Hi, This patchse cleans up most of direct access to bvec table in tree, and these patches are the follow-up of patch1 ~ 16 in the patchset of 'block: support multipage bvec(V3)'[1]. Changes against [1]: 1) split the cleanup patches from [1] 2) address comments from Christoph: - introduce bio helpers for dealing with the cleanup - move bio_alloc_pages() to bcache [1] https://marc.info/?t=150218197600001&r=1&w=2 Thanks, Ming Ming Lei (10): block: introduce bio helpers for converting to multipage bvec block: conver to bio_first_bvec() & bio_first_page() fs: convert to bio_last_bvec() block: bounce: avoid direct access to bvec table block: bounce: don't access bio->bi_io_vec in copy_to_high_bio_irq dm: limit the max bio size as BIO_MAX_PAGES * PAGE_SIZE bcache: comment on direct access to bvec table block: move bio_alloc_pages() to bcache btrfs: avoid access to .bi_vcnt directly btrfs: avoid to access bvec table directly for a cloned bio block/bio.c | 28 ---------------------------- block/bounce.c | 33 +++++++++++++++++++-------------- drivers/block/drbd/drbd_bitmap.c | 2 +- drivers/block/zram/zram_drv.c | 2 +- drivers/md/bcache/btree.c | 1 + drivers/md/bcache/super.c | 8 ++++---- drivers/md/bcache/util.c | 34 ++++++++++++++++++++++++++++++++++ drivers/md/bcache/util.h | 1 + drivers/md/dm.c | 10 +++++++++- fs/btrfs/compression.c | 4 ++-- fs/btrfs/extent_io.c | 11 ++++++----- fs/btrfs/extent_io.h | 2 +- fs/btrfs/inode.c | 8 +++++--- fs/buffer.c | 2 +- fs/f2fs/data.c | 2 +- include/linux/bio.h | 25 ++++++++++++++++++++++++- include/linux/bvec.h | 9 +++++++++ kernel/power/swap.c | 2 +- mm/page_io.c | 4 ++-- 19 files changed, 122 insertions(+), 66 deletions(-) -- 2.9.5
