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| author | Pavel Begunkov <asml.silence@gmail.com> | 2020-06-15 10:24:04 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-06-15 08:51:34 -0600 |
| commit | 44e728b8aae0bb6d4229129083974f9dea43f50b (patch) | |
| tree | 0b34f50ac8706d4c8d9ee801bf680ea06a27e10c /fs/io_uring.c | |
| parent | 4f26bda1522c35d2701fc219368c7101c17005c1 (diff) | |
| download | lwn-44e728b8aae0bb6d4229129083974f9dea43f50b.tar.gz lwn-44e728b8aae0bb6d4229129083974f9dea43f50b.zip | |
io_uring: cancel all task's requests on exit
If a process is going away, io_uring_flush() will cancel only 1
request with a matching pid. Cancel all of them
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 | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 94bd88556c1e..ad5128a40c14 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -7424,6 +7424,13 @@ static void io_uring_cancel_files(struct io_ring_ctx *ctx, } } +static bool io_cancel_pid_cb(struct io_wq_work *work, void *data) +{ + pid_t pid = (pid_t) (unsigned long) data; + + return work->task_pid == pid; +} + static int io_uring_flush(struct file *file, void *data) { struct io_ring_ctx *ctx = file->private_data; @@ -7433,8 +7440,11 @@ static int io_uring_flush(struct file *file, void *data) /* * If the task is going away, cancel work it may have pending */ - if (fatal_signal_pending(current) || (current->flags & PF_EXITING)) - io_wq_cancel_pid(ctx->io_wq, task_pid_vnr(current)); + if (fatal_signal_pending(current) || (current->flags & PF_EXITING)) { + void *data = (void *) (unsigned long)task_pid_vnr(current); + + io_wq_cancel_cb(ctx->io_wq, io_cancel_pid_cb, data, true); + } return 0; } |