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(parent: fd63001) | 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)
commitd795ec64ad9b4cbbfc9967077a0a4684bfe26c9a
tree9bdbfa1fa00c665de564148b5457918922c6b664tree | snapshot
parentfd6300177d7b0d5f022c6056864ee5ef88ea24e9commit | 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: 42cf65d9c2bb8 ("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
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