* Author: Fan, Yong <fan.yong@intel.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_LFSCK
#include <libcfs/list.h>
#include <lu_object.h>
#include <dt_object.h>
+#include <md_object.h>
+#include <lustre_fld.h>
#include <lustre_lib.h>
#include <lustre_net.h>
#include <lustre_lfsck.h>
struct lfsck_thread_info *info = data;
lu_buf_free(&info->lti_linkea_buf);
+ lu_buf_free(&info->lti_big_buf);
OBD_FREE_PTR(info);
}
LU_KEY_INIT_GENERIC(lfsck);
static CFS_LIST_HEAD(lfsck_instance_list);
+static struct list_head lfsck_ost_orphan_list;
+static struct list_head lfsck_mdt_orphan_list;
static DEFINE_SPINLOCK(lfsck_instance_lock);
-const char *lfsck_status_names[] = {
- "init",
- "scanning-phase1",
- "scanning-phase2",
- "completed",
- "failed",
- "stopped",
- "paused",
- "crashed",
- NULL
+static const char *lfsck_status_names[] = {
+ [LS_INIT] = "init",
+ [LS_SCANNING_PHASE1] = "scanning-phase1",
+ [LS_SCANNING_PHASE2] = "scanning-phase2",
+ [LS_COMPLETED] = "completed",
+ [LS_FAILED] = "failed",
+ [LS_STOPPED] = "stopped",
+ [LS_PAUSED] = "paused",
+ [LS_CRASHED] = "crashed",
+ [LS_PARTIAL] = "partial",
+ [LS_CO_FAILED] = "co-failed",
+ [LS_CO_STOPPED] = "co-stopped",
+ [LS_CO_PAUSED] = "co-paused"
};
const char *lfsck_flags_names[] = {
"scanned-once",
"inconsistent",
"upgrade",
+ "incomplete",
+ "crashed_lastid",
NULL
};
const char *lfsck_param_names[] = {
+ NULL,
"failout",
"dryrun",
+ "all_targets",
+ "broadcast",
+ "orphan",
+ "create_ostobj",
NULL
};
-static inline mdsno_t lfsck_dev_idx(struct dt_device *dev)
+const char *lfsck_status2names(enum lfsck_status status)
+{
+ if (unlikely(status < 0 || status >= LS_MAX))
+ return "unknown";
+
+ return lfsck_status_names[status];
+}
+
+static int lfsck_tgt_descs_init(struct lfsck_tgt_descs *ltds)
{
- return dev->dd_lu_dev.ld_site->ld_seq_site->ss_node_id;
+ spin_lock_init(<ds->ltd_lock);
+ init_rwsem(<ds->ltd_rw_sem);
+ INIT_LIST_HEAD(<ds->ltd_orphan);
+ ltds->ltd_tgts_bitmap = CFS_ALLOCATE_BITMAP(BITS_PER_LONG);
+ if (ltds->ltd_tgts_bitmap == NULL)
+ return -ENOMEM;
+
+ return 0;
}
-static inline void lfsck_component_get(struct lfsck_component *com)
+static void lfsck_tgt_descs_fini(struct lfsck_tgt_descs *ltds)
{
- atomic_inc(&com->lc_ref);
+ struct lfsck_tgt_desc *ltd;
+ struct lfsck_tgt_desc *next;
+ int idx;
+
+ down_write(<ds->ltd_rw_sem);
+
+ list_for_each_entry_safe(ltd, next, <ds->ltd_orphan,
+ ltd_orphan_list) {
+ list_del_init(<d->ltd_orphan_list);
+ lfsck_tgt_put(ltd);
+ }
+
+ if (unlikely(ltds->ltd_tgts_bitmap == NULL)) {
+ up_write(<ds->ltd_rw_sem);
+
+ return;
+ }
+
+ cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
+ ltd = LTD_TGT(ltds, idx);
+ if (likely(ltd != NULL)) {
+ LASSERT(list_empty(<d->ltd_layout_list));
+ LASSERT(list_empty(<d->ltd_layout_phase_list));
+
+ ltds->ltd_tgtnr--;
+ cfs_bitmap_clear(ltds->ltd_tgts_bitmap, idx);
+ LTD_TGT(ltds, idx) = NULL;
+ lfsck_tgt_put(ltd);
+ }
+ }
+
+ LASSERTF(ltds->ltd_tgtnr == 0, "tgt count unmatched: %d\n",
+ ltds->ltd_tgtnr);
+
+ for (idx = 0; idx < TGT_PTRS; idx++) {
+ if (ltds->ltd_tgts_idx[idx] != NULL) {
+ OBD_FREE_PTR(ltds->ltd_tgts_idx[idx]);
+ ltds->ltd_tgts_idx[idx] = NULL;
+ }
+ }
+
+ CFS_FREE_BITMAP(ltds->ltd_tgts_bitmap);
+ ltds->ltd_tgts_bitmap = NULL;
+ up_write(<ds->ltd_rw_sem);
+}
+
+static int __lfsck_add_target(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct lfsck_tgt_desc *ltd,
+ bool for_ost, bool locked)
+{
+ struct lfsck_tgt_descs *ltds;
+ __u32 index = ltd->ltd_index;
+ int rc = 0;
+ ENTRY;
+
+ if (for_ost)
+ ltds = &lfsck->li_ost_descs;
+ else
+ ltds = &lfsck->li_mdt_descs;
+
+ if (!locked)
+ down_write(<ds->ltd_rw_sem);
+
+ LASSERT(ltds->ltd_tgts_bitmap != NULL);
+
+ if (index >= ltds->ltd_tgts_bitmap->size) {
+ __u32 newsize = max((__u32)ltds->ltd_tgts_bitmap->size,
+ (__u32)BITS_PER_LONG);
+ cfs_bitmap_t *old_bitmap = ltds->ltd_tgts_bitmap;
+ cfs_bitmap_t *new_bitmap;
+
+ while (newsize < index + 1)
+ newsize <<= 1;
+
+ new_bitmap = CFS_ALLOCATE_BITMAP(newsize);
+ if (new_bitmap == NULL)
+ GOTO(unlock, rc = -ENOMEM);
+
+ if (ltds->ltd_tgtnr > 0)
+ cfs_bitmap_copy(new_bitmap, old_bitmap);
+ ltds->ltd_tgts_bitmap = new_bitmap;
+ CFS_FREE_BITMAP(old_bitmap);
+ }
+
+ if (cfs_bitmap_check(ltds->ltd_tgts_bitmap, index)) {
+ CERROR("%s: the device %s (%u) is registered already\n",
+ lfsck_lfsck2name(lfsck),
+ ltd->ltd_tgt->dd_lu_dev.ld_obd->obd_name, index);
+ GOTO(unlock, rc = -EEXIST);
+ }
+
+ if (ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK] == NULL) {
+ OBD_ALLOC_PTR(ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK]);
+ if (ltds->ltd_tgts_idx[index / TGT_PTRS_PER_BLOCK] == NULL)
+ GOTO(unlock, rc = -ENOMEM);
+ }
+
+ LTD_TGT(ltds, index) = ltd;
+ cfs_bitmap_set(ltds->ltd_tgts_bitmap, index);
+ ltds->ltd_tgtnr++;
+
+ GOTO(unlock, rc = 0);
+
+unlock:
+ if (!locked)
+ up_write(<ds->ltd_rw_sem);
+
+ return rc;
}
-static inline void lfsck_component_put(const struct lu_env *env,
- struct lfsck_component *com)
+static int lfsck_add_target_from_orphan(const struct lu_env *env,
+ struct lfsck_instance *lfsck)
{
- if (atomic_dec_and_test(&com->lc_ref)) {
- if (com->lc_obj != NULL)
- lu_object_put(env, &com->lc_obj->do_lu);
- if (com->lc_file_ram != NULL)
- OBD_FREE(com->lc_file_ram, com->lc_file_size);
- if (com->lc_file_disk != NULL)
- OBD_FREE(com->lc_file_disk, com->lc_file_size);
- OBD_FREE_PTR(com);
+ struct lfsck_tgt_descs *ltds = &lfsck->li_ost_descs;
+ struct lfsck_tgt_desc *ltd;
+ struct lfsck_tgt_desc *next;
+ struct list_head *head = &lfsck_ost_orphan_list;
+ int rc;
+ bool for_ost = true;
+
+again:
+ spin_lock(&lfsck_instance_lock);
+ list_for_each_entry_safe(ltd, next, head, ltd_orphan_list) {
+ if (ltd->ltd_key == lfsck->li_bottom) {
+ list_del_init(<d->ltd_orphan_list);
+ list_add_tail(<d->ltd_orphan_list,
+ <ds->ltd_orphan);
+ }
}
+ spin_unlock(&lfsck_instance_lock);
+
+ down_write(<ds->ltd_rw_sem);
+ while (!list_empty(<ds->ltd_orphan)) {
+ ltd = list_entry(ltds->ltd_orphan.next,
+ struct lfsck_tgt_desc,
+ ltd_orphan_list);
+ list_del_init(<d->ltd_orphan_list);
+ rc = __lfsck_add_target(env, lfsck, ltd, for_ost, true);
+ /* Do not hold the semaphore for too long time. */
+ up_write(<ds->ltd_rw_sem);
+ if (rc != 0)
+ return rc;
+
+ down_write(<ds->ltd_rw_sem);
+ }
+ up_write(<ds->ltd_rw_sem);
+
+ if (for_ost) {
+ ltds = &lfsck->li_mdt_descs;
+ head = &lfsck_mdt_orphan_list;
+ for_ost = false;
+ goto again;
+ }
+
+ return 0;
}
static inline struct lfsck_component *
return NULL;
}
-static struct lfsck_component *
+struct lfsck_component *
lfsck_component_find(struct lfsck_instance *lfsck, __u16 type)
{
struct lfsck_component *com;
lfsck_component_put(env, com);
}
-static void lfsck_instance_cleanup(const struct lu_env *env,
- struct lfsck_instance *lfsck)
+int lfsck_fid_alloc(const struct lu_env *env, struct lfsck_instance *lfsck,
+ struct lu_fid *fid, bool locked)
+{
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ int rc = 0;
+ ENTRY;
+
+ if (!locked)
+ mutex_lock(&lfsck->li_mutex);
+
+ rc = seq_client_alloc_fid(env, lfsck->li_seq, fid);
+ if (rc >= 0) {
+ bk->lb_last_fid = *fid;
+ /* We do not care about whether the subsequent sub-operations
+ * failed or not. The worst case is that one FID is lost that
+ * is not a big issue for the LFSCK since it is relative rare
+ * for LFSCK create. */
+ rc = lfsck_bookmark_store(env, lfsck);
+ }
+
+ if (!locked)
+ mutex_unlock(&lfsck->li_mutex);
+
+ RETURN(rc);
+}
+
+static const char dot[] = ".";
+static const char dotdot[] = "..";
+static const char dotlustre[] = ".lustre";
+static const char lostfound[] = "lost+found";
+
+static int lfsck_create_lpf_local(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *parent,
+ struct dt_object *child,
+ struct lu_attr *la,
+ struct dt_object_format *dof,
+ const char *name)
+{
+ struct dt_insert_rec *rec = &lfsck_env_info(env)->lti_dt_rec;
+ struct dt_device *dev = lfsck->li_bottom;
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ struct dt_object *bk_obj = lfsck->li_bookmark_obj;
