Support atomic writes by setting DM_TARGET_ATOMIC_WRITES for the target type, and also unmasking REQ_ATOMIC from the submitted bio op flags.
Signed-off-by: John Garry <[email protected]> --- drivers/md/dm-raid1.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 9511dae5b556..7a42bf648c52 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -656,7 +656,7 @@ static void do_write(struct mirror_set *ms, struct bio *bio) unsigned int i; struct dm_io_region io[MAX_NR_MIRRORS], *dest = io; struct mirror *m; - blk_opf_t op_flags = bio->bi_opf & (REQ_FUA | REQ_PREFLUSH); + blk_opf_t op_flags = bio->bi_opf & (REQ_FUA | REQ_PREFLUSH | REQ_ATOMIC); struct dm_io_request io_req = { .bi_opf = REQ_OP_WRITE | op_flags, .mem.type = DM_IO_BIO, @@ -1485,6 +1485,7 @@ static struct target_type mirror_target = { .name = "mirror", .version = {1, 14, 0}, .module = THIS_MODULE, + .features = DM_TARGET_ATOMIC_WRITES, .ctr = mirror_ctr, .dtr = mirror_dtr, .map = mirror_map, -- 2.31.1
