MDT-object as required" :
"Keep the MDT-object there by default", rc);
if (rc <= 0) {
struct lfsck_instance *lfsck = com->lc_lfsck;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct lfsck_namespace *ns = com->lc_file_ram;
- struct linkea_data ldata = { 0 };
+ struct lfsck_assistant_data *lad = com->lc_data;
+ struct linkea_data ldata = { NULL };
const struct lu_name *cname;
struct thandle *handle = NULL;
struct lfsck_namespace_req *lnr =
container_of0(lar, struct lfsck_namespace_req, lnr_lar);
- struct dt_object *dir = lnr->lnr_obj;
+ struct dt_object *dir = NULL;
struct dt_object *obj = NULL;
- const struct lu_fid *pfid = lfsck_dto2fid(dir);
+ struct lfsck_assistant_object *lso = lar->lar_parent;
+ const struct lu_fid *pfid = &lso->lso_fid;
struct dt_device *dev = NULL;
struct lustre_handle lh = { 0 };
bool repaired = false;
bool newdata;
bool log = false;
bool bad_hash = false;
+ bool bad_linkea = false;
int idx = 0;
int count = 0;
- int rc;
+ int rc = 0;
enum lfsck_namespace_inconsistency_type type = LNIT_NONE;
ENTRY;
+ if (lso->lso_dead)
+ RETURN(0);
+
+ la->la_nlink = 0;
if (lnr->lnr_attr & LUDA_UPGRADE) {
ns->ln_flags |= LF_UPGRADE;
ns->ln_dirent_repaired++;
GOTO(out, rc);
}
+ if (unlikely(!fid_is_sane(&lnr->lnr_fid))) {
+ CDEBUG(D_LFSCK, "%s: dir scan find invalid FID "DFID
+ " for the name entry %.*s under "DFID"\n",
+ lfsck_lfsck2name(lfsck), PFID(&lnr->lnr_fid),
+ lnr->lnr_namelen, lnr->lnr_name, PFID(pfid));
+
+ if (strcmp(lnr->lnr_name, dotdot) != 0)
+ /* invalid FID means bad name entry, remove it. */
+ type = LNIT_BAD_DIRENT;
+ else
+ /* If the parent FID is invalid, we cannot remove
+ * the ".." entry directly. */
+ rc = lfsck_namespace_trace_update(env, com, pfid,
+ LNTF_CHECK_PARENT, true);
+
+ GOTO(out, rc);
+ }
+
if (unlikely(lnr->lnr_dir_cookie == MDS_DIR_END_OFF)) {
rc = lfsck_namespace_striped_dir_rescan(env, com, lnr);
RETURN(rc);
}
- if (lnr->lnr_name[0] == '.' &&
- (lnr->lnr_namelen == 1 || fid_seq_is_dot(fid_seq(&lnr->lnr_fid))))
+ if (fid_seq_is_dot(fid_seq(&lnr->lnr_fid)))
GOTO(out, rc = 0);
if (lnr->lnr_lmv != NULL && lnr->lnr_lmv->ll_lmv_master) {
if (idx < 0)
GOTO(out, rc = idx);
- if (idx == lfsck_dev_idx(lfsck->li_bottom)) {
+ if (idx == lfsck_dev_idx(lfsck)) {
if (unlikely(strcmp(lnr->lnr_name, dotdot) == 0))
GOTO(out, rc = 0);
- dev = lfsck->li_next;
+ dev = lfsck->li_bottom;
} else {
struct lfsck_tgt_desc *ltd;
GOTO(out, rc);
}
- ltd = LTD_TGT(&lfsck->li_mdt_descs, idx);
+ ltd = lfsck_ltd2tgt(&lfsck->li_mdt_descs, idx);
if (unlikely(ltd == NULL)) {
CDEBUG(D_LFSCK, "%s: cannot talk with MDT %x which "
"did not join the namespace LFSCK\n",
if (dt_object_exists(obj) == 0) {
dangling:
+ if (dir == NULL) {
+ dir = lfsck_assistant_object_load(env, lfsck, lso);
+ if (IS_ERR(dir)) {
+ rc = PTR_ERR(dir);
+
+ GOTO(trace, rc == -ENOENT ? 0 : rc);
+ }
+ }
+
rc = lfsck_namespace_check_exist(env, dir, obj, lnr->lnr_name);
if (rc == 0) {
if (!lfsck_is_valid_slave_name_entry(env, lnr->lnr_lmv,
}
type = LNIT_DANGLING;
- rc = lfsck_namespace_repair_dangling(env, com,
+ rc = lfsck_namespace_repair_dangling(env, com, dir,
obj, lnr);
if (rc == 0)
repaired = true;
GOTO(out, rc);
}
- if (!(bk->lb_param & LPF_DRYRUN) && repaired) {
+ if (!(bk->lb_param & LPF_DRYRUN) && lad->lad_advance_lock) {
again:
rc = lfsck_ibits_lock(env, lfsck, obj, &lh,
if (rc != 0)
GOTO(stop, rc);
- rc = dt_trans_start(env, dev, handle);
+ rc = dt_trans_start_local(env, dev, handle);
if (rc != 0)
GOTO(stop, rc);
dtlocked = true;
}
- rc = lfsck_namespace_check_exist(env, dir, obj, lnr->lnr_name);
- if (rc != 0)
- GOTO(stop, rc);
-
rc = lfsck_links_read(env, obj, &ldata);
if (unlikely(rc == -ENOENT)) {
if (handle != NULL) {
type = LNIT_BAD_TYPE;
}
- goto record;
+ goto stop;
}
- ns->ln_flags |= LF_INCONSISTENT;
-
/* If the name entry hash does not match the slave striped
* directory, and the name entry does not match also, then
* it is quite possible that name entry is corrupted. */
if (!lfsck_is_valid_slave_name_entry(env, lnr->lnr_lmv,
lnr->lnr_name, lnr->lnr_namelen)) {
