* GPL HEADER END
*/
/*
- * Copyright (c) 2014, 2015, Intel Corporation.
+ * Copyright (c) 2014, 2017, Intel Corporation.
*/
/*
* lustre/lfsck/lfsck_striped_dir.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_lib.h>
#include <lustre_net.h>
#include <lustre_lmv.h>
-#include <lustre/lustre_user.h>
#include "lfsck_internal.h"
return rc > 0 ? 0 : rc;
}
-int lfsck_read_stripe_lmv(const struct lu_env *env, struct dt_object *obj,
+/**
+ * Read LMV from bottom object, so it doesn't contain stripe FIDs.
+ *
+ * TODO: test migrating/foreign directory lfsck
+ *
+ * \param[in] env thread env
+ * \param[in] lfsck lfsck instance
+ * \param[in] obj dt object
+ * \param[out] lmv LMV data pointer
+ *
+ * \retval 0 on success
+ * \retval -ENODATA on no LMV, corrupt LMV, dir is dead or foreign
+ * -ev on other failures
+ */
+int lfsck_read_stripe_lmv(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *obj,
struct lmv_mds_md_v1 *lmv)
{
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lu_buf *buf = &info->lti_buf;
+ struct lmv_foreign_md *lfm;
int rc;
+ /* use bottom object to avoid reading in shard FIDs */
+ obj = lfsck_object_find_bottom(env, lfsck, lu_object_fid(&obj->do_lu));
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
+
dt_read_lock(env, obj, 0);
- rc = dt_xattr_get(env, obj, lfsck_buf_get(env, lmv, sizeof(*lmv)),
- XATTR_NAME_LMV);
+ buf->lb_buf = lmv;
+ buf->lb_len = sizeof(*lmv);
+ rc = dt_xattr_get(env, obj, buf, XATTR_NAME_LMV);
+ if (unlikely(rc == -ERANGE)) {
+ buf = &info->lti_big_buf;
+ /* this may be a foreign LMV */
+ rc = dt_xattr_get(env, obj, &LU_BUF_NULL, XATTR_NAME_LMV);
+ if (rc > sizeof(*lmv)) {
+ int rc1;
+
+ lu_buf_check_and_alloc(buf, rc);
+ rc1 = dt_xattr_get(env, obj, buf, XATTR_NAME_LMV);
+ if (rc != rc1)
+ rc = -ENODATA;
+ } else {
+ rc = -ENODATA;
+ }
+ }
dt_read_unlock(env, obj);
- if (rc != sizeof(*lmv))
- return rc > 0 ? -EINVAL : rc;
- lfsck_lmv_header_le_to_cpu(lmv, lmv);
- if ((lmv->lmv_magic == LMV_MAGIC &&
- !(lmv->lmv_hash_type & LMV_HASH_FLAG_MIGRATION)) ||
- (lmv->lmv_magic == LMV_MAGIC_STRIPE &&
- !(lmv->lmv_hash_type & LMV_HASH_FLAG_DEAD)))
- return 0;
+ lfsck_object_put(env, obj);
+
+ if (rc > offsetof(typeof(*lfm), lfm_value) &&
+ *((__u32 *)buf->lb_buf) == LMV_MAGIC_FOREIGN) {
+ __u32 value_len;
+
+ lfm = buf->lb_buf;
+ value_len = le32_to_cpu(lfm->lfm_length);
+ CDEBUG(D_INFO,
+ "foreign LMV EA, magic %x, len %u, type %x, flags %x, for dir "DFID"\n",
+ le32_to_cpu(lfm->lfm_magic), value_len,
+ le32_to_cpu(lfm->lfm_type), le32_to_cpu(lfm->lfm_flags),
+ PFID(lfsck_dto2fid(obj)));
+
+ if (rc != value_len + offsetof(typeof(*lfm), lfm_value))
+ CDEBUG(D_LFSCK,
+ "foreign LMV EA internal size %u does not match EA full size %d for dir "DFID"\n",
+ value_len, rc, PFID(lfsck_dto2fid(obj)));
+
+ /* no further usage/decode of foreign LMV outside */
+ return -ENODATA;
+ }
+
+ if (rc == sizeof(*lmv)) {
+ rc = 0;
+ lfsck_lmv_header_le_to_cpu(lmv, lmv);
+ /* if LMV is corrupt, return -ENODATA */
+ if (lmv->lmv_magic != LMV_MAGIC_V1 &&
+ lmv->lmv_magic != LMV_MAGIC_STRIPE)
+ rc = -ENODATA;
+ } else if (rc >= 0) {
+ /* LMV is corrupt */
+ rc = -ENODATA;
+ }
- return -ENODATA;
+ return rc;
}
/**
* \retval negative error number on failure
*/
int lfsck_namespace_check_name(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
struct dt_object *parent,
struct dt_object *child,
