LU-10055 mdt: use max_mdsize in reply for layout intent

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

diff --git a/lustre/mdt/mdt_lvb.c b/lustre/mdt/mdt_lvb.c
index d4c5097..83918f7 100644 (file)
--- a/lustre/mdt/mdt_lvb.c
+++ b/lustre/mdt/mdt_lvb.c
@@ -159,8 +159,22 @@ static int mdt_lvbo_fill(struct ldlm_lock *lock, void *lvb, int lvblen)
                struct lu_buf *lmm = NULL;
 
                if (lvblen < rc) {
-                       CERROR("%s: expected %d actual %d.\n",
-                               mdt_obd_name(mdt), rc, lvblen);
+                       int level;
+
+                       /* The layout EA may be larger than mdt_max_mdsize
+                        * and in that case mdt_max_mdsize is just updated
+                        * but if EA size is less than mdt_max_mdsize then
+                        * it is an error in lvblen value provided. */
+                       if (rc > info->mti_mdt->mdt_max_mdsize) {
+                               info->mti_mdt->mdt_max_mdsize = rc;
+                               level = D_INFO;
+                       } else {
+                               level = D_ERROR;
+                       }
+                       CDEBUG_LIMIT(level, "%s: small buffer size %d for EA "
+                                    "%d (max_mdsize %d): rc = %d\n",
+                                    mdt_obd_name(mdt), lvblen, rc,
+                                    info->mti_mdt->mdt_max_mdsize, -ERANGE);
                        GOTO(out, rc = -ERANGE);
                }