+ const struct lu_fid *cfid = lfsck_dto2fid(child);
+ struct thandle *th = NULL;
+ struct linkea_data ldata = { 0 };
+ struct lu_buf linkea_buf;
+ const struct lu_name *cname;
+ loff_t pos = 0;
+ int len = sizeof(struct lfsck_bookmark);
+ int rc;
+ ENTRY;
+
+ rc = linkea_data_new(&ldata,
+ &lfsck_env_info(env)->lti_linkea_buf);
+ if (rc != 0)
+ RETURN(rc);
+
+ cname = lfsck_name_get_const(env, name, strlen(name));
+ rc = linkea_add_buf(&ldata, cname, lfsck_dto2fid(parent));
+ if (rc != 0)
+ RETURN(rc);
+
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ /* 1a. create child */
+ rc = dt_declare_create(env, child, la, NULL, dof, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 2a. increase child nlink */
+ rc = dt_declare_ref_add(env, child, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 3a. insert linkEA for child */
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = dt_declare_xattr_set(env, child, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 4a. insert name into parent dir */
+ rec->rec_type = S_IFDIR;
+ rec->rec_fid = cfid;
+ rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 5a. increase parent nlink */
+ rc = dt_declare_ref_add(env, parent, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 6a. update bookmark */
+ rc = dt_declare_record_write(env, bk_obj,
+ lfsck_buf_get(env, bk, len), 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, child, 0);
+ /* 1b.1. create child */
+ rc = dt_create(env, child, la, NULL, dof, th);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ if (unlikely(!dt_try_as_dir(env, child)))
+ GOTO(unlock, rc = -ENOTDIR);
+
+ /* 1b.2. insert dot into child dir */
+ 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(unlock, rc);
+
+ /* 1b.3. insert dotdot into child dir */
+ rec->rec_fid = &LU_LPF_FID;
+ rc = dt_insert(env, child, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th, BYPASS_CAPA, 1);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ /* 2b. increase child nlink */
+ rc = dt_ref_add(env, child, th);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ /* 3b. insert linkEA for child. */
+ rc = dt_xattr_set(env, child, &linkea_buf,
+ XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ dt_write_unlock(env, child);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 4b. insert name into parent dir */
+ 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)
+ GOTO(stop, rc);
+
+ dt_write_lock(env, parent, 0);
+ /* 5b. increase parent nlink */
+ rc = dt_ref_add(env, parent, th);
+ dt_write_unlock(env, parent);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ bk->lb_lpf_fid = *cfid;
+ lfsck_bookmark_cpu_to_le(&lfsck->li_bookmark_disk, bk);
+
+ /* 6b. update bookmark */
+ rc = dt_record_write(env, bk_obj,
+ lfsck_buf_get(env, bk, len), &pos, th);
+
+ GOTO(stop, rc);
+
+unlock:
+ dt_write_unlock(env, child);
+
+stop:
+ dt_trans_stop(env, dev, th);
+
+ return rc;
+}
+
+static int lfsck_create_lpf_remote(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct dt_object *parent,
+ struct dt_object *child,
+ struct lu_attr *la,
+ struct dt_object_format *dof,
+ const char *name)
+{
+ struct dt_insert_rec *rec = &lfsck_env_info(env)->lti_dt_rec;
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ struct dt_object *bk_obj = lfsck->li_bookmark_obj;
+ const struct lu_fid *cfid = lfsck_dto2fid(child);
+ struct thandle *th = NULL;
+ struct linkea_data ldata = { 0 };
+ struct lu_buf linkea_buf;
+ const struct lu_name *cname;
+ struct dt_device *dev;
+ loff_t pos = 0;
+ int len = sizeof(struct lfsck_bookmark);
+ int rc;
+ ENTRY;
+
+ rc = linkea_data_new(&ldata,
+ &lfsck_env_info(env)->lti_linkea_buf);
+ if (rc != 0)
+ RETURN(rc);
+
+ cname = lfsck_name_get_const(env, name, strlen(name));
+ rc = linkea_add_buf(&ldata, cname, lfsck_dto2fid(parent));
+ if (rc != 0)
+ RETURN(rc);
+
+ /* Create .lustre/lost+found/MDTxxxx. */
+
+ /* XXX: Currently, cross-MDT create operation needs to create the child
+ * object firstly, then insert name into the parent directory. For
+ * this case, the child object resides on current MDT (local), but
+ * the parent ".lustre/lost+found" may be on remote MDT. It is not
+ * easy to contain all the sub-modifications orderly within single
+ * transaction.
+ *
+ * To avoid more inconsistency, we split the create operation into
+ * two transactions:
+ *
+ * 1) create the child and update the lfsck_bookmark::lb_lpf_fid
+ * locally.
+ * 2) insert the name "MDTXXXX" in the parent ".lustre/lost+found"
+ * remotely.
+ *
+ * If 1) done, but 2) failed, then go ahead, the LFSCK will try to
+ * repair such inconsistency when LFSCK run next time. */
+
+ /* Transaction I: locally */
+
+ dev = lfsck->li_bottom;
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ /* 1a. create child */
+ rc = dt_declare_create(env, child, la, NULL, dof, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 2a. increase child nlink */
+ rc = dt_declare_ref_add(env, child, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 3a. insert linkEA for child */
+ linkea_buf.lb_buf = ldata.ld_buf->lb_buf;
+ linkea_buf.lb_len = ldata.ld_leh->leh_len;
+ rc = dt_declare_xattr_set(env, child, &linkea_buf,
+ XATTR_NAME_LINK, 0, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 4a. update bookmark */
+ rc = dt_declare_record_write(env, bk_obj,
+ lfsck_buf_get(env, bk, len), 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, child, 0);
+ /* 1b.1. create child */
+ rc = dt_create(env, child, la, NULL, dof, th);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ if (unlikely(!dt_try_as_dir(env, child)))
+ GOTO(unlock, rc = -ENOTDIR);
+
+ /* 1b.2. 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 *)dot, th, BYPASS_CAPA, 1);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ /* 1b.3. insert dotdot into child dir */
+ rec->rec_fid = &LU_LPF_FID;
+ rc = dt_insert(env, child, (const struct dt_rec *)rec,
+ (const struct dt_key *)dotdot, th, BYPASS_CAPA, 1);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ /* 2b. increase child nlink */
+ rc = dt_ref_add(env, child, th);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ /* 3b. insert linkEA for child */
+ rc = dt_xattr_set(env, child, &linkea_buf,
+ XATTR_NAME_LINK, 0, th, BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(unlock, rc);
+
+ bk->lb_lpf_fid = *cfid;
+ lfsck_bookmark_cpu_to_le(&lfsck->li_bookmark_disk, bk);
+
+ /* 4b. update bookmark */
+ rc = dt_record_write(env, bk_obj,
+ lfsck_buf_get(env, bk, len), &pos, th);
+
+ dt_write_unlock(env, child);
+ dt_trans_stop(env, dev, th);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* Transaction II: remotely */
+
+ dev = lfsck->li_next;
+ th = dt_trans_create(env, dev);
+ if (IS_ERR(th))
+ RETURN(PTR_ERR(th));
+
+ /* 5a. insert name into parent dir */
+ rec->rec_fid = cfid;
+ rc = dt_declare_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 6a. increase parent nlink */
+ rc = dt_declare_ref_add(env, parent, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ rc = dt_trans_start(env, dev, th);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ /* 5b. insert name into parent dir */
+ rc = dt_insert(env, parent, (const struct dt_rec *)rec,
+ (const struct dt_key *)name, th, BYPASS_CAPA, 1);
+ if (rc != 0)
+ GOTO(stop, rc);
+
+ dt_write_lock(env, parent, 0);
+ /* 6b. increase parent nlink */
+ rc = dt_ref_add(env, parent, th);
+ dt_write_unlock(env, parent);
+
+ GOTO(stop, rc);
+
+unlock:
+ dt_write_unlock(env, child);
+stop:
+ dt_trans_stop(env, dev, th);
+
+ if (rc != 0 && dev == lfsck->li_next)
+ CDEBUG(D_LFSCK, "%s: partially created the object "DFID
+ "for orphans, but failed to insert the name %s "
+ "to the .lustre/lost+found/. Such inconsistency "
+ "will be repaired when LFSCK run next time: rc = %d\n",
+ lfsck_lfsck2name(lfsck), PFID(cfid), name, rc);
+
+ return rc;
+}
+
+/* Do NOT create .lustre/lost+found/MDTxxxx when register the lfsck instance,
+ * because the MDT0 maybe not reaady for sequence allocation yet. We do that
