LU-8301 lfsck: handle ROOT fid properly

[fs/lustre-release.git] / lustre / lfsck / lfsck_lib.c

diff --git a/lustre/lfsck/lfsck_lib.c b/lustre/lfsck/lfsck_lib.c
index 634b451..e3be947 100644 (file)
--- a/lustre/lfsck/lfsck_lib.c
+++ b/lustre/lfsck/lfsck_lib.c
@@ -531,6 +531,14 @@ int lfsck_find_mdt_idx_by_fid(const struct lu_env *env,
        struct lu_seq_range     *range  = &lfsck_env_info(env)->lti_range;
        int                      rc;
 
+       if (unlikely(fid_seq(fid) == FID_SEQ_LOCAL_FILE)) {
+               /* "ROOT" is always on the MDT0. */
+               if (lu_fid_eq(fid, &lfsck->li_global_root_fid))
+                       return 0;
+
+               return lfsck_dev_idx(lfsck);
+       }
+
        fld_range_set_mdt(range);
        rc = fld_server_lookup(env, ss->ss_server_fld, fid_seq(fid), range);
        if (rc == 0)