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| author | Jens Axboe <axboe@kernel.dk> | 2020-04-03 19:26:26 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-04-03 19:35:57 +0200 |
| commit | aa96bf8a9ee33457b7e3ea43e97dfa1e3a15ab20 (patch) | |
| tree | a3ba2c7171210464132794274827829d17dd15b4 /fs/io-wq.h | |
| parent | io_uring: grab task reference for poll requests (diff) | |
| download | linux-aa96bf8a9ee33457b7e3ea43e97dfa1e3a15ab20.tar.xz linux-aa96bf8a9ee33457b7e3ea43e97dfa1e3a15ab20.zip | |
io_uring: use io-wq manager as backup task if task is exiting
If the original task is (or has) exited, then the task work will not get
queued properly. Allow for using the io-wq manager task to queue this
work for execution, and ensure that the io-wq manager notices and runs
this work if woken up (or exiting).
Reported-by: Dan Melnic <dmm@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io-wq.h')
| -rw-r--r-- | fs/io-wq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/io-wq.h b/fs/io-wq.h index 3ee7356d6be5..5ba12de7572f 100644 --- a/fs/io-wq.h +++ b/fs/io-wq.h @@ -136,6 +136,8 @@ typedef bool (work_cancel_fn)(struct io_wq_work *, void *); enum io_wq_cancel io_wq_cancel_cb(struct io_wq *wq, work_cancel_fn *cancel, void *data); +struct task_struct *io_wq_get_task(struct io_wq *wq); + #if defined(CONFIG_IO_WQ) extern void io_wq_worker_sleeping(struct task_struct *); extern void io_wq_worker_running(struct task_struct *); |