+ ns->ln_flags |= LF_INCONSISTENT;
type = LNIT_BAD_DIRENT;
GOTO(stop, rc = 0);
* not recognize the name entry, then it is quite possible
* that the name entry is corrupted. */
if ((lfsck_object_type(obj) & S_IFMT) != lnr->lnr_type) {
+ ns->ln_flags |= LF_INCONSISTENT;
type = LNIT_BAD_DIRENT;
GOTO(stop, rc = 0);
type = LNIT_BAD_TYPE;
count = 1;
- ns->ln_flags |= LF_INCONSISTENT;
/* The magic crashed, we are not sure whether there are more
* corrupt data in the linkea, so remove all linkea entries. */
remove = true;
type = LNIT_BAD_TYPE;
count = 1;
- ns->ln_flags |= LF_UPGRADE;
remove = false;
newdata = true;
nodata:
if (bk->lb_param & LPF_DRYRUN) {
+ if (rc == -ENODATA)
+ ns->ln_flags |= LF_UPGRADE;
+ else
+ ns->ln_flags |= LF_INCONSISTENT;
ns->ln_linkea_repaired++;
repaired = true;
log = true;
- goto record;
+ goto stop;
+ }
+
+ if (!lustre_handle_is_used(&lh)) {
+ remove = false;
+ newdata = false;
+ type = LNIT_NONE;
+
+ goto again;
+ }
+
+ LASSERT(handle != NULL);
+
+ if (dir == NULL) {
+ dir = lfsck_assistant_object_load(env, lfsck, lso);
+ if (IS_ERR(dir)) {
+ rc = PTR_ERR(dir);
+
+ GOTO(stop, rc == -ENOENT ? 0 : rc);
+ }
}
- if (!lustre_handle_is_used(&lh))
- goto again;
+ rc = lfsck_namespace_check_exist(env, dir, obj, lnr->lnr_name);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ bad_linkea = true;
+ if (!remove && newdata)
+ ns->ln_flags |= LF_UPGRADE;
+ else if (remove || !(ns->ln_flags & LF_UPGRADE))
+ ns->ln_flags |= LF_INCONSISTENT;
if (remove) {
LASSERT(newdata);
- rc = dt_xattr_del(env, obj, XATTR_NAME_LINK, handle,
- BYPASS_CAPA);
- if (rc != 0)
+ rc = dt_xattr_del(env, obj, XATTR_NAME_LINK, handle);
+ if (rc != 0 && rc != -ENOENT && rc != -ENODATA)
GOTO(stop, rc);
}
}
rc = linkea_add_buf(&ldata, cname, pfid);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = lfsck_links_write(env, obj, &ldata, handle);
- if (unlikely(rc == -ENOSPC) &&
- S_ISREG(lfsck_object_type(obj)) && !dt_object_remote(obj)) {
- if (handle != NULL) {
- LASSERT(dt_write_locked(env, obj));
-
- dt_write_unlock(env, obj);
- dtlocked = false;
-
- dt_trans_stop(env, dev, handle);
- handle = NULL;
-
- lfsck_ibits_unlock(&lh, LCK_EX);
- }
-
- rc = lfsck_namespace_trace_update(env, com,
- &lnr->lnr_fid, LNTF_SKIP_NLINK, true);
- if (rc != 0)
- /* If we cannot record this object in the
- * LFSCK tracing, we have to mark the LFSCK
- * as LF_INCOMPLETE, then the LFSCK will
- * skip nlink attribute verification for
- * all objects. */
- ns->ln_flags |= LF_INCOMPLETE;
-
- GOTO(out, rc = 0);
- }
-
+ if (rc == 0)
+ rc = lfsck_links_write(env, obj, &ldata, handle);
if (rc != 0)
GOTO(stop, rc);
GOTO(stop, rc);
}
-record:
- LASSERT(count > 0);
-
- rc = dt_attr_get(env, obj, la, BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- if ((count == 1 && la->la_nlink == 1) ||
- S_ISDIR(lfsck_object_type(obj)))
- /* Usually, it is for single linked object or dir, do nothing.*/
- GOTO(stop, rc);
-
- /* Following modification will be in another transaction. */
- if (handle != NULL) {
- dt_write_unlock(env, obj);
- dtlocked = false;
-
- dt_trans_stop(env, dev, handle);
- handle = NULL;
-
- lfsck_ibits_unlock(&lh, LCK_EX);
- }
-
- ns->ln_mul_linked_checked++;
- rc = lfsck_namespace_trace_update(env, com, &lnr->lnr_fid,
- LNTF_CHECK_LINKEA, true);
-
- GOTO(out, rc);
-
stop:
if (dtlocked)
dt_write_unlock(env, obj);
ns->ln_flags |= LF_INCONSISTENT;
log = false;
+ if (dir == NULL) {
+ dir = lfsck_assistant_object_load(env, lfsck, lso);
+ if (IS_ERR(dir)) {
+ rc = PTR_ERR(dir);
+
+ GOTO(trace, rc == -ENOENT ? 0 : rc);
+ }
+ }
+
rc = lfsck_namespace_repair_bad_name_hash(env, com, dir,
lnr->lnr_lmv, lnr->lnr_name);
- if (rc >= 0)
+ if (rc == 0)
bad_hash = true;
}
if (rc >= 0) {
+ if (type != LNIT_NONE && dir == NULL) {
+ dir = lfsck_assistant_object_load(env, lfsck, lso);
+ if (IS_ERR(dir)) {
+ rc = PTR_ERR(dir);
+
+ GOTO(trace, rc == -ENOENT ? 0 : rc);
+ }
+ }
+
switch (type) {
case LNIT_BAD_TYPE:
log = false;
default:
break;
}
+
+ if (obj != NULL && count == 1 &&
