| commit | 1ef30be142d2cc60e2687ef267de864cf31be995 | |
| author | Josef Bacik <josef@redhat.com> | |
| Tue, 5 Apr 2011 23:25:36 +0000 (5 19:25 -0400) | ||
| committer | Josef Bacik <josef@redhat.com> | |
| Fri, 8 Apr 2011 17:00:36 +0000 (8 13:00 -0400) | ||
| tree | dbbde7067995b62e4123b44b3c62d7b5efc9ee24 | treesnapshot (tar.gz zip) |
| parent | 12ddb96cb6752218d8a1aeb696ec9b0ca7adb42f | commitdiff |
Btrfs: do not call btrfs_update_inode in endio if nothing changed
In the DIO code we often don't update the i_disk_size because the i_size isn't
updated until after the DIO is completed, so basically we are allocating a path,
doing a search, and updating the inode item for no reason since nothing changed.
btrfs_ordered_update_i_size will return 1 if it didn't update i_disk_size, so
only run btrfs_update_inode if btrfs_ordered_update_i_size returns 0. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
In the DIO code we often don't update the i_disk_size because the i_size isn't
updated until after the DIO is completed, so basically we are allocating a path,
doing a search, and updating the inode item for no reason since nothing changed.
btrfs_ordered_update_i_size will return 1 if it didn't update i_disk_size, so
only run btrfs_update_inode if btrfs_ordered_update_i_size returns 0. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
| fs/btrfs/inode.c | diffblobblamehistory |