6.11-stable review patch. If anyone has any objections, please let me know.
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From: John Garry john.g.garry@oracle.com
[ Upstream commit ea6787c695ab7595d851c3506f67c157f3b593c0 ]
We check in submit_bio_noacct() if flag REQ_ATOMIC is set for both read and write operations, and then validate the atomic operation if set. Flag REQ_ATOMIC can only be set for writes, so don't bother checking for reads.
Fixes: 9da3d1e912f3 ("block: Add core atomic write support") Signed-off-by: John Garry john.g.garry@oracle.com Link: https://lore.kernel.org/r/20240805113315.1048591-3-john.g.garry@oracle.com Reviewed-by: Kanchan Joshi joshi.k@samsung.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- block/blk-core.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/block/blk-core.c b/block/blk-core.c index 1217c2cd66dd8..bc5e8c5eaac9f 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -799,6 +799,7 @@ void submit_bio_noacct(struct bio *bio)
switch (bio_op(bio)) { case REQ_OP_READ: + break; case REQ_OP_WRITE: if (bio->bi_opf & REQ_ATOMIC) { status = blk_validate_atomic_write_op_size(q, bio);