From: Chris Mason <chris.mason@oracle.com>
Date: Sun, 28 Jun 2009 01:06:22 +0000 (-0400)
Subject: Btrfs: don't log the inode in file_write while growing the file
X-Git-Tag: v2.6.31-rc2~10^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f597bb19ccd034cbcf05e1194238e2c8d9505a8a;p=platform%2Fkernel%2Flinux-3.10.git

Btrfs: don't log the inode in file_write while growing the file
---

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 126477e..7c3cd24 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -151,7 +151,10 @@ 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: