On Thu, Nov 22, 2018 at 10:17:49AM +0200, Nikolay Borisov wrote: > For data inodes this hook does nothing but to return -EAGAIN which is > used to signal to the endio routines that this bio belongs to a data > inode. If this is the case the actual retrying is handled by > bio_readpage_error. Alternatively, if this bio belongs to the btree > inode then btree_io_failed_hook just does some cleanup and doesn't > retry anything. > > This patch simplifies the code flow by eliminating > readpage_io_failed_hook and instead open-coding btree_io_failed_hook in > end_bio_extent_readpage. Also eliminate some needless checks since IO is always > performed on either data inode or btree inode, both of which are guaranteed to > have their extent_io_tree::ops set. > > Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
