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-rw-r--r--block/blk-core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 04477697ee4b..c130206e9961 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -833,8 +833,11 @@ static noinline_for_stack bool submit_bio_checks(struct bio *bio)
}
}
- if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
+ if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) {
+ /* can't support alloc cache if we turn off polling */
+ bio_clear_flag(bio, BIO_PERCPU_CACHE);
bio->bi_opf &= ~REQ_HIPRI;
+ }
switch (bio_op(bio)) {
case REQ_OP_DISCARD: