Random assortment of refactoring and trivial cleanups; Immutable bio vecs and efficient bio splitting require auditing and removing pretty much all bi_idx uses, among other things. The reason is that with immutable bio vecs we can't use the bvec array directly; if we have a partially completed bvec, that'll be indicated with a field in struct bvec_iter (which gets embedded in struct bio) - bi_bvec_done. bio_for_each_segments() will handle this transparently, so code needs to be converted to use it or some other generic accessor. Also, bio splitting means that when a driver gets a bio, bi_idx and bi_bvec_done may both be nonzero. Again, just need to use generic accessors. v2: Patch series now has all the prep work to be done before abstracting out the bio iterator, I think. Kent Overstreet (26): block: Convert integrity to bvec_alloc_bs(), and a bugfix block: Add bio_advance() block: Refactor blk_update_request() md: Convert md_trim_bio() to use bio_advance() block: Add bio_end() block: Use bio_sectors() more consistently block: Don't use bi_idx in bio_split() or require it to be 0 block: Remove bi_idx references block: Remove some unnecessary bi_vcnt usage block: Add submit_bio_wait(), remove from md raid10: Use bio_reset() raid1: use bio_reset() raid5: use bio_reset() raid1: Refactor narrow_write_error() to not use bi_idx block: Add bio_copy_data() pktcdvd: use bio_copy_data() pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage raid1: use bio_copy_data() bounce: Refactor __blk_queue_bounce to not use bi_io_vec block: Add bio_for_each_segment_all() block: Convert some code to bio_for_each_segment_all() block: Add bio_alloc_pages() raid1: use bio_alloc_pages() block: Add an explicit bio flag for bios that own their bvec bio-integrity: Add explicit field for owner of bip_buf block: Add BIO_SUBMITTED flag, kill BIO_CLONED block/blk-core.c | 88 +++--------- block/cfq-iosched.c | 7 +- block/deadline-iosched.c | 2 +- drivers/block/aoe/aoeblk.c | 2 +- drivers/block/aoe/aoecmd.c | 2 +- drivers/block/brd.c | 3 +- drivers/block/drbd/drbd_req.c | 8 +- drivers/block/floppy.c | 1 - drivers/block/pktcdvd.c | 102 ++++---------- drivers/block/ps3vram.c | 2 +- drivers/md/dm-crypt.c | 3 +- drivers/md/dm-raid1.c | 2 +- drivers/md/dm-stripe.c | 2 +- drivers/md/dm-verity.c | 4 +- drivers/md/dm.c | 1 - drivers/md/faulty.c | 6 +- drivers/md/linear.c | 3 +- drivers/md/md.c | 19 +-- drivers/md/raid0.c | 9 +- drivers/md/raid1.c | 131 ++++++------------ drivers/md/raid10.c | 78 +++-------- drivers/md/raid5.c | 50 +++---- drivers/message/fusion/mptsas.c | 6 +- drivers/s390/block/dcssblk.c | 3 +- drivers/scsi/libsas/sas_expander.c | 6 +- drivers/scsi/mpt2sas/mpt2sas_transport.c | 10 +- fs/bio-integrity.c | 134 ++++++------------ fs/bio.c | 226 +++++++++++++++++++++++++++---- fs/btrfs/extent_io.c | 3 +- fs/buffer.c | 1 - fs/direct-io.c | 8 +- fs/exofs/ore.c | 2 +- fs/exofs/ore_raid.c | 2 +- fs/gfs2/lops.c | 2 +- fs/jfs/jfs_logmgr.c | 2 - fs/logfs/dev_bdev.c | 5 - include/linux/bio.h | 34 +++-- include/linux/blk_types.h | 3 +- include/trace/events/block.h | 10 +- mm/bounce.c | 75 +++------- mm/page_io.c | 1 - 41 files changed, 471 insertions(+), 587 deletions(-) -- 1.7.12 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