const struct lu_name *cname)
int idx;
int rc;
- rc = lfsck_read_stripe_lmv(env, parent, lmv);
+ rc = lfsck_read_stripe_lmv(env, lfsck, parent, lmv);
if (rc != 0)
RETURN(rc == -ENODATA ? 0 : rc);
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
RETURN(0);
- rc = lfsck_read_stripe_lmv(env, obj, lmv4);
+ rc = lfsck_read_stripe_lmv(env, lfsck, obj, lmv4);
if (rc != 0)
RETURN(rc);
lfsck_lmv_put(env, llmv);
} else {
ns->ln_striped_dirs_repaired++;
+ llmv->ll_counted = 1;
spin_lock(&lfsck->li_lock);
list_add_tail(&llu->llu_link, &lfsck->li_list_lmv);
spin_unlock(&lfsck->li_lock);
if (rc != 0)
GOTO(log, rc);
- rc = lfsck_read_stripe_lmv(env, obj, lmv3);
+ rc = lfsck_read_stripe_lmv(env, lfsck, obj, lmv3);
if (rc == -ENODATA) {
if (!(flags & LEF_SET_LMV_ALL))
GOTO(log, rc);
lmv3->lmv_magic = LMV_MAGIC;
lmv3->lmv_master_mdt_index = pidx;
+ lmv3->lmv_layout_version++;
if (flags & LEF_SET_LMV_ALL) {
rc = lfsck_allow_regenerate_master_lmv(env, com, obj,
__u16 type;
ENTRY;
- rc = lfsck_read_stripe_lmv(env, child, lmv);
+ rc = lfsck_read_stripe_lmv(env, lfsck, child, lmv);
if (rc != 0)
RETURN(rc == -ENODATA ? 1 : rc);
GOTO(out, rc);
}
+ CFS_FAIL_TIMEOUT(OBD_FAIL_LFSCK_ENGINE_DELAY, cfs_fail_val);
+
parent = lfsck_object_find_bottom(env, lfsck, pfid);
if (IS_ERR(parent)) {
rc = lfsck_namespace_trace_update(env, com, cfid,
if (unlikely(!dt_try_as_dir(env, parent)))
GOTO(out, rc = -ENOTDIR);
- rc = lfsck_read_stripe_lmv(env, parent, plmv);
+ rc = lfsck_read_stripe_lmv(env, lfsck, parent, plmv);
if (rc != 0) {
int rc1;
RETURN(rc);
ns->ln_striped_dirs_scanned++;
- ns->ln_striped_dirs_repaired++;
+ if (!llmv->ll_counted)
+ ns->ln_striped_dirs_repaired++;
}
fld_range_set_mdt(range);
const struct lu_fid *cfid = &lslr->lslr_fid;
const struct lu_name *cname;
struct linkea_data ldata = { NULL };
- int len;
int rc1 = 0;
bool repair_linkea = false;
bool repair_lmvea = false;
if (fid_is_zero(cfid))
continue;
- len = snprintf(info->lti_tmpbuf, sizeof(info->lti_tmpbuf),
- DFID":%u", PFID(cfid), i);
- cname = lfsck_name_get_const(env, info->lti_tmpbuf, len);
- memcpy(lnr->lnr_name, info->lti_tmpbuf, len);
-
- obj = lfsck_object_find_bottom_nowait(env, lfsck, cfid);
+ lnr->lnr_fid = *cfid;
+ lnr->lnr_namelen = snprintf(lnr->lnr_name,
+ lnr->lnr_size - sizeof(*lnr),
+ DFID":%u", PFID(cfid), i);
+ cname = lfsck_name_get_const(env, lnr->lnr_name,
+ lnr->lnr_namelen);
+ obj = lfsck_object_find_bottom(env, lfsck, cfid);
if (IS_ERR(obj)) {
if (dir == NULL) {
dir = lfsck_assistant_object_load(env, lfsck,
"%d "DFID" of the striped directory "DFID" with "
"dangling %s/%s, rename %s/%s, llinkea %s/%s, "
"repair_lmvea %s/%s: rc = %d\n", lfsck_lfsck2name(lfsck),
- i, PFID(cfid), PFID(&lnr->lnr_fid),
+ i, PFID(cfid), PFID(pfid),
create ? "yes" : "no", create_repaired ? "yes" : "no",
rename ? "yes" : "no", rename_repaired ? "yes" : "no",
repair_linkea ? "yes" : "no",
dev = ltd->ltd_tgt;
}
- obj = lfsck_object_find_by_dev_nowait(env, dev, &lnr->lnr_fid);
+ obj = lfsck_object_find_by_dev(env, dev, &lnr->lnr_fid);
if (IS_ERR(obj)) {
if (lfsck_is_dead_obj(dir))
RETURN(0);
GOTO(out, rc = 0);
}
- rc = lfsck_read_stripe_lmv(env, obj, lmv);
+ rc = lfsck_read_stripe_lmv(env, lfsck, obj, lmv);
if (unlikely(rc == -ENOENT))
/* It may happen when the remote object has been removed,
* but the local MDT does not aware of that. */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff