On 19.07.2018 14:05, David Sterba wrote: > A handful of removed structure members that are not used, > async_submit_bio is down by 16 bytes and async_cow by 8. > > Some of the extent_io_ops callbacks are unnecessarily called indirectly. > The rest of extent_io_ops is going to be transformed in following > series. > > David Sterba (7): > btrfs: remove unused member async_submit_bio::fs_info > btrfs: remove unused member async_submit_bio::bio_flags > btrfs: remove redundant member async_cow::root > btrfs: unify end_io callbacks of async_submit_bio > btrfs: drop extent_io_ops::tree_fs_info callback > btrfs: drop extent_io_ops::merge_bio_hook callback > btrfs: drop extent_io_ops::set_range_writeback callback > > fs/btrfs/compression.c | 10 +++------- > fs/btrfs/ctree.h | 2 +- > fs/btrfs/disk-io.c | 42 +++--------------------------------------- > fs/btrfs/disk-io.h | 5 +++-- > fs/btrfs/extent_io.c | 28 +++++++--------------------- > fs/btrfs/extent_io.h | 8 -------- > fs/btrfs/inode.c | 32 ++++++++------------------------ > 7 files changed, 25 insertions(+), 102 deletions(-) > For the whole series (apart from my comments on 6/7): Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx> I'm guessing this will alleviate some of the performance hit stemming from spectre/meltdown mitigations. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