+ * only when it is required, such as orphan OST-objects repairing. */
+int lfsck_create_lpf(const struct lu_env *env, struct lfsck_instance *lfsck)
+{
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lu_fid *cfid = &info->lti_fid2;
+ struct lu_attr *la = &info->lti_la;
+ struct dt_object_format *dof = &info->lti_dof;
+ struct dt_object *parent = NULL;
+ struct dt_object *child = NULL;
+ char name[8];
+ int node = lfsck_dev_idx(lfsck->li_bottom);
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(lfsck->li_master);
+
+ sprintf(name, "MDT%04x", node);
+ if (node == 0) {
+ parent = lfsck_object_find_by_dev(env, lfsck->li_bottom,
+ &LU_LPF_FID);
+ } else {
+ struct lfsck_tgt_desc *ltd;
+
+ ltd = lfsck_tgt_get(&lfsck->li_mdt_descs, 0);
+ if (unlikely(ltd == NULL))
+ RETURN(-ENXIO);
+
+ parent = lfsck_object_find_by_dev(env, ltd->ltd_tgt,
+ &LU_LPF_FID);
+ lfsck_tgt_put(ltd);
+ }
+ if (IS_ERR(parent))
+ RETURN(PTR_ERR(parent));
+
+ if (unlikely(!dt_try_as_dir(env, parent)))
+ GOTO(out, rc = -ENOTDIR);
+
+ mutex_lock(&lfsck->li_mutex);
+ if (lfsck->li_lpf_obj != NULL)
+ GOTO(unlock, rc = 0);
+
+ if (fid_is_zero(&bk->lb_lpf_fid)) {
+ /* There is corner case that: in former LFSCK scanning we have
+ * created the .lustre/lost+found/MDTxxxx but failed to update
+ * the lfsck_bookmark::lb_lpf_fid successfully. So need lookup
+ * it from MDT0 firstly. */
+ rc = dt_lookup(env, parent, (struct dt_rec *)cfid,
+ (const struct dt_key *)name, BYPASS_CAPA);
+ if (rc != 0 && rc != -ENOENT)
+ GOTO(unlock, rc);
+
+ if (rc == 0) {
+ bk->lb_lpf_fid = *cfid;
+ rc = lfsck_bookmark_store(env, lfsck);
+ } else {
+ rc = lfsck_fid_alloc(env, lfsck, cfid, true);
+ }
+ if (rc != 0)
+ GOTO(unlock, rc);
+ } else {
+ *cfid = bk->lb_lpf_fid;
+ }
+
+ child = lfsck_object_find_by_dev(env, lfsck->li_bottom, cfid);
+ if (IS_ERR(child))
+ GOTO(unlock, rc = PTR_ERR(child));
+
+ if (dt_object_exists(child) != 0) {
+ if (unlikely(!dt_try_as_dir(env, child)))
+ rc = -ENOTDIR;
+ else
+ lfsck->li_lpf_obj = child;
+
+ GOTO(unlock, rc);
+ }
+
+ memset(la, 0, sizeof(*la));
+ la->la_atime = la->la_mtime = la->la_ctime = cfs_time_current_sec();
+ la->la_mode = S_IFDIR | S_IRWXU;
+ la->la_valid = LA_ATIME | LA_MTIME | LA_CTIME | LA_MODE |
+ LA_UID | LA_GID;
+ memset(dof, 0, sizeof(*dof));
+ dof->dof_type = dt_mode_to_dft(S_IFDIR);
+
+ if (node == 0)
+ rc = lfsck_create_lpf_local(env, lfsck, parent, child, la,
+ dof, name);
+ else
+ rc = lfsck_create_lpf_remote(env, lfsck, parent, child, la,
+ dof, name);
+ if (rc == 0)
+ lfsck->li_lpf_obj = child;
+
+ GOTO(unlock, rc);
+
+unlock:
+ mutex_unlock(&lfsck->li_mutex);
+ if (rc != 0 && child != NULL && !IS_ERR(child))
+ lu_object_put(env, &child->do_lu);
+out:
+ if (parent != NULL && !IS_ERR(parent))
+ lu_object_put(env, &parent->do_lu);
+
+ return rc;
+}
+
+static int lfsck_fid_init(struct lfsck_instance *lfsck)
+{
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ struct seq_server_site *ss;
+ char *prefix;
+ int rc = 0;
+ ENTRY;
+
+ ss = lu_site2seq(lfsck->li_bottom->dd_lu_dev.ld_site);
+ if (unlikely(ss == NULL))
+ RETURN(-ENXIO);
+
+ OBD_ALLOC_PTR(lfsck->li_seq);
+ if (lfsck->li_seq == NULL)
+ RETURN(-ENOMEM);
+
+ OBD_ALLOC(prefix, MAX_OBD_NAME + 7);
+ if (prefix == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ snprintf(prefix, MAX_OBD_NAME + 7, "lfsck-%s", lfsck_lfsck2name(lfsck));
+ rc = seq_client_init(lfsck->li_seq, NULL, LUSTRE_SEQ_METADATA, prefix,
+ ss->ss_server_seq);
+ OBD_FREE(prefix, MAX_OBD_NAME + 7);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ if (fid_is_sane(&bk->lb_last_fid))
+ lfsck->li_seq->lcs_fid = bk->lb_last_fid;
+
+ RETURN(0);
+
+out:
+ OBD_FREE_PTR(lfsck->li_seq);
+ lfsck->li_seq = NULL;
+
+ return rc;
+}
+
+static void lfsck_fid_fini(struct lfsck_instance *lfsck)
+{
+ if (lfsck->li_seq != NULL) {
+ seq_client_fini(lfsck->li_seq);
+ OBD_FREE_PTR(lfsck->li_seq);
+ lfsck->li_seq = NULL;
+ }
+}
+
+void lfsck_instance_cleanup(const struct lu_env *env,
+ struct lfsck_instance *lfsck)
{
struct ptlrpc_thread *thread = &lfsck->li_thread;
struct lfsck_component *com;
LASSERT(thread_is_init(thread) || thread_is_stopped(thread));
if (lfsck->li_obj_oit != NULL) {
- lu_object_put(env, &lfsck->li_obj_oit->do_lu);
+ lu_object_put_nocache(env, &lfsck->li_obj_oit->do_lu);
lfsck->li_obj_oit = NULL;
}
lfsck_component_cleanup(env, com);
}
+ lfsck_tgt_descs_fini(&lfsck->li_ost_descs);
+ lfsck_tgt_descs_fini(&lfsck->li_mdt_descs);
+
if (lfsck->li_bookmark_obj != NULL) {
- lu_object_put(env, &lfsck->li_bookmark_obj->do_lu);
+ lu_object_put_nocache(env, &lfsck->li_bookmark_obj->do_lu);
lfsck->li_bookmark_obj = NULL;
}
+ if (lfsck->li_lpf_obj != NULL) {
+ lu_object_put(env, &lfsck->li_lpf_obj->do_lu);
+ lfsck->li_lpf_obj = NULL;
+ }
+
if (lfsck->li_los != NULL) {
local_oid_storage_fini(env, lfsck->li_los);
lfsck->li_los = NULL;
}
- if (lfsck->li_local_root != NULL) {
- lu_object_put(env, &lfsck->li_local_root->do_lu);
- lfsck->li_local_root = NULL;
- }
+ lfsck_fid_fini(lfsck);
OBD_FREE_PTR(lfsck);
}
-static inline void lfsck_instance_get(struct lfsck_instance *lfsck)
-{
- atomic_inc(&lfsck->li_ref);
-}
-
-static inline void lfsck_instance_put(const struct lu_env *env,
- struct lfsck_instance *lfsck)
-{
- if (atomic_dec_and_test(&lfsck->li_ref))
- lfsck_instance_cleanup(env, lfsck);
-}
-
-static inline struct lfsck_instance *lfsck_instance_find(struct dt_device *key,
- bool ref, bool unlink)
+static inline struct lfsck_instance *
+__lfsck_instance_find(struct dt_device *key, bool ref, bool unlink)
{
struct lfsck_instance *lfsck;
- spin_lock(&lfsck_instance_lock);
cfs_list_for_each_entry(lfsck, &lfsck_instance_list, li_link) {
if (lfsck->li_bottom == key) {
if (ref)
lfsck_instance_get(lfsck);
if (unlink)
list_del_init(&lfsck->li_link);
- spin_unlock(&lfsck_instance_lock);
+
return lfsck;
}
}
- spin_unlock(&lfsck_instance_lock);
+
return NULL;
}
+struct lfsck_instance *lfsck_instance_find(struct dt_device *key, bool ref,
+ bool unlink)
+{
+ struct lfsck_instance *lfsck;
+
+ spin_lock(&lfsck_instance_lock);
+ lfsck = __lfsck_instance_find(key, ref, unlink);
+ spin_unlock(&lfsck_instance_lock);
+
+ return lfsck;
+}
+
static inline int lfsck_instance_add(struct lfsck_instance *lfsck)
{
struct lfsck_instance *tmp;
return 0;
}
-int lfsck_bits_dump(char **buf, int *len, int bits, const char *names[],
+int lfsck_bits_dump(struct seq_file *m, int bits, const char *names[],
const char *prefix)
{
- int save = *len;
int flag;
- int rc;
int i;
+ bool newline = (bits != 0 ? false : true);
- rc = snprintf(*buf, *len, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
- if (rc <= 0)
- return -ENOSPC;
+ seq_printf(m, "%s:%c", prefix, bits != 0 ? ' ' : '\n');
- *buf += rc;
- *len -= rc;
for (i = 0, flag = 1; bits != 0; i++, flag = 1 << i) {
if (flag & bits) {
bits &= ~flag;
- rc = snprintf(*buf, *len, "%s%c", names[i],
- bits != 0 ? ',' : '\n');
- if (rc <= 0)
- return -ENOSPC;
+ if (names[i] != NULL) {
+ if (bits == 0)
+ newline = true;
- *buf += rc;
- *len -= rc;
+ seq_printf(m, "%s%c", names[i],
+ newline ? '\n' : ',');
+ }
}
}
- return save - *len;
+
+ if (!newline)
+ seq_printf(m, "\n");
+ return 0;
}
-int lfsck_time_dump(char **buf, int *len, __u64 time, const char *prefix)
+int lfsck_time_dump(struct seq_file *m, __u64 time, const char *prefix)
{
- int rc;
-
if (time != 0)
- rc = snprintf(*buf, *len, "%s: "LPU64" seconds\n", prefix,
- cfs_time_current_sec() - time);
+ seq_printf(m, "%s: "LPU64" seconds\n", prefix,
+ cfs_time_current_sec() - time);
else
- rc = snprintf(*buf, *len, "%s: N/A\n", prefix);
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- return rc;
+ seq_printf(m, "%s: N/A\n", prefix);
+ return 0;
}
-int lfsck_pos_dump(char **buf, int *len, struct lfsck_position *pos,
+int lfsck_pos_dump(struct seq_file *m, struct lfsck_position *pos,
const char *prefix)
{
- int rc;
-
if (fid_is_zero(&pos->lp_dir_parent)) {
if (pos->lp_oit_cookie == 0)
- rc = snprintf(*buf, *len, "%s: N/A, N/A, N/A\n",
