io_uring: split off IOPOLL argument verifiction

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IOPOLL doesn't use additional arguments like sigsets, but it still
needs some basic verification, which is currently done by
io_get_ext_arg(). This patch adds a separate function for the IOPOLL
path, which is a bit simpler and doesn't do extra. This prepares us for
further patches, which would have hurt inlining in the hot path otherwise.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/71b23fca412e3374b74be7711cfd42a3d9d5dfe0.1647957378.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2022-03-22 14:07:56 +00:00 • committed by Jens Axboe

parent 57859f4d93

commit f81440d33c

1 changed files with 22 additions and 7 deletions

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fs/io_uring.c

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