+ S_ISREG(lfsck_object_type(obj)))
+ dt_attr_get(env, obj, la);
}
+trace:
down_write(&com->lc_sem);
if (rc < 0) {
CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant fail to handle "
"the entry: "DFID", parent "DFID", name %.*s: rc = %d\n",
- lfsck_lfsck2name(lfsck), PFID(&lnr->lnr_fid),
- PFID(lfsck_dto2fid(lnr->lnr_obj)),
+ lfsck_lfsck2name(lfsck), PFID(&lnr->lnr_fid), PFID(pfid),
lnr->lnr_namelen, lnr->lnr_name, rc);
lfsck_namespace_record_failure(env, lfsck, ns);
if ((rc == -ENOTCONN || rc == -ESHUTDOWN || rc == -EREMCHG ||
rc == -ETIMEDOUT || rc == -EHOSTDOWN ||
rc == -EHOSTUNREACH || rc == -EINPROGRESS) &&
- dev != NULL && dev != lfsck->li_next)
+ dev != NULL && dev != lfsck->li_bottom)
lfsck_lad_set_bitmap(env, com, idx);
if (!(bk->lb_param & LPF_FAILOUT))
rc = 0;
} else {
- if (log)
- CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant "
- "repaired the entry: "DFID", parent "DFID
- ", name %.*s\n", lfsck_lfsck2name(lfsck),
- PFID(&lnr->lnr_fid),
- PFID(lfsck_dto2fid(lnr->lnr_obj)),
- lnr->lnr_namelen, lnr->lnr_name);
-
if (repaired) {
ns->ln_items_repaired++;
+ if (log)
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant "
+ "repaired the entry: "DFID", parent "DFID
+ ", name %.*s, type %d\n",
+ lfsck_lfsck2name(lfsck),
+ PFID(&lnr->lnr_fid), PFID(pfid),
+ lnr->lnr_namelen, lnr->lnr_name, type);
switch (type) {
case LNIT_DANGLING:
ns->ln_name_hash_repaired++;
/* Not count repeatedly. */
- if (!repaired)
+ if (!repaired) {
ns->ln_items_repaired++;
+ if (log)
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK "
+ "assistant repaired the entry: "
+ DFID", parent "DFID
+ ", name %.*s\n",
+ lfsck_lfsck2name(lfsck),
+ PFID(&lnr->lnr_fid), PFID(pfid),
+ lnr->lnr_namelen, lnr->lnr_name);
+ }
if (bk->lb_param & LPF_DRYRUN &&
lfsck_pos_is_zero(&ns->ln_pos_first_inconsistent))
false);
}
-
rc = 0;
}
+
+ if (count > 1 || la->la_nlink > 1)
+ ns->ln_mul_linked_checked++;
+
up_write(&com->lc_sem);
if (obj != NULL && !IS_ERR(obj))
lfsck_object_put(env, obj);
+ if (dir != NULL && !IS_ERR(dir))
+ lfsck_object_put(env, dir);
+
+ lad->lad_advance_lock = bad_linkea;
+
return rc;
}
struct lu_fid *key = &info->lti_fid;
struct lu_attr *la = &info->lti_la;
struct lfsck_instance *lfsck = com->lc_lfsck;
- struct dt_object *obj = com->lc_obj;
+ struct dt_object *obj;
struct dt_device *dev = lfsck->li_bottom;
struct dt_object *child = NULL;
struct thandle *th = NULL;
+ int idx;
int rc = 0;
__u8 flags = 0;
bool exist = false;
LASSERT(dt_object_exists(child));
LASSERT(!dt_object_remote(child));
+ idx = lfsck_sub_trace_file_fid2idx(&ent->lde_fid);
+ obj = com->lc_sub_trace_objs[idx].lsto_obj;
fid_cpu_to_be(key, &ent->lde_fid);
rc = dt_lookup(env, obj, (struct dt_rec *)&flags,
- (const struct dt_key *)key, BYPASS_CAPA);
+ (const struct dt_key *)key);
if (rc == 0) {
exist = true;
flags |= LNTF_CHECK_ORPHAN;
GOTO(stop, rc);
/* b1. remove name entry from backend /lost+found */
- rc = dt_delete(env, parent, (const struct dt_key *)ent->lde_name, th,
- BYPASS_CAPA);
+ rc = dt_delete(env, parent, (const struct dt_key *)ent->lde_name, th);
if (rc != 0)
GOTO(stop, rc);
if (exist) {
/* a3. remove child's FID from the LFSCK trace file. */
- rc = dt_delete(env, obj, (const struct dt_key *)key, th,
- BYPASS_CAPA);
+ rc = dt_delete(env, obj, (const struct dt_key *)key, th);
if (rc != 0)
GOTO(stop, rc);
} else {
/* b4. set child's ctime as 1 */
- rc = dt_attr_set(env, child, la, th, BYPASS_CAPA);
+ rc = dt_attr_set(env, child, la, th);
if (rc != 0)
GOTO(stop, rc);
}
/* b5. insert child's FID into the LFSCK trace file. */
rc = dt_insert(env, obj, (const struct dt_rec *)&flags,
- (const struct dt_key *)key, th, BYPASS_CAPA, 1);
+ (const struct dt_key *)key, th);
GOTO(stop, rc = (rc == 0 ? 1 : rc));
dt_trans_stop(env, dev, th);
out:
- lu_object_put(env, &child->do_lu);
+ lfsck_object_put(env, child);
return rc;
}
struct lfsck_instance *lfsck = com->lc_lfsck;
struct ptlrpc_thread *thread = &lfsck->li_thread;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