- prefix);
+ seq_printf(m, "%s: N/A, N/A, N/A\n",
+ prefix);
else
- rc = snprintf(*buf, *len, "%s: "LPU64", N/A, N/A\n",
- prefix, pos->lp_oit_cookie);
+ seq_printf(m, "%s: "LPU64", N/A, N/A\n",
+ prefix, pos->lp_oit_cookie);
} else {
- rc = snprintf(*buf, *len, "%s: "LPU64", "DFID", "LPU64"\n",
- prefix, pos->lp_oit_cookie,
- PFID(&pos->lp_dir_parent), pos->lp_dir_cookie);
+ seq_printf(m, "%s: "LPU64", "DFID", "LPX64"\n",
+ prefix, pos->lp_oit_cookie,
+ PFID(&pos->lp_dir_parent), pos->lp_dir_cookie);
}
- if (rc <= 0)
- return -ENOSPC;
-
- *buf += rc;
- *len -= rc;
- return rc;
+ return 0;
}
void lfsck_pos_fill(const struct lu_env *env, struct lfsck_instance *lfsck,
{
const struct dt_it_ops *iops = &lfsck->li_obj_oit->do_index_ops->dio_it;
- spin_lock(&lfsck->li_lock);
if (unlikely(lfsck->li_di_oit == NULL)) {
- spin_unlock(&lfsck->li_lock);
memset(pos, 0, sizeof(*pos));
return;
}
fid_zero(&pos->lp_dir_parent);
pos->lp_dir_cookie = 0;
} else {
- pos->lp_dir_parent = *lu_object_fid(&dto->do_lu);
+ pos->lp_dir_parent = *lfsck_dto2fid(dto);
}
} else {
fid_zero(&pos->lp_dir_parent);
pos->lp_dir_cookie = 0;
}
- spin_unlock(&lfsck->li_lock);
}
-static void __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit)
+bool __lfsck_set_speed(struct lfsck_instance *lfsck, __u32 limit)
{
- lfsck->li_bookmark_ram.lb_speed_limit = limit;
+ bool dirty = false;
+
if (limit != LFSCK_SPEED_NO_LIMIT) {
- if (limit > CFS_HZ) {
- lfsck->li_sleep_rate = limit / CFS_HZ;
+ if (limit > HZ) {
+ lfsck->li_sleep_rate = limit / HZ;
lfsck->li_sleep_jif = 1;
} else {
lfsck->li_sleep_rate = 1;
- lfsck->li_sleep_jif = CFS_HZ / limit;
+ lfsck->li_sleep_jif = HZ / limit;
}
} else {
lfsck->li_sleep_jif = 0;
lfsck->li_sleep_rate = 0;
}
+
+ if (lfsck->li_bookmark_ram.lb_speed_limit != limit) {
+ lfsck->li_bookmark_ram.lb_speed_limit = limit;
+ dirty = true;
+ }
+
+ return dirty;
}
void lfsck_control_speed(struct lfsck_instance *lfsck)
if (lfsck->li_sleep_jif > 0 &&
lfsck->li_new_scanned >= lfsck->li_sleep_rate) {
- spin_lock(&lfsck->li_lock);
- if (likely(lfsck->li_sleep_jif > 0 &&
- lfsck->li_new_scanned >= lfsck->li_sleep_rate)) {
- lwi = LWI_TIMEOUT_INTR(lfsck->li_sleep_jif, NULL,
- LWI_ON_SIGNAL_NOOP, NULL);
- spin_unlock(&lfsck->li_lock);
+ lwi = LWI_TIMEOUT_INTR(lfsck->li_sleep_jif, NULL,
+ LWI_ON_SIGNAL_NOOP, NULL);
- l_wait_event(thread->t_ctl_waitq,
- !thread_is_running(thread),
- &lwi);
- lfsck->li_new_scanned = 0;
- } else {
- spin_unlock(&lfsck->li_lock);
- }
+ l_wait_event(thread->t_ctl_waitq,
+ !thread_is_running(thread),
+ &lwi);
+ lfsck->li_new_scanned = 0;
+ }
+}
+
+void lfsck_control_speed_by_self(struct lfsck_component *com)
+{
+ struct lfsck_instance *lfsck = com->lc_lfsck;
+ struct ptlrpc_thread *thread = &lfsck->li_thread;
+ struct l_wait_info lwi;
+
+ if (lfsck->li_sleep_jif > 0 &&
+ com->lc_new_scanned >= lfsck->li_sleep_rate) {
+ lwi = LWI_TIMEOUT_INTR(lfsck->li_sleep_jif, NULL,
+ LWI_ON_SIGNAL_NOOP, NULL);
+
+ l_wait_event(thread->t_ctl_waitq,
+ !thread_is_running(thread),
+ &lwi);
+ com->lc_new_scanned = 0;
}
}
return 1;
}
- /* .lustre doesn't contain "real" user objects, no need lfsck */
- if (fid_is_dot_lustre(lfsck_dto2fid(obj))) {
+ /* No need to check .lustre and its children. */
+ if (fid_seq_is_dot_lustre(fid_seq(lfsck_dto2fid(obj)))) {
if (depth > 0)
lfsck_object_put(env, obj);
return 0;
if (rc != 0)
return rc;
- if (unlikely(lu_fid_eq(fid,
- lfsck_dto2fid(lfsck->li_local_root))))
+ if (unlikely(lu_fid_eq(fid, &lfsck->li_local_root_fid)))
return 0;
obj = lfsck_object_find(env, lfsck, fid);
return 0;
}
- /* Currently, only client visible directory can be remote. */
if (dt_object_remote(obj)) {
+ /* .lustre/lost+found/MDTxxx can be remote directory. */
+ if (fid_seq_is_dot_lustre(fid_seq(lfsck_dto2fid(obj))))
+ rc = 0;
+ else
+ /* Other remote directory should be client
+ * visible and need to be checked. */
+ rc = 1;
lfsck_object_put(env, obj);
- return 1;
+ return rc;
}
depth++;
return 0;
}
+struct lfsck_thread_args *lfsck_thread_args_init(struct lfsck_instance *lfsck,
+ struct lfsck_component *com,
+ struct lfsck_start_param *lsp)
+{
+ struct lfsck_thread_args *lta;
+ int rc;
+
+ OBD_ALLOC_PTR(lta);
+ if (lta == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ rc = lu_env_init(<a->lta_env, LCT_MD_THREAD | LCT_DT_THREAD);
+ if (rc != 0) {
+ OBD_FREE_PTR(lta);
+ return ERR_PTR(rc);
+ }
+
+ lta->lta_lfsck = lfsck_instance_get(lfsck);
+ if (com != NULL)
+ lta->lta_com = lfsck_component_get(com);
+
+ lta->lta_lsp = lsp;
+
+ return lta;
+}
+
+void lfsck_thread_args_fini(struct lfsck_thread_args *lta)
+{
+ if (lta->lta_com != NULL)
+ lfsck_component_put(<a->lta_env, lta->lta_com);
+ lfsck_instance_put(<a->lta_env, lta->lta_lfsck);
+ lu_env_fini(<a->lta_env);
+ OBD_FREE_PTR(lta);
+}
+
/* LFSCK wrap functions */
void lfsck_fail(const struct lu_env *env, struct lfsck_instance *lfsck,
int lfsck_checkpoint(const struct lu_env *env, struct lfsck_instance *lfsck)
{
struct lfsck_component *com;
- int rc;
+ int rc = 0;
+ int rc1 = 0;
if (likely(cfs_time_beforeq(cfs_time_current(),
lfsck->li_time_next_checkpoint)))
cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
rc = com->lc_ops->lfsck_checkpoint(env, com, false);
if (rc != 0)
- return rc;;
+ rc1 = rc;
}
lfsck->li_time_last_checkpoint = cfs_time_current();
lfsck->li_time_next_checkpoint = lfsck->li_time_last_checkpoint +
cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
- return 0;
+ return rc1 != 0 ? rc1 : rc;
}
-int lfsck_prep(const struct lu_env *env, struct lfsck_instance *lfsck)
+int lfsck_prep(const struct lu_env *env, struct lfsck_instance *lfsck,
+ struct lfsck_start_param *lsp)
{
struct dt_object *obj = NULL;
struct lfsck_component *com;
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
com->lc_journal = 0;
- rc = com->lc_ops->lfsck_prep(env, com);
+ rc = com->lc_ops->lfsck_prep(env, com, lsp);
if (rc != 0)
- RETURN(rc);
+ GOTO(out, rc);
if ((pos == NULL) ||
(!lfsck_pos_is_zero(&com->lc_pos_start) &&
}
lfsck->li_obj_dir = lfsck_object_get(obj);
+ lfsck->li_cookie_dir = iops->store(env, di);
spin_lock(&lfsck->li_lock);
lfsck->li_di_dir = di;
spin_unlock(&lfsck->li_lock);
}
lfsck->li_obj_dir = lfsck_object_get(obj);
+ lfsck->li_cookie_dir = iops->store(env, di);
spin_lock(&lfsck->li_lock);
lfsck->li_di_dir = di;
spin_unlock(&lfsck->li_lock);
{
struct lfsck_component *com;
struct lfsck_component *next;
- int rc;
+ int rc = 0;
+ int rc1 = 0;
lfsck_pos_fill(env, lfsck, &lfsck->li_pos_current, false);
cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_scan, lc_link) {
rc = com->lc_ops->lfsck_post(env, com, result, false);
if (rc != 0)
- return rc;
+ rc1 = rc;
}
lfsck->li_time_last_checkpoint = cfs_time_current();
lfsck->li_time_next_checkpoint = lfsck->li_time_last_checkpoint +
cfs_time_seconds(LFSCK_CHECKPOINT_INTERVAL);
+
+ /* Ignore some component post failure to make other can go ahead. */
return result;
}
+static void lfsck_interpret(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct ptlrpc_request *req, void *args, int result)
+{
+ struct lfsck_async_interpret_args *laia = args;
+ struct lfsck_component *com;
+
+ LASSERT(laia->laia_com == NULL);
+ LASSERT(laia->laia_shared);
+
+ spin_lock(&lfsck->li_lock);
+ list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
+ if (com->lc_ops->lfsck_interpret != NULL) {
+ laia->laia_com = com;
+ com->lc_ops->lfsck_interpret(env, req, laia, result);
+ }
+ }
+
+ list_for_each_entry(com, &lfsck->li_list_double_scan, lc_link) {
+ if (com->lc_ops->lfsck_interpret != NULL) {
+ laia->laia_com = com;
+ com->lc_ops->lfsck_interpret(env, req, laia, result);
+ }
+ }
+ spin_unlock(&lfsck->li_lock);
+}
+
int lfsck_double_scan(const struct lu_env *env, struct lfsck_instance *lfsck)
{
struct lfsck_component *com;
struct lfsck_component *next;
- int rc;
+ struct l_wait_info lwi = { 0 };
+ int rc = 0;
+ int rc1 = 0;
- cfs_list_for_each_entry_safe(com, next, &lfsck->li_list_double_scan,
- lc_link) {
