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(parent: e4b0785) | patch
io_uring: batch task work locking
authorPavel Begunkov <asml.silence@gmail.com>
Wed, 18 Aug 2021 11:42:46 +0000 (12:42 +0100)
committerJens Axboe <axboe@kernel.dk>
Mon, 23 Aug 2021 19:13:04 +0000 (13:13 -0600)
commit950395003c1db4f0e8c54c2626460349b14941fc
treef2cbf701db225fbaa3d3402ec02d72002acd81b1tree | snapshot
parente4b0785aaf1125aeb70df49e3ff4ac28881bf1e6commit | diff
io_uring: batch task work locking

Many task_work handlers either grab ->uring_lock, or may benefit from
having it. Move locking logic out of individual handlers to a lazy
approach controlled by tctx_task_work(), so we don't keep doing
tons of mutex lock/unlock.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/d6a34e147f2507a2f3e2fa1e38a9c541dcad3929.1629286357.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | history
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