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27 Jan 2021 23:11:38 -0800 From: Chaitanya Kulkarni To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, xen-devel@lists.xenproject.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-pm@vger.kernel.org, linux-mm@kvack.org Cc: axboe@kernel.dk, philipp.reisner@linbit.com, lars.ellenberg@linbit.com, konrad.wilk@oracle.com, roger.pau@citrix.com, minchan@kernel.org, ngupta@vflare.org, sergey.senozhatsky.work@gmail.com, agk@redhat.com, snitzer@redhat.com, hch@lst.de, sagi@grimberg.me, chaitanya.kulkarni@wdc.com, martin.petersen@oracle.com, viro@zeniv.linux.org.uk, tytso@mit.edu, jaegeuk@kernel.org, ebiggers@kernel.org, djwong@kernel.org, shaggy@kernel.org, konishi.ryusuke@gmail.com, mark@fasheh.com, jlbec@evilplan.org, joseph.qi@linux.alibaba.com, damien.lemoal@wdc.com, naohiro.aota@wdc.com, jth@kernel.org, rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz, akpm@linux-foundation.org, hare@suse.de, gustavoars@kernel.org, tiwai@suse.de, alex.shi@linux.alibaba.com, asml.silence@gmail.com, ming.lei@redhat.com, tj@kernel.org, osandov@fb.com, bvanassche@acm.org, jefflexu@linux.alibaba.com Subject: [RFC PATCH 00/34] block: introduce bio_new() Date: Wed, 27 Jan 2021 23:10:59 -0800 Message-Id: <20210128071133.60335-1-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org 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(-)