+ list_for_each_entry(com, &lfsck->li_list_double_scan, lc_link) {
if (lfsck->li_bookmark_ram.lb_param & LPF_DRYRUN)
com->lc_journal = 0;
rc = com->lc_ops->lfsck_double_scan(env, com);
if (rc != 0)
- return rc;
+ rc1 = rc;
+ }
+
+ l_wait_event(lfsck->li_thread.t_ctl_waitq,
+ atomic_read(&lfsck->li_double_scan_count) == 0,
+ &lwi);
+
+ if (lfsck->li_status != LS_PAUSED &&
+ lfsck->li_status != LS_CO_PAUSED) {
+ list_for_each_entry_safe(com, next, &lfsck->li_list_double_scan,
+ lc_link) {
+ spin_lock(&lfsck->li_lock);
+ list_del_init(&com->lc_link);
+ list_add_tail(&com->lc_link, &lfsck->li_list_idle);
+ spin_unlock(&lfsck->li_lock);
+ }
+ }
+
+ return rc1 != 0 ? rc1 : rc;
+}
+
+static int lfsck_stop_notify(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct lfsck_tgt_descs *ltds,
+ struct lfsck_tgt_desc *ltd, __u16 type)
+{
+ struct ptlrpc_request_set *set;
+ struct lfsck_component *com;
+ int rc = 0;
+ ENTRY;
+
+ spin_lock(&lfsck->li_lock);
+ com = __lfsck_component_find(lfsck, type, &lfsck->li_list_scan);
+ if (com == NULL)
+ com = __lfsck_component_find(lfsck, type,
+ &lfsck->li_list_double_scan);
+ if (com != NULL)
+ lfsck_component_get(com);
+ spin_unlock(&lfsck->li_lock);
+
+ if (com != NULL) {
+ if (com->lc_ops->lfsck_stop_notify != NULL) {
+ set = ptlrpc_prep_set();
+ if (set == NULL) {
+ lfsck_component_put(env, com);
+
+ RETURN(-ENOMEM);
+ }
+
+ rc = com->lc_ops->lfsck_stop_notify(env, com, ltds,
+ ltd, set);
+ if (rc == 0)
+ rc = ptlrpc_set_wait(set);
+
+ ptlrpc_set_destroy(set);
+ }
+
+ lfsck_component_put(env, com);
+ }
+
+ RETURN(rc);
+}
+
+void lfsck_quit(const struct lu_env *env, struct lfsck_instance *lfsck)
+{
+ struct lfsck_component *com;
+ struct lfsck_component *next;
+
+ list_for_each_entry_safe(com, next, &lfsck->li_list_scan,
+ lc_link) {
+ if (com->lc_ops->lfsck_quit != NULL)
+ com->lc_ops->lfsck_quit(env, com);
+
+ spin_lock(&lfsck->li_lock);
+ list_del_init(&com->lc_link);
+ list_del_init(&com->lc_link_dir);
+ list_add_tail(&com->lc_link, &lfsck->li_list_idle);
+ spin_unlock(&lfsck->li_lock);
+ }
+
+ list_for_each_entry_safe(com, next, &lfsck->li_list_double_scan,
+ lc_link) {
+ if (com->lc_ops->lfsck_quit != NULL)
+ com->lc_ops->lfsck_quit(env, com);
+
+ spin_lock(&lfsck->li_lock);
+ list_del_init(&com->lc_link);
+ list_add_tail(&com->lc_link, &lfsck->li_list_idle);
+ spin_unlock(&lfsck->li_lock);
}
+}
+
+static int lfsck_async_interpret(const struct lu_env *env,
+ struct ptlrpc_request *req,
+ void *args, int rc)
+{
+ struct lfsck_async_interpret_args *laia = args;
+ struct lfsck_instance *lfsck;
+
+ lfsck = container_of0(laia->laia_ltds, struct lfsck_instance,
+ li_mdt_descs);
+ lfsck_interpret(env, lfsck, req, laia, rc);
+ lfsck_tgt_put(laia->laia_ltd);
+ if (rc != 0 && laia->laia_result != -EALREADY)
+ laia->laia_result = rc;
+
+ return 0;
+}
+
+int lfsck_async_request(const struct lu_env *env, struct obd_export *exp,
+ struct lfsck_request *lr,
+ struct ptlrpc_request_set *set,
+ ptlrpc_interpterer_t interpreter,
+ void *args, int request)
+{
+ struct lfsck_async_interpret_args *laia;
+ struct ptlrpc_request *req;
+ struct lfsck_request *tmp;
+ struct req_format *format;
+ int rc;
+
+ switch (request) {
+ case LFSCK_NOTIFY:
+ format = &RQF_LFSCK_NOTIFY;
+ break;
+ case LFSCK_QUERY:
+ format = &RQF_LFSCK_QUERY;
+ break;
+ default:
+ CDEBUG(D_LFSCK, "%s: unknown async request %d: rc = %d\n",
+ exp->exp_obd->obd_name, request, -EINVAL);
+ return -EINVAL;
+ }
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp), format);
+ if (req == NULL)
+ return -ENOMEM;
+
+ rc = ptlrpc_request_pack(req, LUSTRE_OBD_VERSION, request);
+ if (rc != 0) {
+ ptlrpc_request_free(req);
+
+ return rc;
+ }
+
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_LFSCK_REQUEST);
+ *tmp = *lr;
+ ptlrpc_request_set_replen(req);
+
+ laia = ptlrpc_req_async_args(req);
+ *laia = *(struct lfsck_async_interpret_args *)args;
+ if (laia->laia_com != NULL)
+ lfsck_component_get(laia->laia_com);
+ req->rq_interpret_reply = interpreter;
+ ptlrpc_set_add_req(set, req);
+
return 0;
}
/* external interfaces */
-int lfsck_get_speed(struct dt_device *key, void *buf, int len)
+int lfsck_get_speed(struct seq_file *m, struct dt_device *key)
{
struct lu_env env;
struct lfsck_instance *lfsck;
int rc;
ENTRY;
- lfsck = lfsck_instance_find(key, true, false);
- if (unlikely(lfsck == NULL))
- RETURN(-ENODEV);
-
rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
if (rc != 0)
- GOTO(out, rc);
+ RETURN(rc);
- rc = snprintf(buf, len, "%u\n", lfsck->li_bookmark_ram.lb_speed_limit);
- lu_env_fini(&env);
+ lfsck = lfsck_instance_find(key, true, false);
+ if (likely(lfsck != NULL)) {
+ seq_printf(m, "%u\n", lfsck->li_bookmark_ram.lb_speed_limit);
+ lfsck_instance_put(&env, lfsck);
+ } else {
+ rc = -ENXIO;
+ }
- GOTO(out, rc);
+ lu_env_fini(&env);
-out:
- lfsck_instance_put(&env, lfsck);
- return rc;
+ RETURN(rc);
}
EXPORT_SYMBOL(lfsck_get_speed);
int rc;
ENTRY;
+ rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
+ if (rc != 0)
+ RETURN(rc);
+
lfsck = lfsck_instance_find(key, true, false);
- if (unlikely(lfsck == NULL))
- RETURN(-ENODEV);
+ if (likely(lfsck != NULL)) {
+ mutex_lock(&lfsck->li_mutex);
+ if (__lfsck_set_speed(lfsck, val))
+ rc = lfsck_bookmark_store(&env, lfsck);
+ mutex_unlock(&lfsck->li_mutex);
+ lfsck_instance_put(&env, lfsck);
+ } else {
+ rc = -ENXIO;
+ }
+
+ lu_env_fini(&env);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_set_speed);
+
+int lfsck_get_windows(struct seq_file *m, struct dt_device *key)
+{
+ struct lu_env env;
+ struct lfsck_instance *lfsck;
+ int rc;
+ ENTRY;
rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
if (rc != 0)
- GOTO(out, rc);
+ RETURN(rc);
+
+ lfsck = lfsck_instance_find(key, true, false);
+ if (likely(lfsck != NULL)) {
+ seq_printf(m, "%u\n", lfsck->li_bookmark_ram.lb_async_windows);
+ lfsck_instance_put(&env, lfsck);
+ } else {
+ rc = -ENXIO;
+ }
- mutex_lock(&lfsck->li_mutex);
- __lfsck_set_speed(lfsck, val);
- rc = lfsck_bookmark_store(&env, lfsck);
- mutex_unlock(&lfsck->li_mutex);
lu_env_fini(&env);
- GOTO(out, rc);
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_get_windows);
-out:
- lfsck_instance_put(&env, lfsck);
- return rc;
+int lfsck_set_windows(struct dt_device *key, int val)
+{
+ struct lu_env env;
+ struct lfsck_instance *lfsck;
+ int rc;
+ ENTRY;
+
+ rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
+ if (rc != 0)
+ RETURN(rc);
+
+ lfsck = lfsck_instance_find(key, true, false);
+ if (likely(lfsck != NULL)) {
+ if (val > LFSCK_ASYNC_WIN_MAX) {
+ CWARN("%s: Too large async window size, which "
+ "may cause memory issues. The valid range "
+ "is [0 - %u]. If you do not want to restrict "
+ "the window size for async requests pipeline, "
+ "just set it as 0.\n",
+ lfsck_lfsck2name(lfsck), LFSCK_ASYNC_WIN_MAX);
+ rc = -EINVAL;
+ } else if (lfsck->li_bookmark_ram.lb_async_windows != val) {
+ mutex_lock(&lfsck->li_mutex);
+ lfsck->li_bookmark_ram.lb_async_windows = val;
+ rc = lfsck_bookmark_store(&env, lfsck);
+ mutex_unlock(&lfsck->li_mutex);
+ }
+ lfsck_instance_put(&env, lfsck);
+ } else {
+ rc = -ENXIO;
+ }
+
+ lu_env_fini(&env);
+
+ RETURN(rc);
}
-EXPORT_SYMBOL(lfsck_set_speed);
+EXPORT_SYMBOL(lfsck_set_windows);
-int lfsck_dump(struct dt_device *key, void *buf, int len, __u16 type)
+int lfsck_dump(struct seq_file *m, struct dt_device *key, enum lfsck_type type)
{
struct lu_env env;
struct lfsck_instance *lfsck;
- struct lfsck_component *com = NULL;
+ struct lfsck_component *com;
int rc;
ENTRY;
+ rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
+ if (rc != 0)
+ RETURN(rc);
+
lfsck = lfsck_instance_find(key, true, false);
- if (unlikely(lfsck == NULL))
- RETURN(-ENODEV);
+ if (likely(lfsck != NULL)) {
+ com = lfsck_component_find(lfsck, type);
+ if (likely(com != NULL)) {
+ rc = com->lc_ops->lfsck_dump(&env, com, m);
+ lfsck_component_put(&env, com);
+ } else {
+ rc = -ENOTSUPP;
+ }
+
+ lfsck_instance_put(&env, lfsck);
+ } else {
+ rc = -ENXIO;
