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-rw-r--r--kernel/drivers/block/brd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/drivers/block/brd.c b/kernel/drivers/block/brd.c
index a5880f4ab..1914c63ca 100644
--- a/kernel/drivers/block/brd.c
+++ b/kernel/drivers/block/brd.c
@@ -338,7 +338,7 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
if (unlikely(bio->bi_rw & REQ_DISCARD)) {
if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) ||
- bio->bi_iter.bi_size & PAGE_MASK)
+ bio->bi_iter.bi_size & ~PAGE_MASK)
goto io_error;
discard_from_brd(brd, sector, bio->bi_iter.bi_size);
goto out;