1 files changed, 4 insertions, 2 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 126477eaecf5..4b833972273a 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -22,7 +22,6 @@
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/string.h>
-#include <linux/smp_lock.h>
 #include <linux/backing-dev.h>
 #include <linux/mpage.h>
 #include <linux/swap.h>
@@ -151,7 +150,10 @@ static noinline int dirty_and_release_pages(struct btrfs_trans_handle *trans,
         }
         if (end_pos > isize) {
                 i_size_write(inode, end_pos);
-                btrfs_update_inode(trans, root, inode);
+                /* we've only changed i_size in ram, and we haven't updated
+                 * the disk i_size.  There is no need to log the inode
+                 * at this time.
+                 */
         }
         err = btrfs_end_transaction(trans, root);
 out_unlock: