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| author | Jens Axboe <axboe@kernel.dk> | 2023-01-19 09:04:40 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-01-19 10:43:59 -0700 |
| commit | e12d7a46f65ae4b7d58a5e0c1cbfa825cf8d830d (patch) | |
| tree | f00d8e48b6566b62f73360273b69960f6f159705 /Documentation/scheduler | |
| parent | 423d5081d0451faa59a707e57373801da5b40141 (diff) | |
| download | lwn-e12d7a46f65ae4b7d58a5e0c1cbfa825cf8d830d.tar.gz lwn-e12d7a46f65ae4b7d58a5e0c1cbfa825cf8d830d.zip | |
io_uring/msg_ring: fix missing lock on overflow for IOPOLL
If the target ring is configured with IOPOLL, then we always need to hold
the target ring uring_lock before posting CQEs. We could just grab it
unconditionally, but since we don't expect many target rings to be of this
type, make grabbing the uring_lock conditional on the ring type.
Link: https://lore.kernel.org/io-uring/Y8krlYa52%2F0YGqkg@ip-172-31-85-199.ec2.internal/
Reported-by: Xingyuan Mo <hdthky0@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/scheduler')
0 files changed, 0 insertions, 0 deletions