src/patches/suse-2.6.27.31/patches.fixes/ext2_mtime_update_on_rename.diff

   1 From: Jan Kara <jack@suse.cz>
   2 Subject: [PATCH] ext2: Do not update mtime of a move directory when parent has not changed
   3 References: bnc#493392
   4 Patch-mainline: 2.6.30
   5
   6 If the parent of the moved directory has not changed, there's no real
   7 reason to change mtime. Specs doesn't seem to say anything about this
   8 particular case and e.g. ext3 does not change mtime in this case.
   9 So we become a tiny bit more consistent.
  10
  11 Spotted by ronny.pretzsch@dfs.de, initial fix by Jörn Engel <joern@logfs.org>.
  12
  13 Signed-off-by: Jan Kara <jack@suse.cz>
  14 ---
  15  fs/ext2/namei.c |    5 ++++-
  16  1 file changed, 4 insertions(+), 1 deletion(-)
  17
  18 --- a/fs/ext2/namei.c
  19 +++ b/fs/ext2/namei.c
  20 @@ -355,7 +355,10 @@ static int ext2_rename (struct inode * o
  21         inode_dec_link_count(old_inode);
  22
  23         if (dir_de) {
  24 -               ext2_set_link(old_inode, dir_de, dir_page, new_dir);
  25 +               /* Set link only if parent has changed and thus avoid setting
  26 +                * of mtime of the moved directory on a pure rename. */
  27 +               if (old_dir != new_dir)
  28 +                       ext2_set_link(old_inode, dir_de, dir_page, new_dir);
  29                 inode_dec_link_count(old_dir);
  30         }
  31         return 0;