+ }
+
+ lu_env_fini(&env);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_dump);
+
+static int lfsck_stop_all(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct lfsck_stop *stop)
+{
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lfsck_request *lr = &info->lti_lr;
+ struct lfsck_async_interpret_args *laia = &info->lti_laia;
+ struct ptlrpc_request_set *set;
+ struct lfsck_tgt_descs *ltds = &lfsck->li_mdt_descs;
+ struct lfsck_tgt_desc *ltd;
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ __u32 idx;
+ int rc = 0;
+ int rc1 = 0;
+ ENTRY;
+
+ LASSERT(stop->ls_flags & LPF_BROADCAST);
+
+ set = ptlrpc_prep_set();
+ if (unlikely(set == NULL))
+ RETURN(-ENOMEM);
+
+ memset(lr, 0, sizeof(*lr));
+ lr->lr_event = LE_STOP;
+ lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
+ lr->lr_status = stop->ls_status;
+ lr->lr_version = bk->lb_version;
+ lr->lr_active = LFSCK_TYPES_ALL;
+ lr->lr_param = stop->ls_flags;
+
+ laia->laia_com = NULL;
+ laia->laia_ltds = ltds;
+ laia->laia_lr = lr;
+ laia->laia_result = 0;
+ laia->laia_shared = 1;
+
+ down_read(<ds->ltd_rw_sem);
+ cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
+ ltd = lfsck_tgt_get(ltds, idx);
+ LASSERT(ltd != NULL);
+
+ laia->laia_ltd = ltd;
+ rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
+ lfsck_async_interpret, laia,
+ LFSCK_NOTIFY);
+ if (rc != 0) {
+ lfsck_interpret(env, lfsck, NULL, laia, rc);
+ lfsck_tgt_put(ltd);
+ CERROR("%s: cannot notify MDT %x for LFSCK stop: "
+ "rc = %d\n", lfsck_lfsck2name(lfsck), idx, rc);
+ rc1 = rc;
+ }
+ }
+ up_read(<ds->ltd_rw_sem);
+
+ rc = ptlrpc_set_wait(set);
+ ptlrpc_set_destroy(set);
+
+ if (rc == 0)
+ rc = laia->laia_result;
+
+ if (rc == -EALREADY)
+ rc = 0;
+
+ if (rc != 0)
+ CERROR("%s: fail to stop LFSCK on some MDTs: rc = %d\n",
+ lfsck_lfsck2name(lfsck), rc);
+
+ RETURN(rc != 0 ? rc : rc1);
+}
+
+static int lfsck_start_all(const struct lu_env *env,
+ struct lfsck_instance *lfsck,
+ struct lfsck_start *start)
+{
+ struct lfsck_thread_info *info = lfsck_env_info(env);
+ struct lfsck_request *lr = &info->lti_lr;
+ struct lfsck_async_interpret_args *laia = &info->lti_laia;
+ struct ptlrpc_request_set *set;
+ struct lfsck_tgt_descs *ltds = &lfsck->li_mdt_descs;
+ struct lfsck_tgt_desc *ltd;
+ struct lfsck_bookmark *bk = &lfsck->li_bookmark_ram;
+ __u32 idx;
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(start->ls_flags & LPF_BROADCAST);
+
+ set = ptlrpc_prep_set();
+ if (unlikely(set == NULL))
+ RETURN(-ENOMEM);
+
+ memset(lr, 0, sizeof(*lr));
+ lr->lr_event = LE_START;
+ lr->lr_index = lfsck_dev_idx(lfsck->li_bottom);
+ lr->lr_speed = bk->lb_speed_limit;
+ lr->lr_version = bk->lb_version;
+ lr->lr_active = start->ls_active;
+ lr->lr_param = start->ls_flags;
+ lr->lr_async_windows = bk->lb_async_windows;
+ lr->lr_valid = LSV_SPEED_LIMIT | LSV_ERROR_HANDLE | LSV_DRYRUN |
+ LSV_ASYNC_WINDOWS;
+
+ laia->laia_com = NULL;
+ laia->laia_ltds = ltds;
+ laia->laia_lr = lr;
+ laia->laia_result = 0;
+ laia->laia_shared = 1;
+
+ down_read(<ds->ltd_rw_sem);
+ cfs_foreach_bit(ltds->ltd_tgts_bitmap, idx) {
+ ltd = lfsck_tgt_get(ltds, idx);
+ LASSERT(ltd != NULL);
+
+ laia->laia_ltd = ltd;
+ ltd->ltd_layout_done = 0;
+ rc = lfsck_async_request(env, ltd->ltd_exp, lr, set,
+ lfsck_async_interpret, laia,
+ LFSCK_NOTIFY);
+ if (rc != 0) {
+ lfsck_interpret(env, lfsck, NULL, laia, rc);
+ lfsck_tgt_put(ltd);
+ CERROR("%s: cannot notify MDT %x for LFSCK "
+ "start, failout: rc = %d\n",
+ lfsck_lfsck2name(lfsck), idx, rc);
+ break;
+ }
+ }
+ up_read(<ds->ltd_rw_sem);
+
+ if (rc != 0) {
+ ptlrpc_set_destroy(set);
+
+ RETURN(rc);
+ }
- com = lfsck_component_find(lfsck, type);
- if (com == NULL)
- GOTO(out, rc = -ENOTSUPP);
+ rc = ptlrpc_set_wait(set);
+ ptlrpc_set_destroy(set);
- rc = lu_env_init(&env, LCT_MD_THREAD | LCT_DT_THREAD);
- if (rc != 0)
- GOTO(out, rc);
+ if (rc == 0)
+ rc = laia->laia_result;
- rc = com->lc_ops->lfsck_dump(&env, com, buf, len);
- lu_env_fini(&env);
+ if (rc != 0) {
+ struct lfsck_stop *stop = &info->lti_stop;
- GOTO(out, rc);
+ CERROR("%s: cannot start LFSCK on some MDTs, "
+ "stop all: rc = %d\n",
+ lfsck_lfsck2name(lfsck), rc);
+ if (rc != -EALREADY) {
+ stop->ls_status = LS_FAILED;
+ stop->ls_flags = LPF_ALL_TGT | LPF_BROADCAST;
+ lfsck_stop_all(env, lfsck, stop);
+ }
+ }
-out:
- if (com != NULL)
- lfsck_component_put(&env, com);
- lfsck_instance_put(&env, lfsck);
- return rc;
+ RETURN(rc);
}
-EXPORT_SYMBOL(lfsck_dump);
int lfsck_start(const struct lu_env *env, struct dt_device *key,
struct lfsck_start_param *lsp)
{
- struct lfsck_start *start = lsp->lsp_start;
- struct lfsck_instance *lfsck;
- struct lfsck_bookmark *bk;
- struct ptlrpc_thread *thread;
- struct lfsck_component *com;
- struct l_wait_info lwi = { 0 };
- bool dirty = false;
- int rc = 0;
- __u16 valid = 0;
- __u16 flags = 0;
+ struct lfsck_start *start = lsp->lsp_start;
+ struct lfsck_instance *lfsck;
+ struct lfsck_bookmark *bk;
+ struct ptlrpc_thread *thread;
+ struct lfsck_component *com;
+ struct l_wait_info lwi = { 0 };
+ struct lfsck_thread_args *lta;
+ struct task_struct *task;
+ int rc = 0;
+ __u16 valid = 0;
+ __u16 flags = 0;
+ __u16 type = 1;
ENTRY;
lfsck = lfsck_instance_find(key, true, false);
if (unlikely(lfsck == NULL))
- RETURN(-ENODEV);
+ RETURN(-ENXIO);
+
+ /* System is not ready, try again later. */
+ if (unlikely(lfsck->li_namespace == NULL))
+ GOTO(put, rc = -EAGAIN);
/* start == NULL means auto trigger paused LFSCK. */
if ((start == NULL) &&
mutex_lock(&lfsck->li_mutex);
spin_lock(&lfsck->li_lock);
if (!thread_is_init(thread) && !thread_is_stopped(thread)) {
+ rc = -EALREADY;
+ if (unlikely(start == NULL)) {
+ spin_unlock(&lfsck->li_lock);
+ GOTO(out, rc);
+ }
+
+ while (start->ls_active != 0) {
+ if (!(type & start->ls_active)) {
+ type <<= 1;
+ continue;
+ }
+
+ com = __lfsck_component_find(lfsck, type,
+ &lfsck->li_list_scan);
+ if (com == NULL)
+ com = __lfsck_component_find(lfsck, type,
+ &lfsck->li_list_double_scan);
+ if (com == NULL) {
+ rc = -EOPNOTSUPP;
+ break;
+ }
+
+ if (com->lc_ops->lfsck_join != NULL) {
+ rc = com->lc_ops->lfsck_join( env, com, lsp);
+ if (rc != 0 && rc != -EALREADY)
+ break;
+ }
+ start->ls_active &= ~type;
+ type <<= 1;
+ }
spin_unlock(&lfsck->li_lock);
- GOTO(out, rc = -EALREADY);
+ GOTO(out, rc);
}
-
spin_unlock(&lfsck->li_lock);
- lfsck->li_namespace = lsp->lsp_namespace;
- lfsck->li_paused = 0;
+ lfsck->li_status = 0;
lfsck->li_oit_over = 0;
+ lfsck->li_start_unplug = 0;
lfsck->li_drop_dryrun = 0;
lfsck->li_new_scanned = 0;
if (start == NULL)
goto trigger;
- start->ls_version = bk->lb_version;
- if (start->ls_valid & LSV_SPEED_LIMIT) {
- __lfsck_set_speed(lfsck, start->ls_speed_limit);
- dirty = true;
- }
-
- if (start->ls_valid & LSV_ERROR_HANDLE) {
- valid |= DOIV_ERROR_HANDLE;
- if (start->ls_flags & LPF_FAILOUT)
- flags |= DOIF_FAILOUT;
-
- if ((start->ls_flags & LPF_FAILOUT) &&
- !(bk->lb_param & LPF_FAILOUT)) {
- bk->lb_param |= LPF_FAILOUT;
- dirty = true;
- } else if (!(start->ls_flags & LPF_FAILOUT) &&
- (bk->lb_param & LPF_FAILOUT)) {
- bk->lb_param &= ~LPF_FAILOUT;
- dirty = true;
- }
- }
-
- if (start->ls_valid & LSV_DRYRUN) {
- if ((start->ls_flags & LPF_DRYRUN) &&
- !(bk->lb_param & LPF_DRYRUN)) {
- bk->lb_param |= LPF_DRYRUN;
- dirty = true;
- } else if (!(start->ls_flags & LPF_DRYRUN) &&
- (bk->lb_param & LPF_DRYRUN)) {
- bk->lb_param &= ~LPF_DRYRUN;
- lfsck->li_drop_dryrun = 1;
- dirty = true;
- }
- }
+ if (start->ls_flags & LPF_BROADCAST && !lfsck->li_master) {
+ CERROR("%s: only allow to specify '-A | -o' via MDS\n",
+ lfsck_lfsck2name(lfsck));
- if (dirty) {
- rc = lfsck_bookmark_store(env, lfsck);
- if (rc != 0)
- GOTO(out, rc);
+ GOTO(out, rc = -EPERM);
}
- if (start->ls_flags & LPF_RESET)
- flags |= DOIF_RESET;
+ start->ls_version = bk->lb_version;
if (start->ls_active != 0) {
struct lfsck_component *next;
- __u16 type = 1;
if (start->ls_active == LFSCK_TYPES_ALL)
start->ls_active = LFSCK_TYPES_SUPPORTED;
GOTO(out, rc = -ENOTSUPP);
