md: implement ->set_read_only to hook into BLKROSET processing
[ Upstream commit 118cf084 ] Implement the ->set_read_only method instead of parsing the actual ioctl command. Signed-off-by:Christoph Hellwig <hch@lst.de> Acked-by:
Song Liu <song@kernel.org> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Stable-dep-of: 9674f54e ("md: Don't clear MD_CLOSING when the raid is about to stop") Signed-off-by:
Sasha Levin <sashal@kernel.org>
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