LU-5519 lfsck: repair slave LMV for striped directory

[fs/lustre-release.git] / lustre / lfsck / lfsck_internal.h

diff --git a/lustre/lfsck/lfsck_internal.h b/lustre/lfsck/lfsck_internal.h
index 5032d15..38d57c4 100644 (file)
--- a/lustre/lfsck/lfsck_internal.h
+++ b/lustre/lfsck/lfsck_internal.h
@@ -519,6 +519,16 @@ struct lfsck_component {
 #define LFSCK_LMV_MAX_STRIPES  LMV_MAX_STRIPE_COUNT
 #define LFSCK_LMV_DEF_STRIPES  4
 
+/* Warning: NOT change the lfsck_slave_lmv_flags members order,
+ *         otherwise the lfsck_record_lmv() may be wrong. */
+enum lfsck_slave_lmv_flags {
+       LSLF_NONE       = 0,
+       LSLF_BAD_INDEX2 = 1,
+       LSLF_NO_LMVEA   = 2,
+       LSLF_DANGLING   = 3,
+       LSLF_BAD_INDEX1 = 4,
+};
+
 /* When the namespace LFSCK scans a striped directory, it will record all
  * the known shards' information in the structure "lfsck_slave_lmv_rec",
  * including the shard's FID, index, slave LMV EA, and so on. Each shard
@@ -567,6 +577,14 @@ struct lfsck_lmv_unit {
        struct lfsck_instance   *llu_lfsck;
 };
 
+struct lfsck_rec_lmv_save {
+       struct lu_fid           lrls_fid;
+       struct lmv_mds_md_v1    lrls_lmv;
+};
+
+/* Allow lfsck_record_lmv() to be called recursively at most three times. */
+#define LFSCK_REC_LMV_MAX_DEPTH 3
+
 struct lfsck_instance {
        struct mutex              li_mutex;
        spinlock_t                li_lock;
@@ -667,6 +685,7 @@ struct lfsck_instance {
                                  li_master:1, /* Master instance or not. */
                                  li_current_oit_processed:1,
                                  li_start_unplug:1;
+       struct lfsck_rec_lmv_save li_rec_lmv_save[LFSCK_REC_LMV_MAX_DEPTH];
 };
 
 struct lfsck_async_interpret_args {
@@ -899,6 +918,9 @@ int lfsck_namespace_trace_update(const struct lu_env *env,
                                 struct lfsck_component *com,
                                 const struct lu_fid *fid,
                                 const __u8 flags, bool add);
+int lfsck_namespace_check_exist(const struct lu_env *env,
+                               struct dt_object *dir,
+                               struct dt_object *obj, const char *name);
 int __lfsck_links_read(const struct lu_env *env, struct dt_object *obj,
                       struct linkea_data *ldata);
 int lfsck_namespace_rebuild_linkea(const struct lu_env *env,
@@ -967,6 +989,9 @@ int lfsck_namespace_repair_bad_name_hash(const struct lu_env *env,
 int lfsck_namespace_striped_dir_rescan(const struct lu_env *env,
                                       struct lfsck_component *com,
                                       struct lfsck_namespace_req *lnr);
+int lfsck_namespace_handle_striped_master(const struct lu_env *env,
+                                         struct lfsck_component *com,
+                                         struct lfsck_namespace_req *lnr);
 
 /* lfsck_layout.c */
 int lfsck_layout_setup(const struct lu_env *env, struct lfsck_instance *lfsck);