}
- cfs_list_for_each_entry_safe(com, next,
- &lfsck->li_list_scan, lc_link) {
+ list_for_each_entry_safe(com, next,
+ &lfsck->li_list_scan, lc_link) {
if (!(com->lc_type & start->ls_active)) {
rc = com->lc_ops->lfsck_post(env, com, 0,
false);
/* The component status will be updated
* when its prep() is called later by
* the LFSCK main engine. */
- cfs_list_del_init(&com->lc_link);
- cfs_list_add_tail(&com->lc_link,
- &lfsck->li_list_scan);
+ list_del_init(&com->lc_link);
+ list_add_tail(&com->lc_link,
+ &lfsck->li_list_scan);
}
start->ls_active &= ~type;
}
}
}
- cfs_list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
+ if (list_empty(&lfsck->li_list_scan)) {
+ /* The speed limit will be used to control both the LFSCK and
+ * low layer scrub (if applied), need to be handled firstly. */
+ if (start->ls_valid & LSV_SPEED_LIMIT) {
+ if (__lfsck_set_speed(lfsck, start->ls_speed_limit)) {
+ rc = lfsck_bookmark_store(env, lfsck);
+ if (rc != 0)
+ GOTO(out, rc);
+ }
+ }
+
+ goto trigger;
+ }
+
+ if (start->ls_flags & LPF_RESET)
+ flags |= DOIF_RESET;
+
+ rc = lfsck_set_param(env, lfsck, start, !!(flags & DOIF_RESET));
+ if (rc != 0)
+ GOTO(out, rc);
+
+ list_for_each_entry(com, &lfsck->li_list_scan, lc_link) {
start->ls_active |= com->lc_type;
if (flags & DOIF_RESET) {
rc = com->lc_ops->lfsck_reset(env, com, false);
if (bk->lb_param & LPF_DRYRUN)
lfsck->li_args_dir |= LUDA_VERIFY_DRYRUN;
- if (bk->lb_param & LPF_FAILOUT) {
+ if (start != NULL && start->ls_valid & LSV_ERROR_HANDLE) {
valid |= DOIV_ERROR_HANDLE;
- flags |= DOIF_FAILOUT;
+ if (start->ls_flags & LPF_FAILOUT)
+ flags |= DOIF_FAILOUT;
+ }
+
+ if (start != NULL && start->ls_valid & LSV_DRYRUN) {
+ valid |= DOIV_DRYRUN;
+ if (start->ls_flags & LPF_DRYRUN)
+ flags |= DOIF_DRYRUN;
}
- if (!cfs_list_empty(&lfsck->li_list_scan))
+ if (!list_empty(&lfsck->li_list_scan))
flags |= DOIF_OUTUSED;
lfsck->li_args_oit = (flags << DT_OTABLE_IT_FLAGS_SHIFT) | valid;
thread_set_flags(thread, 0);
- if (lfsck->li_master)
- rc = cfs_create_thread(lfsck_master_engine, lfsck, 0);
- if (rc < 0)
- CERROR("%s: cannot start LFSCK thread, rc = %d\n",
+ lta = lfsck_thread_args_init(lfsck, NULL, lsp);
+ if (IS_ERR(lta))
+ GOTO(out, rc = PTR_ERR(lta));
+
+ __lfsck_set_speed(lfsck, bk->lb_speed_limit);
+ task = kthread_run(lfsck_master_engine, lta, "lfsck");
+ if (IS_ERR(task)) {
+ rc = PTR_ERR(task);
+ CERROR("%s: cannot start LFSCK thread: rc = %d\n",
lfsck_lfsck2name(lfsck), rc);
- else
- l_wait_event(thread->t_ctl_waitq,
- thread_is_running(thread) ||
- thread_is_stopped(thread),
- &lwi);
+ lfsck_thread_args_fini(lta);
- GOTO(out, rc = 0);
+ GOTO(out, rc);
+ }
+
+ l_wait_event(thread->t_ctl_waitq,
+ thread_is_running(thread) ||
+ thread_is_stopped(thread),
+ &lwi);
+ if (start == NULL || !(start->ls_flags & LPF_BROADCAST)) {
+ lfsck->li_start_unplug = 1;
+ wake_up_all(&thread->t_ctl_waitq);
+
+ GOTO(out, rc = 0);
+ }
+
+ /* release lfsck::li_mutex to avoid deadlock. */
+ mutex_unlock(&lfsck->li_mutex);
+ rc = lfsck_start_all(env, lfsck, start);
+ if (rc != 0) {
+ spin_lock(&lfsck->li_lock);
+ if (thread_is_stopped(thread)) {
+ spin_unlock(&lfsck->li_lock);
+ } else {
+ lfsck->li_status = LS_FAILED;
+ lfsck->li_flags = 0;
+ thread_set_flags(thread, SVC_STOPPING);
+ spin_unlock(&lfsck->li_lock);
+
+ lfsck->li_start_unplug = 1;
+ wake_up_all(&thread->t_ctl_waitq);
+ l_wait_event(thread->t_ctl_waitq,
+ thread_is_stopped(thread),
+ &lwi);
+ }
+ } else {
+ lfsck->li_start_unplug = 1;
+ wake_up_all(&thread->t_ctl_waitq);
+ }
+
+ GOTO(put, rc);
out:
mutex_unlock(&lfsck->li_mutex);
+
put:
lfsck_instance_put(env, lfsck);
- return (rc < 0 ? rc : 0);
+
+ return rc < 0 ? rc : 0;
}
EXPORT_SYMBOL(lfsck_start);
-int lfsck_stop(const struct lu_env *env, struct dt_device *key, bool pause)
+int lfsck_stop(const struct lu_env *env, struct dt_device *key,
+ struct lfsck_stop *stop)
{
struct lfsck_instance *lfsck;
struct ptlrpc_thread *thread;
struct l_wait_info lwi = { 0 };
+ int rc = 0;
+ int rc1 = 0;
ENTRY;
lfsck = lfsck_instance_find(key, true, false);
if (unlikely(lfsck == NULL))
- RETURN(-ENODEV);
+ RETURN(-ENXIO);
thread = &lfsck->li_thread;
+ /* release lfsck::li_mutex to avoid deadlock. */
+ if (stop != NULL && stop->ls_flags & LPF_BROADCAST) {
+ if (!lfsck->li_master) {
+ CERROR("%s: only allow to specify '-A' via MDS\n",
+ lfsck_lfsck2name(lfsck));
+
+ GOTO(out, rc = -EPERM);
+ }
+
+ rc1 = lfsck_stop_all(env, lfsck, stop);
+ }
+
mutex_lock(&lfsck->li_mutex);
spin_lock(&lfsck->li_lock);
+ /* no error if LFSCK is already stopped, or was never started */
if (thread_is_init(thread) || thread_is_stopped(thread)) {
spin_unlock(&lfsck->li_lock);
- mutex_unlock(&lfsck->li_mutex);
- lfsck_instance_put(env, lfsck);
- RETURN(-EALREADY);
+ GOTO(out, rc = 0);
+ }
+
+ if (stop != NULL) {
+ lfsck->li_status = stop->ls_status;
+ lfsck->li_flags = stop->ls_flags;
+ } else {
+ lfsck->li_status = LS_STOPPED;
+ lfsck->li_flags = 0;
}
- if (pause)
- lfsck->li_paused = 1;
thread_set_flags(thread, SVC_STOPPING);
- /* The LFSCK thread may be sleeping on low layer wait queue,
- * wake it up. */
- if (likely(lfsck->li_di_oit != NULL))
- lfsck->li_obj_oit->do_index_ops->dio_it.put(env,
- lfsck->li_di_oit);
spin_unlock(&lfsck->li_lock);
- cfs_waitq_broadcast(&thread->t_ctl_waitq);
+ wake_up_all(&thread->t_ctl_waitq);
l_wait_event(thread->t_ctl_waitq,
thread_is_stopped(thread),
&lwi);
+
+ GOTO(out, rc = 0);
+
+out:
mutex_unlock(&lfsck->li_mutex);
lfsck_instance_put(env, lfsck);
- RETURN(0);
+ return rc != 0 ? rc : rc1;
}
EXPORT_SYMBOL(lfsck_stop);
+int lfsck_in_notify(const struct lu_env *env, struct dt_device *key,
+ struct lfsck_request *lr)
+{
+ int rc = -EOPNOTSUPP;
+ ENTRY;
+
+ switch (lr->lr_event) {
+ case LE_START: {
+ struct lfsck_start *start = &lfsck_env_info(env)->lti_start;
+ struct lfsck_start_param lsp;
+
+ memset(start, 0, sizeof(*start));
+ start->ls_valid = lr->lr_valid;
+ start->ls_speed_limit = lr->lr_speed;
+ start->ls_version = lr->lr_version;
+ start->ls_active = lr->lr_active;
+ start->ls_flags = lr->lr_param & ~LPF_BROADCAST;
+ start->ls_async_windows = lr->lr_async_windows;
+
+ lsp.lsp_start = start;
+ lsp.lsp_index = lr->lr_index;
+ lsp.lsp_index_valid = 1;
+ rc = lfsck_start(env, key, &lsp);
+ break;
+ }
+ case LE_STOP: {
+ struct lfsck_stop *stop = &lfsck_env_info(env)->lti_stop;
+
+ memset(stop, 0, sizeof(*stop));
+ stop->ls_status = lr->lr_status;
+ stop->ls_flags = lr->lr_param & ~LPF_BROADCAST;
+ rc = lfsck_stop(env, key, stop);
+ break;
+ }
+ case LE_PHASE1_DONE:
+ case LE_PHASE2_DONE:
+ case LE_FID_ACCESSED:
+ case LE_PEER_EXIT:
+ case LE_CONDITIONAL_DESTROY:
+ case LE_PAIRS_VERIFY: {
+ struct lfsck_instance *lfsck;
+ struct lfsck_component *com;
+
+ lfsck = lfsck_instance_find(key, true, false);
+ if (unlikely(lfsck == NULL))
+ RETURN(-ENXIO);
+
+ com = lfsck_component_find(lfsck, lr->lr_active);
+ if (likely(com != NULL)) {
+ rc = com->lc_ops->lfsck_in_notify(env, com, lr);
+ lfsck_component_put(env, com);
+ }
+
+ lfsck_instance_put(env, lfsck);
+ break;
+ }
+ default:
+ break;
+ }
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_in_notify);
+
+int lfsck_query(const struct lu_env *env, struct dt_device *key,
+ struct lfsck_request *lr)
+{
+ struct lfsck_instance *lfsck;
+ struct lfsck_component *com;
+ int rc;
+ ENTRY;
+
+ lfsck = lfsck_instance_find(key, true, false);
+ if (unlikely(lfsck == NULL))
+ RETURN(-ENXIO);
+
+ com = lfsck_component_find(lfsck, lr->lr_active);
+ if (likely(com != NULL)) {
+ rc = com->lc_ops->lfsck_query(env, com);
+ lfsck_component_put(env, com);
+ } else {
+ rc = -ENOTSUPP;
+ }
+
+ lfsck_instance_put(env, lfsck);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_query);
+
+int lfsck_register_namespace(const struct lu_env *env, struct dt_device *key,
+ struct ldlm_namespace *ns)
+{
+ struct lfsck_instance *lfsck;
+ int rc = -ENXIO;
+
+ lfsck = lfsck_instance_find(key, true, false);
+ if (likely(lfsck != NULL)) {
+ lfsck->li_namespace = ns;
