lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

block: clear REQ_HIPRI if polling is not supported

Browse Source 
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>
This commit is contained in:
Christoph Hellwig 2018-12-14 17:21:22 +01:00 committed by Jens Axboe
parent d6a51a97c0
commit d04c406f29
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
block/blk-core.c
View File

@ -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))