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From: John Garry <john.g.garry@oracle.com>
To: axboe@kernel.dk, agk@redhat.com, mpatocka@redhat.com, hch@lst.de
Cc: song@kernel.org, yukuai3@huawei.com, kbusch@kernel.org, sagi@grimberg.me,
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John Garry <john.g.garry@oracle.com>
Subject: [PATCH RFC v2 6/8] dm-stripe: Enable atomic writes
Date: Thu, 16 Jan 2025 17:02:59 +0000
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device mapper atomic write support
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expand
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diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index 4112071de0be..9add79c234ae 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -466,7 +466,8 @@ static void stripe_io_hints(struct dm_target *ti, static struct target_type stripe_target = { .name = "striped", .version = {1, 6, 0}, - .features = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_NOWAIT, + .features = DM_TARGET_PASSES_INTEGRITY | DM_TARGET_NOWAIT | + DM_TARGET_ATOMIC_WRITES, .module = THIS_MODULE, .ctr = stripe_ctr, .dtr = stripe_dtr,
Set feature flag DM_TARGET_ATOMIC_WRITES. Similar to md raid0, the chunk size set in stripe_io_hints() limits the atomic write unit max. Signed-off-by: John Garry <john.g.garry@oracle.com> --- drivers/md/dm-stripe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)