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io_uring: make io_sqpoll_wait_sq return void 

Change the return type to void since it always return 0, and no need
to do the checking in syscall io_uring_enter.

Signed-off-by: Quanfa Fu <quanfafu@gmail.com>
Link: https://lore.kernel.org/r/20230115071519.554282-1-quanfafu@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Quanfa Fu 2023-01-15 15:15:19 +08:00 committed by Jens Axboe
parent c3f4d39ee4
commit 88b80534f6
3 changed files with 5 additions and 8 deletions
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8
io_uring/io_uring.c
View File

@ -3412,11 +3412,9 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit,
}
if (flags & IORING_ENTER_SQ_WAKEUP)
wake_up(&ctx->sq_data->wait);
if (flags & IORING_ENTER_SQ_WAIT) {
ret = io_sqpoll_wait_sq(ctx);
if (ret)
goto out;
}
if (flags & IORING_ENTER_SQ_WAIT)
io_sqpoll_wait_sq(ctx);
ret = to_submit;
} else if (to_submit) {
ret = io_uring_add_tctx_node(ctx);

3
io_uring/sqpoll.c
View File

@ -312,7 +312,7 @@ static int io_sq_thread(void *data)
do_exit(0);
}
int io_sqpoll_wait_sq(struct io_ring_ctx *ctx)
void io_sqpoll_wait_sq(struct io_ring_ctx *ctx)
{
DEFINE_WAIT(wait);
@ -327,7 +327,6 @@ int io_sqpoll_wait_sq(struct io_ring_ctx *ctx)
} while (!signal_pending(current));
finish_wait(&ctx->sqo_sq_wait, &wait);
return 0;
}
__cold int io_sq_offload_create(struct io_ring_ctx *ctx,

2
io_uring/sqpoll.h
View File

@ -26,4 +26,4 @@ void io_sq_thread_stop(struct io_sq_data *sqd);
void io_sq_thread_park(struct io_sq_data *sqd);
void io_sq_thread_unpark(struct io_sq_data *sqd);
void io_put_sq_data(struct io_sq_data *sqd);
int io_sqpoll_wait_sq(struct io_ring_ctx *ctx);
void io_sqpoll_wait_sq(struct io_ring_ctx *ctx);