- struct dt_device *dev = lfsck->li_bottom;
struct lfsck_namespace *ns = com->lc_file_ram;
struct dt_object *parent;
const struct dt_it_ops *iops;
struct dt_it *di;
- struct seq_server_site *ss =
- lu_site2seq(dev->dd_lu_dev.ld_site);
+ struct seq_server_site *ss = lfsck_dev_site(lfsck);
__u64 cookie;
+ __u32 idx = lfsck_dev_idx(lfsck);
int rc = 0;
__u16 type;
ENTRY;
- parent = lfsck_object_find_by_dev(env, dev, &LU_BACKEND_LPF_FID);
+ parent = lfsck_object_find_by_dev(env, lfsck->li_bottom,
+ &LU_BACKEND_LPF_FID);
if (IS_ERR(parent)) {
CERROR("%s: fail to find backend /lost+found: rc = %ld\n",
lfsck_lfsck2name(lfsck), PTR_ERR(parent));
com->lc_new_scanned = 0;
iops = &parent->do_index_ops->dio_it;
- di = iops->init(env, parent, LUDA_64BITHASH | LUDA_TYPE, BYPASS_CAPA);
+ di = iops->init(env, parent, LUDA_64BITHASH | LUDA_TYPE);
if (IS_ERR(di))
GOTO(out, rc = PTR_ERR(di));
rc = 0;
while (rc == 0) {
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY3) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
-
- if (unlikely(!thread_is_running(thread)))
- break;
- }
+ if (CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_DELAY3, cfs_fail_val) &&
+ unlikely(!thread_is_running(thread)))
+ break;
rc = iops->rec(env, di, (struct dt_rec *)ent,
LUDA_64BITHASH | LUDA_TYPE);
fid_seq(&ent->lde_fid), range);
if (rc != 0)
goto skip;
- } else if (lfsck_dev_idx(dev) != 0) {
+ } else if (idx != 0) {
/* If the returned FID is IGIF, then there are three
* possible cases:
*
"in the backend /lost+found on the MDT %04x, "
"to be safe, skip it.\n",
lfsck_lfsck2name(lfsck), ent->lde_namelen,
- ent->lde_name, PFID(&ent->lde_fid),
- lfsck_dev_idx(dev));
+ ent->lde_name, PFID(&ent->lde_fid), idx);
goto skip;
}
CDEBUG(D_LFSCK, "%s: stop to scan backend /lost+found: rc = %d\n",
lfsck_lfsck2name(lfsck), rc);
- lu_object_put(env, &parent->do_lu);
+ lfsck_object_put(env, parent);
}
/**
(struct lu_dirent *)info->lti_key;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct ptlrpc_thread *thread = &lfsck->li_thread;
+ struct lfsck_assistant_object *lso = NULL;
struct lfsck_namespace_req *lnr;
struct lfsck_assistant_req *lar;
int rc;
if (name_is_dot_or_dotdot(ent->lde_name, ent->lde_namelen))
goto next;
- lnr = lfsck_namespace_assistant_req_init(lfsck, ent, type);
+ if (lso == NULL) {
+ lso = lfsck_assistant_object_init(env,
+ lfsck_dto2fid(dir), NULL,
+ lfsck->li_pos_current.lp_oit_cookie, true);
+ if (IS_ERR(lso)) {
+ if (bk->lb_param & LPF_FAILOUT)
+ GOTO(out, rc = PTR_ERR(lso));
+
+ lso = NULL;
+ goto next;
+ }
+ }
+
+ lnr = lfsck_namespace_assistant_req_init(lfsck, lso, ent, type);
if (IS_ERR(lnr)) {
if (bk->lb_param & LPF_FAILOUT)
GOTO(out, rc = PTR_ERR(lnr));
} while (rc == 0);
out:
+ if (lso != NULL && !IS_ERR(lso))
+ lfsck_assistant_object_put(env, lso);
+
lfsck_close_dir(env, lfsck, rc);
if (rc <= 0)
RETURN(rc);
RETURN(rc == 0 ? 1 : rc);
}
-static int lfsck_namespace_assistant_handler_p2(const struct lu_env *env,
- struct lfsck_component *com)
+static int
+lfsck_namespace_double_scan_one_trace_file(const struct lu_env *env,
+ struct lfsck_component *com,
+ struct dt_object *obj, bool first)
{
struct lfsck_instance *lfsck = com->lc_lfsck;
struct ptlrpc_thread *thread = &lfsck->li_thread;
struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
struct lfsck_namespace *ns = com->lc_file_ram;
- struct dt_object *obj = com->lc_obj;
const struct dt_it_ops *iops = &obj->do_index_ops->dio_it;
struct dt_object *target;
struct dt_it *di;
__u8 flags = 0;
ENTRY;
- while (!list_empty(&lfsck->li_list_lmv)) {
- struct lfsck_lmv_unit *llu;
-
- spin_lock(&lfsck->li_lock);
- llu = list_entry(lfsck->li_list_lmv.next,
- struct lfsck_lmv_unit, llu_link);
- list_del_init(&llu->llu_link);
- spin_unlock(&lfsck->li_lock);
-
- rc = lfsck_namespace_rescan_striped_dir(env, com, llu);
- if (rc <= 0)
- RETURN(rc);
- }
-
- CDEBUG(D_LFSCK, "%s: namespace LFSCK phase2 scan start\n",
- lfsck_lfsck2name(lfsck));
-
- lfsck_namespace_scan_local_lpf(env, com);
-
- com->lc_new_checked = 0;
- com->lc_new_scanned = 0;
