Btrfs: do not call btrfs_update_inode in endio if nothing changed

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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>

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This commit is contained in:

Josef Bacik 2011-04-05 19:25:36 -04:00

parent 12ddb96cb6

commit 1ef30be142

1 changed files with 10 additions and 5 deletions

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fs/btrfs/inode.c

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