LU-9538 mdt: Lazy size on MDT

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

diff --git a/lustre/mdt/mdt_reint.c b/lustre/mdt/mdt_reint.c
index 602072d..9069dc6 100644 (file)
--- a/lustre/mdt/mdt_reint.c
+++ b/lustre/mdt/mdt_reint.c
@@ -707,6 +707,15 @@ static int mdt_reint_setattr(struct mdt_thread_info *info,
                        if (rc > 0 && mdt_lmm_is_flr(info->mti_big_lmm))
                                GOTO(out_put, rc = -EOPNOTSUPP);
                }
+
+               /* For truncate, the file size sent from client
+                * is believable, but the blocks are incorrect,
+                * which makes the block size in LSOM attribute
+                * inconsisent with the real block size.
+                */
+               rc = mdt_lsom_update(info, mo, true);
+               if (rc)
+                       GOTO(out_put, rc);
        }
 
        if ((ma->ma_valid & MA_INODE) && ma->ma_attr.la_valid) {