- com->lc_time_last_checkpoint = cfs_time_current();
- com->lc_time_next_checkpoint = com->lc_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
-
- di = iops->init(env, obj, 0, BYPASS_CAPA);
+ di = iops->init(env, obj, 0);
if (IS_ERR(di))
RETURN(PTR_ERR(di));
- fid_cpu_to_be(&fid, &ns->ln_fid_latest_scanned_phase2);
+ if (first)
+ fid_cpu_to_be(&fid, &ns->ln_fid_latest_scanned_phase2);
+ else
+ fid_zero(&fid);
rc = iops->get(env, di, (const struct dt_key *)&fid);
if (rc < 0)
GOTO(fini, rc);
- /* Skip the start one, which either has been processed or non-exist. */
- rc = iops->next(env, di);
- if (rc != 0)
- GOTO(put, rc);
+ if (first) {
+ /* The start one either has been processed or does not exist,
+ * skip it. */
+ rc = iops->next(env, di);
+ if (rc != 0)
+ GOTO(put, rc);
+ }
do {
- if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_DELAY3) &&
- cfs_fail_val > 0) {
- struct l_wait_info lwi;
-
- lwi = LWI_TIMEOUT(cfs_time_seconds(cfs_fail_val),
- NULL, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
-
- if (unlikely(!thread_is_running(thread)))
- GOTO(put, rc = 0);
- }
+ if (CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_DELAY3, cfs_fail_val) &&
+ unlikely(!thread_is_running(thread)))
+ GOTO(put, rc = 0);
key = iops->key(env, di);
+ if (IS_ERR(key)) {
+ rc = PTR_ERR(key);
+ if (rc == -ENOENT)
+ GOTO(put, rc = 1);
+
+ goto checkpoint;
+ }
+
fid_be_to_cpu(&fid, (const struct lu_fid *)key);
if (!fid_is_sane(&fid)) {
rc = 0;
goto checkpoint;
}
- target = lfsck_object_find_by_dev(env, lfsck->li_bottom, &fid);
+ target = lfsck_object_find_bottom(env, lfsck, &fid);
if (IS_ERR(target)) {
rc = PTR_ERR(target);
goto checkpoint;
down_write(&com->lc_sem);
com->lc_new_checked++;
com->lc_new_scanned++;
- ns->ln_fid_latest_scanned_phase2 = fid;
+ if (rc >= 0)
+ ns->ln_fid_latest_scanned_phase2 = fid;
+
if (rc > 0)
ns->ln_objs_repaired_phase2++;
else if (rc < 0)
if (rc < 0 && bk->lb_param & LPF_FAILOUT)
GOTO(put, rc);
- if (unlikely(cfs_time_beforeq(com->lc_time_next_checkpoint,
- cfs_time_current())) &&
+ if (unlikely(com->lc_time_next_checkpoint <=
+ ktime_get_seconds()) &&
com->lc_new_checked != 0) {
down_write(&com->lc_sem);
- ns->ln_run_time_phase2 +=
- cfs_duration_sec(cfs_time_current() +
- HALF_SEC - com->lc_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
+ ns->ln_run_time_phase2 += ktime_get_seconds() -
+ com->lc_time_last_checkpoint;
+ ns->ln_time_last_checkpoint = ktime_get_real_seconds();
ns->ln_objs_checked_phase2 += com->lc_new_checked;
com->lc_new_checked = 0;
- rc = lfsck_namespace_store(env, com, false);
+ lfsck_namespace_store(env, com);
up_write(&com->lc_sem);
- if (rc != 0)
- GOTO(put, rc);
- com->lc_time_last_checkpoint = cfs_time_current();
+ com->lc_time_last_checkpoint = ktime_get_seconds();
com->lc_time_next_checkpoint =
com->lc_time_last_checkpoint +
- cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
+ LFSCK_CHECKPOINT_INTERVAL;
}
lfsck_control_speed_by_self(com);
fini:
iops->fini(env, di);
- CDEBUG(D_LFSCK, "%s: namespace LFSCK phase2 scan stop: rc = %d\n",
- lfsck_lfsck2name(lfsck), rc);
-
return rc;
}
+static int lfsck_namespace_assistant_handler_p2(const struct lu_env *env,
+ struct lfsck_component *com)
+{
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct lfsck_namespace *ns = com->lc_file_ram;
+ int rc;
+ int i;
+ ENTRY;
+
+ while (!list_empty(&lfsck->li_list_lmv)) {
+ struct lfsck_lmv_unit *llu;
+
+ spin_lock(&lfsck->li_lock);
+ llu = list_entry(lfsck->li_list_lmv.next,
+ struct lfsck_lmv_unit, llu_link);
+ list_del_init(&llu->llu_link);
+ spin_unlock(&lfsck->li_lock);
+
+ rc = lfsck_namespace_rescan_striped_dir(env, com, llu);
+ if (rc <= 0)
+ RETURN(rc);
+ }
+
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK phase2 scan start\n",
+ lfsck_lfsck2name(lfsck));
+
+ lfsck_namespace_scan_local_lpf(env, com);
+
+ com->lc_new_checked = 0;
+ com->lc_new_scanned = 0;
+ com->lc_time_last_checkpoint = ktime_get_seconds();
+ com->lc_time_next_checkpoint = com->lc_time_last_checkpoint +
