This series introduces initial device mapper atomic write support. Since we already support stacking atomic writes limits, it's quite straightforward to support. Personalities dm-linear, dm-stripe, and dm-raid1 are supported here, and more personalities could be supported in future. This is still an RFC as I would like to test further. Based on 3d9a9e9a77c5 (block/for-6.14/block) block: limit disk max sectors to (LLONG_MAX >> 9) Changes to v1: - Generic block layer atomic writes enable flag and dm-table rework - Add dm-stripe and dm-raid1 support - Add bio_trim() patch John Garry (8): block: Add common atomic writes enable flag block: Don't trim an atomic write dm-table: atomic writes support dm: Ensure cloned bio is same length for atomic write dm-linear: Enable atomic writes dm-stripe: Enable atomic writes dm-io: Warn on creating multiple atomic write bios for a region dm-mirror: Support atomic writes block/bio.c | 4 ++++ block/blk-settings.c | 6 ++++-- drivers/md/dm-io.c | 1 + drivers/md/dm-linear.c | 3 ++- drivers/md/dm-raid1.c | 3 ++- drivers/md/dm-stripe.c | 3 ++- drivers/md/dm-table.c | 29 +++++++++++++++++++++++++++++ drivers/md/dm.c | 3 +++ drivers/md/raid0.c | 2 +- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 2 +- drivers/nvme/host/core.c | 1 + drivers/scsi/sd.c | 1 + include/linux/blkdev.h | 4 ++-- include/linux/device-mapper.h | 3 +++ 15 files changed, 57 insertions(+), 10 deletions(-) -- 2.31.1
