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| author | Pavel Begunkov <asml.silence@gmail.com> | 2022-12-07 06:53:36 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-12-07 18:50:57 +0300 |
| commit | 6d043ee1164ca3305738131f170e560587070fa9 (patch) | |
| tree | 67f4858e877e67894abad983f81c6c7e8a736e79 /include/linux/ftrace_irq.h | |
| parent | 172113101641cf1f9628c528ec790cb809f2b704 (diff) | |
| download | linux-6d043ee1164ca3305738131f170e560587070fa9.tar.xz | |
io_uring: do msg_ring in target task via tw
While executing in a context of one io_uring instance msg_ring
manipulates another ring. We're trying to keep CQEs posting contained in
the context of the ring-owner task, use task_work to send the request to
the target ring's task when we're modifying its CQ or trying to install
a file. Note, we can't safely use io_uring task_work infra and have to
use task_work directly.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4d76c7b28ed5d71b520de4482fbb7f660f21cd80.1670384893.git.asml.silence@gmail.com
[axboe: use TWA_SIGNAL_NO_IPI]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/ftrace_irq.h')
0 files changed, 0 insertions, 0 deletions