Hi, This is a *compile only RFC* which adds a generic helper to initialize the various fields of the bio that is repeated all the places in file-systems, block layer, and drivers. The new helper allows callers to initialize non-optional members of bio such as bdev, sector, op, opflags, max_bvecs and gfp_mask by encapsulating new bio allocation with bio alloc with initialization at one place. The objective of this RFC is to only start a discussion, this it not completely tested at all. -ck Chaitanya Kulkarni (34): block: move common code into blk_next_bio() block: introduce and use bio_new drdb: use bio_new in drdb drdb: use bio_new() in submit_one_flush xen-blkback: use bio_new zram: use bio_new dm: use bio_new in dm-log-writes dm-zoned: use bio_new in get_mblock_slow dm-zoned: use bio_new in dmz_write_mblock dm-zoned: use bio_new in dmz_rdwr_block nvmet: use bio_new in nvmet_bdev_execute_rw scsi: target/iblock: use bio_new block: use bio_new in __blkdev_direct_IO fs/buffer: use bio_new in submit_bh_wbc fscrypt: use bio_new in fscrypt_zeroout_range fs/direct-io: use bio_new in dio_bio_alloc iomap: use bio_new in iomap_dio_zero iomap: use bio_new in iomap_dio_bio_actor fs/jfs/jfs_logmgr.c: use bio_new in lbmRead fs/jfs/jfs_logmgr.c: use bio_new in lbmStartIO fs/jfs/jfs_metapage.c: use bio_new in metapage_writepage fs/jfs/jfs_metapage.c: use bio_new in metapage_readpage fs/mpage.c: use bio_new mpage_alloc fs/nilfs: use bio_new nilfs_alloc_seg_bio ocfs/cluster: use bio_new in dm-log-writes xfs: use bio_new in xfs_rw_bdev xfs: use bio_new in xfs_buf_ioapply_map zonefs: use bio_new power/swap: use bio_new in hib_submit_io hfsplus: use bio_new in hfsplus_submit_bio() iomap: use bio_new in iomap_readpage_actor mm: use bio_new in __swap_writepage mm: use bio_new in swap_readpage mm: add swap_bio_new common bio helper block/blk-lib.c | 34 ++++++++++------------------- block/blk-zoned.c | 4 +--- block/blk.h | 5 +++-- drivers/block/drbd/drbd_receiver.c | 12 +++++----- drivers/block/xen-blkback/blkback.c | 20 +++++++++++------ drivers/block/zram/zram_drv.c | 5 ++--- drivers/md/dm-log-writes.c | 30 +++++++++---------------- drivers/md/dm-zoned-metadata.c | 18 +++++---------- drivers/nvme/target/io-cmd-bdev.c | 9 +++----- drivers/target/target_core_iblock.c | 5 ++--- fs/block_dev.c | 6 ++--- fs/buffer.c | 16 ++++++-------- fs/crypto/bio.c | 5 ++--- fs/direct-io.c | 6 ++--- fs/hfsplus/wrapper.c | 5 +---- fs/iomap/buffered-io.c | 12 +++++----- fs/iomap/direct-io.c | 11 ++++------ fs/jfs/jfs_logmgr.c | 13 ++++------- fs/jfs/jfs_metapage.c | 15 +++++-------- fs/mpage.c | 18 +++++---------- fs/nilfs2/segbuf.c | 10 ++------- fs/ocfs2/cluster/heartbeat.c | 6 ++--- fs/xfs/xfs_bio_io.c | 7 ++---- fs/xfs/xfs_buf.c | 6 ++--- fs/zonefs/super.c | 6 ++--- include/linux/bio.h | 25 +++++++++++++++++++++ kernel/power/swap.c | 7 +++--- mm/page_io.c | 30 +++++++++++++------------ 28 files changed, 151 insertions(+), 195 deletions(-) -- 2.22.1
