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| author | Jens Axboe <axboe@kernel.dk> | 2024-06-24 19:07:18 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-06-24 19:46:15 -0600 |
| commit | dbcabac138fdfc730ba458ed2199ff1f29a271fc (patch) | |
| tree | 96f2bf8ba6c6048489440d529fee6f6aa2d370bb /io_uring/io_uring.c | |
| parent | 26b97668e5339434e5df8ddc7b1898a37a350112 (diff) | |
| download | linux-stable-dbcabac138fdfc730ba458ed2199ff1f29a271fc.tar.gz linux-stable-dbcabac138fdfc730ba458ed2199ff1f29a271fc.tar.bz2 linux-stable-dbcabac138fdfc730ba458ed2199ff1f29a271fc.zip | |
io_uring: signal SQPOLL task_work with TWA_SIGNAL_NO_IPI
Before SQPOLL was transitioned to managing its own task_work, the core
used TWA_SIGNAL_NO_IPI to ensure that task_work was processed. If not,
we can't be sure that all task_work is processed at SQPOLL thread exit
time.
Fixes: af5d68f8892f ("io_uring/sqpoll: manage task_work privately")
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/io_uring.c')
| -rw-r--r-- | io_uring/io_uring.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 154b25b8a613..c326e2127dd4 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1259,8 +1259,8 @@ static void io_req_normal_work_add(struct io_kiocb *req) if (ctx->flags & IORING_SETUP_SQPOLL) { struct io_sq_data *sqd = ctx->sq_data; - if (wq_has_sleeper(&sqd->wait)) - wake_up(&sqd->wait); + if (sqd->thread) + __set_notify_signal(sqd->thread); return; } |