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| author |   John Garry <john.g.garry@oracle.com> | 2025-01-16 17:03:01 +0000 |
|---|---|---|
| committer |   Mikulas Patocka <mpatocka@redhat.com> | 2025-01-17 22:24:11 +0100 |
| commit | 6845de78ae3701ed19619cf786695072c73b8e92 (patch) | |
| tree | f9a3d23a6638c6c49607d60f959228359263f9d5 | |
| parent | dm-io: Warn on creating multiple atomic write bios for a region (diff) | |
| download | wireguard-linux-6845de78ae3701ed19619cf786695072c73b8e92.tar.xz wireguard-linux-6845de78ae3701ed19619cf786695072c73b8e92.zip | |
dm-mirror: Support atomic writes
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 <john.g.garry@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
| -rw-r--r-- | drivers/md/dm-raid1.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 9511dae5b556..8c6f1f7e6456 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, @@ -1483,8 +1483,9 @@ static int mirror_iterate_devices(struct dm_target *ti, static struct target_type mirror_target = { .name = "mirror", - .version = {1, 14, 0}, + .version = {1, 15, 0}, .module = THIS_MODULE, + .features = DM_TARGET_ATOMIC_WRITES, .ctr = mirror_ctr, .dtr = mirror_dtr, .map = mirror_map, |