+ LFSCK_CHECKPOINT_INTERVAL;
+
+ i = lfsck_sub_trace_file_fid2idx(&ns->ln_fid_latest_scanned_phase2);
+ rc = lfsck_namespace_double_scan_one_trace_file(env, com,
+ com->lc_sub_trace_objs[i].lsto_obj, true);
+ while (rc > 0 && ++i < LFSCK_STF_COUNT)
+ rc = lfsck_namespace_double_scan_one_trace_file(env, com,
+ com->lc_sub_trace_objs[i].lsto_obj, false);
+
+ CDEBUG(D_LFSCK, "%s: namespace LFSCK phase2 scan stop at the No. %d "
+ "trace file: rc = %d\n", lfsck_lfsck2name(lfsck), i, rc);
+
+ RETURN(rc);
+}
+
static void lfsck_namespace_assistant_fill_pos(const struct lu_env *env,
struct lfsck_component *com,
struct lfsck_position *pos)
struct lfsck_assistant_data *lad = com->lc_data;
struct lfsck_namespace_req *lnr;
+ if (((struct lfsck_namespace *)(com->lc_file_ram))->ln_status !=
+ LS_SCANNING_PHASE1)
+ return;
+
if (list_empty(&lad->lad_req_list))
return;
lnr = list_entry(lad->lad_req_list.next,
struct lfsck_namespace_req,
lnr_lar.lar_list);
- pos->lp_oit_cookie = lnr->lnr_oit_cookie;
+ pos->lp_oit_cookie = lnr->lnr_lar.lar_parent->lso_oit_cookie;
pos->lp_dir_cookie = lnr->lnr_dir_cookie - 1;
- pos->lp_dir_parent = *lfsck_dto2fid(lnr->lnr_obj);
+ pos->lp_dir_parent = lnr->lnr_lar.lar_parent->lso_fid;
}
static int lfsck_namespace_double_scan_result(const struct lu_env *env,
struct lfsck_namespace *ns = com->lc_file_ram;
down_write(&com->lc_sem);
- ns->ln_run_time_phase2 += cfs_duration_sec(cfs_time_current() +
- HALF_SEC - lfsck->li_time_last_checkpoint);
- ns->ln_time_last_checkpoint = cfs_time_current_sec();
+ ns->ln_run_time_phase2 += ktime_get_seconds() -
+ com->lc_time_last_checkpoint;
+ ns->ln_time_last_checkpoint = ktime_get_real_seconds();
ns->ln_objs_checked_phase2 += com->lc_new_checked;
com->lc_new_checked = 0;
ns->ln_status = LS_PARTIAL;
else
ns->ln_status = LS_COMPLETED;
+ ns->ln_flags &= ~LF_SCANNED_ONCE;
if (!(lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN))
- ns->ln_flags &= ~(LF_SCANNED_ONCE | LF_INCONSISTENT);
+ ns->ln_flags &= ~LF_INCONSISTENT;
ns->ln_time_last_complete = ns->ln_time_last_checkpoint;
ns->ln_success_count++;
} else if (rc == 0) {
ns->ln_status = LS_FAILED;
}
- rc = lfsck_namespace_store(env, com, false);
+ rc = lfsck_namespace_store(env, com);
up_write(&com->lc_sem);
return rc;
struct ptlrpc_request *req,
void *args, int rc)
{
+ if (rc == 0) {
+ struct lfsck_async_interpret_args *laia = args;
+ struct lfsck_tgt_desc *ltd = laia->laia_ltd;
+
+ ltd->ltd_synced_failures = 1;
+ }
+
return 0;
}
struct lfsck_tgt_descs *ltds = &lfsck->li_mdt_descs;
struct lfsck_tgt_desc *ltd;
struct ptlrpc_request_set *set;
+ __u32 idx;
int rc = 0;
ENTRY;
+ if (!test_bit(LAD_INCOMPLETE, &lad->lad_flags))
+ RETURN_EXIT;
+
set = ptlrpc_prep_set();
if (set == NULL)
GOTO(out, rc = -ENOMEM);
memset(laia, 0, sizeof(*laia));
lad->lad_touch_gen++;
- spin_lock(<ds->ltd_lock);
- while (!list_empty(&lad->lad_mdt_list)) {
- ltd = list_entry(lad->lad_mdt_list.next,
- struct lfsck_tgt_desc,
- ltd_namespace_list);
- if (ltd->ltd_namespace_gen == lad->lad_touch_gen)
- break;
-
- ltd->ltd_namespace_gen = lad->lad_touch_gen;
- list_move_tail(<d->ltd_namespace_list,
- &lad->lad_mdt_list);
- if (!lad->lad_incomplete ||
- !cfs_bitmap_check(lad->lad_bitmap, ltd->ltd_index)) {
- ltd->ltd_namespace_failed = 0;
+ down_read(<ds->ltd_rw_sem);
+ cfs_foreach_bit(lad->lad_bitmap, idx) {
+ ltd = lfsck_ltd2tgt(ltds, idx);
+ if (unlikely(!ltd))
continue;
- }
- ltd->ltd_namespace_failed = 1;
- spin_unlock(<ds->ltd_lock);
+ laia->laia_ltd = ltd;
rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
lfsck_namespace_assistant_sync_failures_interpret,
laia, LFSCK_NOTIFY);
CDEBUG(D_LFSCK, "%s: namespace LFSCK assistant fail "
"to sync failure with MDT %x: rc = %d\n",
lfsck_lfsck2name(lfsck), ltd->ltd_index, rc);
-
- spin_lock(<ds->ltd_lock);
}
- spin_unlock(<ds->ltd_lock);
+ up_read(<ds->ltd_rw_sem);
- rc = ptlrpc_set_wait(set);
+ rc = ptlrpc_set_wait(env, set);
ptlrpc_set_destroy(set);
GOTO(out, rc);
* entries, then re-generate the linkEA with the given information.
