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| author | Pavel Begunkov <asml.silence@gmail.com> | 2020-06-28 12:52:37 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-06-28 08:13:03 -0600 |
| commit | 3adfecaa647ff8afa4b6f5907193cf751a0f8351 (patch) | |
| tree | 7cd4a32d63714290fe17cb498f437979006c1121 /fs/io_uring.c | |
| parent | 6795c5aba247653f99d1f336ff496dd74659b322 (diff) | |
| download | lwn-3adfecaa647ff8afa4b6f5907193cf751a0f8351.tar.gz lwn-3adfecaa647ff8afa4b6f5907193cf751a0f8351.zip | |
io_uring: do task_work_run() during iopoll
There are a lot of new users of task_work, and some of task_work_add()
may happen while we do io polling, thus make iopoll from time to time
to do task_work_run(), so it doesn't poll for sitting there reqs.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index f283d111666b..c514a5209703 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -2052,6 +2052,8 @@ static int io_iopoll_check(struct io_ring_ctx *ctx, unsigned *nr_events, */ if (!(++iters & 7)) { mutex_unlock(&ctx->uring_lock); + if (current->task_works) + task_work_run(); mutex_lock(&ctx->uring_lock); } |