+ lfsck_instance_put(env, lfsck);
+ rc = 0;
+ }
+
+ return rc;
+}
+EXPORT_SYMBOL(lfsck_register_namespace);
+
int lfsck_register(const struct lu_env *env, struct dt_device *key,
- struct dt_device *next, bool master)
+ struct dt_device *next, struct obd_device *obd,
+ lfsck_out_notify notify, void *notify_data, bool master)
{
struct lfsck_instance *lfsck;
- struct dt_object *root;
- struct dt_object *obj;
+ struct dt_object *root = NULL;
+ struct dt_object *obj = NULL;
struct lu_fid *fid = &lfsck_env_info(env)->lti_fid;
int rc;
ENTRY;
CFS_INIT_LIST_HEAD(&lfsck->li_list_double_scan);
CFS_INIT_LIST_HEAD(&lfsck->li_list_idle);
atomic_set(&lfsck->li_ref, 1);
- cfs_waitq_init(&lfsck->li_thread.t_ctl_waitq);
+ atomic_set(&lfsck->li_double_scan_count, 0);
+ init_waitqueue_head(&lfsck->li_thread.t_ctl_waitq);
+ lfsck->li_out_notify = notify;
+ lfsck->li_out_notify_data = notify_data;
lfsck->li_next = next;
lfsck->li_bottom = key;
+ lfsck->li_obd = obd;
+
+ rc = lfsck_tgt_descs_init(&lfsck->li_ost_descs);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ rc = lfsck_tgt_descs_init(&lfsck->li_mdt_descs);
+ if (rc != 0)
+ GOTO(out, rc);
fid->f_seq = FID_SEQ_LOCAL_NAME;
fid->f_oid = 1;
fid->f_ver = 0;
- rc = local_oid_storage_init(env, lfsck->li_bottom, fid, &lfsck->li_los);
+ rc = local_oid_storage_init(env, key, fid, &lfsck->li_los);
if (rc != 0)
GOTO(out, rc);
if (rc != 0)
GOTO(out, rc);
- root = dt_locate(env, lfsck->li_bottom, fid);
+ root = dt_locate(env, key, fid);
if (IS_ERR(root))
GOTO(out, rc = PTR_ERR(root));
- lfsck->li_local_root = root;
- dt_try_as_dir(env, root);
+ if (unlikely(!dt_try_as_dir(env, root)))
+ GOTO(out, rc = -ENOTDIR);
+
+ lfsck->li_local_root_fid = *fid;
if (master) {
lfsck->li_master = 1;
- if (lfsck_dev_idx(lfsck->li_bottom) == 0) {
+ if (lfsck_dev_idx(key) == 0) {
+ struct lu_fid *pfid = &lfsck_env_info(env)->lti_fid2;
+ const struct lu_name *cname;
+
rc = dt_lookup(env, root,
(struct dt_rec *)(&lfsck->li_global_root_fid),
(const struct dt_key *)"ROOT", BYPASS_CAPA);
if (rc != 0)
GOTO(out, rc);
+
+ obj = dt_locate(env, key, &lfsck->li_global_root_fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ rc = dt_lookup(env, obj, (struct dt_rec *)fid,
+ (const struct dt_key *)dotlustre, BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ lu_object_put(env, &obj->do_lu);
+ obj = dt_locate(env, key, fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ cname = lfsck_name_get_const(env, dotlustre,
+ strlen(dotlustre));
+ rc = lfsck_verify_linkea(env, key, obj, cname,
+ &lfsck->li_global_root_fid);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ *pfid = *fid;
+ rc = dt_lookup(env, obj, (struct dt_rec *)fid,
+ (const struct dt_key *)lostfound,
+ BYPASS_CAPA);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ lu_object_put(env, &obj->do_lu);
+ obj = dt_locate(env, key, fid);
+ if (IS_ERR(obj))
+ GOTO(out, rc = PTR_ERR(obj));
+
+ cname = lfsck_name_get_const(env, lostfound,
+ strlen(lostfound));
+ rc = lfsck_verify_linkea(env, key, obj, cname, pfid);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ lu_object_put(env, &obj->do_lu);
+ obj = NULL;
}
}
fid->f_seq = FID_SEQ_LOCAL_FILE;
fid->f_oid = OTABLE_IT_OID;
fid->f_ver = 0;
- obj = dt_locate(env, lfsck->li_bottom, fid);
+ obj = dt_locate(env, key, fid);
if (IS_ERR(obj))
GOTO(out, rc = PTR_ERR(obj));
+ lu_object_get(&obj->do_lu);
lfsck->li_obj_oit = obj;
rc = obj->do_ops->do_index_try(env, obj, &dt_otable_features);
- if (rc != 0) {
- if (rc == -ENOTSUPP)
- GOTO(add, rc = 0);
-
+ if (rc != 0)
GOTO(out, rc);
- }
rc = lfsck_bookmark_setup(env, lfsck);
if (rc != 0)
GOTO(out, rc);
if (master) {
+ rc = lfsck_fid_init(lfsck);
+ if (rc < 0)
+ GOTO(out, rc);
+
rc = lfsck_namespace_setup(env, lfsck);
if (rc < 0)
GOTO(out, rc);
}
+ rc = lfsck_layout_setup(env, lfsck);
+ if (rc < 0)
+ GOTO(out, rc);
+
/* XXX: more LFSCK components initialization to be added here. */
-add:
rc = lfsck_instance_add(lfsck);
+ if (rc == 0)
+ rc = lfsck_add_target_from_orphan(env, lfsck);
out:
+ if (obj != NULL && !IS_ERR(obj))
+ lu_object_put(env, &obj->do_lu);
+ if (root != NULL && !IS_ERR(root))
+ lu_object_put(env, &root->do_lu);
if (rc != 0)
lfsck_instance_cleanup(env, lfsck);
return rc;
}
EXPORT_SYMBOL(lfsck_degister);
+int lfsck_add_target(const struct lu_env *env, struct dt_device *key,
+ struct dt_device *tgt, struct obd_export *exp,
+ __u32 index, bool for_ost)
+{
+ struct lfsck_instance *lfsck;
+ struct lfsck_tgt_desc *ltd;
+ int rc;
+ ENTRY;
+
+ OBD_ALLOC_PTR(ltd);
+ if (ltd == NULL)
+ RETURN(-ENOMEM);
+
+ ltd->ltd_tgt = tgt;
+ ltd->ltd_key = key;
+ ltd->ltd_exp = exp;
+ INIT_LIST_HEAD(<d->ltd_orphan_list);
+ INIT_LIST_HEAD(<d->ltd_layout_list);
+ INIT_LIST_HEAD(<d->ltd_layout_phase_list);
+ atomic_set(<d->ltd_ref, 1);
+ ltd->ltd_index = index;
+
+ spin_lock(&lfsck_instance_lock);
+ lfsck = __lfsck_instance_find(key, true, false);
+ if (lfsck == NULL) {
+ if (for_ost)
+ list_add_tail(<d->ltd_orphan_list,
+ &lfsck_ost_orphan_list);
+ else
+ list_add_tail(<d->ltd_orphan_list,
+ &lfsck_mdt_orphan_list);
+ spin_unlock(&lfsck_instance_lock);
+
+ RETURN(0);
+ }
+ spin_unlock(&lfsck_instance_lock);
+
+ rc = __lfsck_add_target(env, lfsck, ltd, for_ost, false);
+ if (rc != 0)
+ lfsck_tgt_put(ltd);
+
+ lfsck_instance_put(env, lfsck);
+
+ RETURN(rc);
+}
+EXPORT_SYMBOL(lfsck_add_target);
+
+void lfsck_del_target(const struct lu_env *env, struct dt_device *key,
+ struct dt_device *tgt, __u32 index, bool for_ost)
+{
+ struct lfsck_instance *lfsck;
+ struct lfsck_tgt_descs *ltds;
+ struct lfsck_tgt_desc *ltd;
+ struct list_head *head;
+
+ if (for_ost)
+ head = &lfsck_ost_orphan_list;
+ else
+ head = &lfsck_mdt_orphan_list;
+
+ spin_lock(&lfsck_instance_lock);
+ list_for_each_entry(ltd, head, ltd_orphan_list) {
+ if (ltd->ltd_tgt == tgt) {
+ list_del_init(<d->ltd_orphan_list);
+ spin_unlock(&lfsck_instance_lock);
+ lfsck_tgt_put(ltd);
+
+ return;
+ }
+ }
+
+ ltd = NULL;
+ lfsck = __lfsck_instance_find(key, true, false);
+ spin_unlock(&lfsck_instance_lock);
+ if (unlikely(lfsck == NULL))
+ return;
+
+ if (for_ost)
+ ltds = &lfsck->li_ost_descs;
+ else
+ ltds = &lfsck->li_mdt_descs;
+
+ down_write(<ds->ltd_rw_sem);
+ LASSERT(ltds->ltd_tgts_bitmap != NULL);
+
+ if (unlikely(index >= ltds->ltd_tgts_bitmap->size))
+ goto unlock;
+
+ ltd = LTD_TGT(ltds, index);
+ if (unlikely(ltd == NULL))
+ goto unlock;
+
+ LASSERT(ltds->ltd_tgtnr > 0);
+
+ ltds->ltd_tgtnr--;
+ cfs_bitmap_clear(ltds->ltd_tgts_bitmap, index);
+ LTD_TGT(ltds, index) = NULL;
+
+unlock:
+ if (ltd == NULL) {
+ if (for_ost)
+ head = &lfsck->li_ost_descs.ltd_orphan;
+ else
+ head = &lfsck->li_mdt_descs.ltd_orphan;
+
+ list_for_each_entry(ltd, head, ltd_orphan_list) {
+ if (ltd->ltd_tgt == tgt) {
+ list_del_init(<d->ltd_orphan_list);
+ break;
+ }
+ }
+ }
+
+ up_write(<ds->ltd_rw_sem);
+ if (ltd != NULL) {
+ spin_lock(<ds->ltd_lock);
+ ltd->ltd_dead = 1;
+ spin_unlock(<ds->ltd_lock);
+ lfsck_stop_notify(env, lfsck, ltds, ltd, LFSCK_TYPE_LAYOUT);
+ lfsck_tgt_put(ltd);
+ }
+
+ lfsck_instance_put(env, lfsck);
+}
+EXPORT_SYMBOL(lfsck_del_target);
+
static int __init lfsck_init(void)
{
int rc;
+ INIT_LIST_HEAD(&lfsck_ost_orphan_list);
+ INIT_LIST_HEAD(&lfsck_mdt_orphan_list);
lfsck_key_init_generic(&lfsck_thread_key, NULL);
rc = lu_context_key_register(&lfsck_thread_key);
+ if (rc == 0) {
+ tgt_register_lfsck_in_notify(lfsck_in_notify);
+ tgt_register_lfsck_query(lfsck_query);
+ }
+
return rc;
}
static void __exit lfsck_exit(void)
{
+ struct lfsck_tgt_desc *ltd;
+ struct lfsck_tgt_desc *next;
+
LASSERT(cfs_list_empty(&lfsck_instance_list));
+ list_for_each_entry_safe(ltd, next, &lfsck_ost_orphan_list,
+ ltd_orphan_list) {
+ list_del_init(<d->ltd_orphan_list);
+ lfsck_tgt_put(ltd);
+ }
+
+ list_for_each_entry_safe(ltd, next, &lfsck_mdt_orphan_list,
+ ltd_orphan_list) {
+ list_del_init(<d->ltd_orphan_list);
+ lfsck_tgt_put(ltd);
+ }
+
lu_context_key_degister(&lfsck_thread_key);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff