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io_uring: perform IOPOLL reaping if canceler is thread itself 

We bypass IOPOLL completion polling (and reaping) for the SQPOLL thread,
but if it's the thread itself invoking cancelations, then we still need
to perform it or no one will.

Fixes: 9936c7c2bc ("io_uring: deduplicate core cancellations sequence")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2021-03-11 10:49:20 -07:00
parent 5c2469e0a2
commit d052d1d685
1 changed files with 2 additions and 1 deletions
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3
fs/io_uring.c
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@ -8658,7 +8658,8 @@ static void io_uring_try_cancel_requests(struct io_ring_ctx *ctx,
}
/* SQPOLL thread does its own polling */
if (!(ctx->flags & IORING_SETUP_SQPOLL) && !files) {
if ((!(ctx->flags & IORING_SETUP_SQPOLL) && !files) ||
(ctx->sq_data && ctx->sq_data->thread == current)) {
while (!list_empty_careful(&ctx->iopoll_list)) {
io_iopoll_try_reap_events(ctx);
ret = true;