GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-22 14:52:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

blk-mq: when polling for IO, look for any completion

Browse source 
If we want to support async IO polling, then we have to allow finding
completions that aren't just for the one we are looking for. Always pass
in -1 to the mq_ops->poll() helper, and have that return how many events
were found in this poll loop.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2018-11-26 08:21:49 -07:00
parent 1db4909e76
commit 1052b8ac52
5 changed files with 70 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/linux/blkdev.h
View file

@ -867,7 +867,7 @@ extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
int blk_status_to_errno(blk_status_t status);
blk_status_t errno_to_blk_status(int errno);
bool blk_poll(struct request_queue *q, blk_qc_t cookie);
int blk_poll(struct request_queue *q, blk_qc_t cookie);
static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
{