io_uring: set -EINTR directly when a signal wakes up in io_cqring_wait

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We didn't use -ERESTARTSYS to tell the application layer to restart the
system call, but instead return -EINTR. we can set -EINTR directly when
wakeup by the signal, which can help us save an assignment operation and
comparison operation.

Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jackie Liu 2019-10-29 11:16:42 +08:00 • committed by Jens Axboe

parent 62755e35df

commit e9ffa5c2b7

1 changed files with 3 additions and 6 deletions

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fs/io_uring.c

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