LU-11466 mdt: Skip SOM xattr update for DoM-only files

[fs/lustre-release.git] / lustre / mdt / mdt_som.c

diff --git a/lustre/mdt/mdt_som.c b/lustre/mdt/mdt_som.c
index 8636c61..3eebe03 100644 (file)
--- a/lustre/mdt/mdt_som.c
+++ b/lustre/mdt/mdt_som.c
@@ -196,23 +196,30 @@ int mdt_lsom_update(struct mdt_thread_info *info,
        if (rc)
                GOTO(out_lock, rc);
 
-       rc = mo_xattr_get(info->mti_env, mdt_object_child(o), &LU_BUF_NULL,
-                         XATTR_NAME_LOV);
-       if (rc < 0 && rc != -ENODATA)
-               GOTO(out_lock, rc);
-       else if (rc > 0) /* has LOV EA*/
-               tmp_ma->ma_valid |= MA_LOV;
+       /**
+        * If mti_big_lmm_used is set, it indicates that mti_big_lmm
+        * should contain valid LOV EA data, and can be used directly.
+        */
+       if (!info->mti_big_lmm_used) {
+               rc = mdt_big_xattr_get(info, o, XATTR_NAME_LOV);
+               if (rc < 0 && rc != -ENODATA)
+                       GOTO(out_lock, rc);
+
+               /* No LOV EA */
+               if (rc == -ENODATA)
+                       GOTO(out_lock, rc = 0);
+
+               rc = 0;
+       }
 
-       rc = 0;
        /**
         * Check if a Lazy Size-on-MDS update is needed. Skip the
-        * file with no LOV EA or unlink files.
+        * file with no LOV EA, unlink files or DoM-only file.
         * MDS only updates LSOM of the file if the size or block
         * size is being increased or the file is being truncated.
         */
-       if ((tmp_ma->ma_valid & MA_LOV) &&
-           !(tmp_ma->ma_valid & MA_INODE &&
-             tmp_ma->ma_attr.la_nlink == 0)) {
+       if (mdt_lmm_dom_entry(info->mti_big_lmm) != LMM_DOM_ONLY &&
+           !(tmp_ma->ma_valid & MA_INODE && tmp_ma->ma_attr.la_nlink == 0)) {
                __u64 size;
                __u64 blocks;
                bool changed = false;