*
* \param[in] env pointer to the thread context
- * \param[in] dev pointer to the dt_device
* \param[in] obj pointer to the dt_object to be handled
* \param[in] cname the name for the child in the parent directory
* \param[in] pfid the parent directory's FID for the linkEA
* \retval 0 for success
* \retval negative error number on failure
*/
-int lfsck_verify_linkea(const struct lu_env *env, struct dt_device *dev,
- struct dt_object *obj, const struct lu_name *cname,
- const struct lu_fid *pfid)
+int lfsck_verify_linkea(const struct lu_env *env, struct dt_object *obj,
+ const struct lu_name *cname, const struct lu_fid *pfid)
{
- struct linkea_data ldata = { 0 };
+ struct dt_device *dev = lfsck_obj2dev(obj);
+ struct linkea_data ldata = { NULL };
struct lu_buf linkea_buf;
struct thandle *th;
int rc;
LASSERT(S_ISDIR(lfsck_object_type(obj)));
- rc = lfsck_links_read(env, obj, &ldata);
+ rc = lfsck_links_read_with_rec(env, obj, &ldata);
if (rc == -ENODATA) {
dirty = true;
} else if (rc == 0) {
if (!dirty)
RETURN(rc);
- rc = linkea_data_new(&ldata, &lfsck_env_info(env)->lti_linkea_buf);
- if (rc != 0)
- RETURN(rc);
-
- rc = linkea_add_buf(&ldata, cname, pfid);
+ rc = linkea_links_new(&ldata, &lfsck_env_info(env)->lti_linkea_buf,
+ cname, pfid);
if (rc != 0)
RETURN(rc);
dt_write_lock(env, obj, 0);
rc = dt_xattr_set(env, obj, &linkea_buf,
- XATTR_NAME_LINK, fl, th, BYPASS_CAPA);
+ XATTR_NAME_LINK, fl, th);
dt_write_unlock(env, obj);
GOTO(stop, rc);
char *name, struct lu_fid *pfid)
{
struct lu_name *cname = &lfsck_env_info(env)->lti_name;
- struct linkea_data ldata = { 0 };
+ struct linkea_data ldata = { NULL };
int rc;
- rc = lfsck_links_read(env, obj, &ldata);
- if (rc != 0)
+ rc = lfsck_links_read_with_rec(env, obj, &ldata);
+ if (rc)
return rc;
linkea_first_entry(&ldata);
- if (ldata.ld_lee == NULL)
- return -ENODATA;
-
linkea_entry_unpack(ldata.ld_lee, &ldata.ld_reclen, cname, pfid);
+ if (!linkea_entry_is_valid(&ldata, cname, pfid))
+ return -EINVAL;
+
/* To guarantee the 'name' is terminated with '0'. */
memcpy(name, cname->ln_name, cname->ln_namelen);
name[cname->ln_namelen] = 0;
}
/**
- * Remove the name entry from the parent directory.
- *
- * No need to care about the object referenced by the name entry,
- * either the name entry is invalid or redundant, or the referenced
- * object has been processed has been or will be handled by others.
- *
- * \param[in] env pointer to the thread context
- * \param[in] lfsck pointer to the lfsck instance
- * \param[in] parent pointer to the lost+found object
- * \param[in] name the name for the name entry to be removed
- * \param[in] type the type for the name entry to be removed
- *
- * \retval 0 for success
- * \retval negative error number on failure
- */
-int lfsck_remove_name_entry(const struct lu_env *env,
- struct lfsck_instance *lfsck,
- struct dt_object *parent,
- const char *name, __u32 type)
-{
- struct dt_device *dev = lfsck->li_next;
- struct thandle *th;
- struct lustre_handle lh = { 0 };
- int rc;
- ENTRY;
-
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
- if (rc != 0)
- RETURN(rc);
-
- th = dt_trans_create(env, dev);
- if (IS_ERR(th))
- GOTO(unlock, rc = PTR_ERR(th));
-
- rc = dt_declare_delete(env, parent, (const struct dt_key *)name, th);
- if (rc != 0)
- GOTO(stop, rc);
-
- if (S_ISDIR(type)) {
- rc = dt_declare_ref_del(env, parent, th);
- if (rc != 0)
- GOTO(stop, rc);
- }
-
- rc = dt_trans_start(env, dev, th);
- if (rc != 0)
- GOTO(stop, rc);
-
- rc = dt_delete(env, parent, (const struct dt_key *)name, th,
- BYPASS_CAPA);
- if (rc != 0)
- GOTO(stop, rc);
-
- if (S_ISDIR(type)) {
- dt_write_lock(env, parent, 0);
- rc = dt_ref_del(env, parent, th);
- dt_write_unlock(env, parent);
- }
-
- GOTO(stop, rc);
-
-stop:
- dt_trans_stop(env, dev, th);
-
-unlock:
- lfsck_ibits_unlock(&lh, LCK_EX);
-
- CDEBUG(D_LFSCK, "%s: remove name entry "DFID"/%s "
- "with type %o: rc = %d\n", lfsck_lfsck2name(lfsck),
- PFID(lfsck_dto2fid(parent)), name, type, rc);
-
- return rc;
-}
-
-/**
* Update the object's name entry with the given FID.
