diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2024-11-04 16:12:04 +0000 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2024-11-11 14:34:21 +0100 |
| commit | df3b8ca604f224eb4cd51669416ad4d607682273 (patch) | |
| tree | 45a904dc05cc644fe83b89d1be23b5ded5534bd2 /include/linux | |
| parent | 1cc86aeadafd667c381c588a84fdef2d5e8093a5 (diff) | |
io_uring/cmd: let cmds to know about dying task
When the taks that submitted a request is dying, a task work for that
request might get run by a kernel thread or even worse by a half
dismantled task. We can't just cancel the task work without running the
callback as the cmd might need to do some clean up, so pass a flag
instead. If set, it's not safe to access any task resources and the
callback is expected to cancel the cmd ASAP.
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/io_uring_types.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index 4b9ba523978d..2ee5dc105b58 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -37,6 +37,7 @@ enum io_uring_cmd_flags { /* set when uring wants to cancel a previously issued command */ IO_URING_F_CANCEL = (1 << 11), IO_URING_F_COMPAT = (1 << 12), + IO_URING_F_TASK_DEAD = (1 << 13), }; struct io_wq_work_node { |