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| author | Christoph Hellwig <hch@lst.de> | 2018-12-14 17:21:22 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-16 09:01:38 -0700 |
| commit | d04c406f29d9f4dbcb5eb5aa79ce0445c7e9d652 (patch) | |
| tree | 34fac229a9abf2d6b9e9fe98b01118485bfeeced /block | |
| parent | d6a51a97c0b2e21fec224746c2683ff739bcf4ae (diff) | |
| download | linux-stable-d04c406f29d9f4dbcb5eb5aa79ce0445c7e9d652.tar.gz linux-stable-d04c406f29d9f4dbcb5eb5aa79ce0445c7e9d652.tar.bz2 linux-stable-d04c406f29d9f4dbcb5eb5aa79ce0445c7e9d652.zip | |
block: clear REQ_HIPRI if polling is not supported
This prevents a HIPRI bio from being submitted through a stacking
driver that does not support polling and thus won't poll for I/O
completion.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index fa661bac40af..c78042975737 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -921,6 +921,9 @@ generic_make_request_checks(struct bio *bio) } } + if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags)) + bio->bi_opf &= ~REQ_HIPRI; + switch (bio_op(bio)) { case REQ_OP_DISCARD: if (!blk_queue_discard(q)) |