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(parent: 21f9652) | patch
io_uring: pin ctx on fallback execution
authorPavel Begunkov <asml.silence@gmail.com>
Tue, 17 Aug 2021 21:36:44 +0000 (22:36 +0100)
committerJens Axboe <axboe@kernel.dk>
Tue, 17 Aug 2021 22:06:14 +0000 (16:06 -0600)
commit9cb0073b302a6b8a8c1015ff31b2b3ab4900f866
tree9bdbfa1fa00c665de564148b5457918922c6b664tree | snapshot
parent21f965221e7c42609521342403e8fb91b8b3e76ecommit | diff
io_uring: pin ctx on fallback execution

Pin ring in io_fallback_req_func() by briefly elevating ctx->refs in
case any task_work handler touches ctx after releasing a request.

Fixes: 9011bf9a13e3b ("io_uring: fix stuck fallback reqs")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/833a494713d235ec144284a9bbfe418df4f6b61c.1629235576.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | history
Domain: System / Kernel;