*
* \param[in] env pointer to the thread context
* \param[in] lfsck pointer to the lfsck instance
- * \param[in] parent pointer to the parent directory that holds
+ * \param[in] dir pointer to the directory that holds
* the name entry
* \param[in] name the name for the entry to be updated
- * \param[in] pfid the new PFID for the name entry
+ * \param[in] fid the new FID for the name entry referenced
* \param[in] type the type for the name entry to be updated
*
* \retval 0 for success
*/
int lfsck_update_name_entry(const struct lu_env *env,
struct lfsck_instance *lfsck,
- struct dt_object *parent, const char *name,
- const struct lu_fid *pfid, __u32 type)
+ struct dt_object *dir, const char *name,
+ const struct lu_fid *fid, __u32 type)
{
- struct dt_insert_rec *rec = &lfsck_env_info(env)->lti_dt_rec;
- struct dt_device *dev = lfsck->li_next;
- struct lustre_handle lh = { 0 };
- struct thandle *th;
- int rc;
- bool exists = true;
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct dt_insert_rec *rec = &info->lti_dt_rec;
+ struct lfsck_lock_handle *llh = &info->lti_llh;
+ struct dt_device *dev = lfsck_obj2dev(dir);
+ struct thandle *th;
+ int rc;
+ bool exists = true;
ENTRY;
- rc = lfsck_ibits_lock(env, lfsck, parent, &lh,
- MDS_INODELOCK_UPDATE, LCK_EX);
+ rc = lfsck_lock(env, lfsck, dir, name, llh,
+ MDS_INODELOCK_UPDATE, LCK_PW);
if (rc != 0)
RETURN(rc);
if (IS_ERR(th))
GOTO(unlock, rc = PTR_ERR(th));
- rc = dt_declare_delete(env, parent, (const struct dt_key *)name, th);
+ rc = dt_declare_delete(env, dir, (const struct dt_key *)name, th);
if (rc != 0)
GOTO(stop, rc);
rec->rec_type = type;
- rec->rec_fid = pfid;
- rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
+ rec->rec_fid = fid;
+ rc = dt_declare_insert(env, dir, (const struct dt_rec *)rec,
(const struct dt_key *)name, th);
if (rc != 0)
GOTO(stop, rc);
- rc = dt_declare_ref_add(env, parent, th);
+ rc = dt_declare_ref_add(env, dir, th);
if (rc != 0)
GOTO(stop, rc);
- rc = dt_trans_start(env, dev, th);
+ rc = dt_trans_start_local(env, dev, th);
if (rc != 0)
GOTO(stop, rc);
- rc = dt_delete(env, parent, (const struct dt_key *)name, th,
- BYPASS_CAPA);
+ rc = dt_delete(env, dir, (const struct dt_key *)name, th);
if (rc == -ENOENT) {
exists = false;
rc = 0;
if (rc != 0)
GOTO(stop, rc);
- rc = dt_insert(env, parent, (const struct dt_rec *)rec,
- (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ rc = dt_insert(env, dir, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
if (rc == 0 && S_ISDIR(type) && !exists) {
- dt_write_lock(env, parent, 0);
- rc = dt_ref_add(env, parent, th);
- dt_write_unlock(env, parent);
+ dt_write_lock(env, dir, 0);
+ rc = dt_ref_add(env, dir, th);
+ dt_write_unlock(env, dir);
}
GOTO(stop, rc);
dt_trans_stop(env, dev, th);
unlock:
- lfsck_ibits_unlock(&lh, LCK_EX);
-
+ lfsck_unlock(llh);
CDEBUG(D_LFSCK, "%s: update name entry "DFID"/%s with the FID "DFID
" and the type %o: rc = %d\n", lfsck_lfsck2name(lfsck),
- PFID(lfsck_dto2fid(parent)), name, PFID(pfid), type, rc);
+ PFID(lfsck_dto2fid(dir)), name, PFID(fid), type, rc);
return rc;
}
struct lfsck_namespace *ns;
struct dt_object *root = NULL;
struct dt_object *obj;
+ int i;
int rc;
ENTRY;
com->lc_ops = &lfsck_namespace_ops;
com->lc_data = lfsck_assistant_data_init(
&lfsck_namespace_assistant_ops,
- "lfsck_namespace");
+ LFSCK_NAMESPACE);
if (com->lc_data == NULL)
GOTO(out, rc = -ENOMEM);
if (com->lc_file_disk == NULL)
GOTO(out, rc = -ENOMEM);
+ for (i = 0; i < LFSCK_STF_COUNT; i++)
+ mutex_init(&com->lc_sub_trace_objs[i].lsto_mutex);
+
root = dt_locate(env, lfsck->li_bottom, &lfsck->li_local_root_fid);
if (IS_ERR(root))
GOTO(out, rc = PTR_ERR(root));
GOTO(out, rc = -ENOTDIR);
obj = local_index_find_or_create(env, lfsck->li_los, root,
- lfsck_namespace_name,
+ LFSCK_NAMESPACE,
S_IFREG | S_IRUGO | S_IWUSR,
- &dt_lfsck_features);
+ &dt_lfsck_namespace_features);
if (IS_ERR(obj))
GOTO(out, rc = PTR_ERR(obj));
com->lc_obj = obj;
- rc = obj->do_ops->do_index_try(env, obj, &dt_lfsck_features);
- if (rc != 0)
- GOTO(out, rc);
-
rc = lfsck_namespace_load(env, com);
- if (rc == -ENODATA)
+ if (rc == -ENODATA) {
rc = lfsck_namespace_init(env, com);
- else if (rc < 0)
+ } else if (rc < 0) {
rc = lfsck_namespace_reset(env, com, true);
+ } else {
+ rc = lfsck_load_sub_trace_files(env, com,
+ &dt_lfsck_namespace_features, LFSCK_NAMESPACE, false);
+ if (rc)
+ rc = lfsck_namespace_reset(env, com, true);
+ }
if (rc != 0)
GOTO(out, rc);
out:
if (root != NULL && !IS_ERR(root))
- lu_object_put(env, &root->do_lu);
+ lfsck_object_put(env, root);
if (rc != 0) {
lfsck_component_cleanup(env, com);
CERROR("%s: fail to init namespace LFSCK component: rc = %d\n",
git://git.whamcloud.com / fs / lustre-release.git / blobdiff