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Subject[PATCH] io_uring: make io_sqpoll_wait_sq return void
Date
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>
---
io_uring/io_uring.c | 8 +++-----
io_uring/sqpoll.c | 3 +--
io_uring/sqpoll.h | 2 +-
3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 2ac1cd8d23ea..7305c9e34566 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3330,11 +3330,9 @@ 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);
diff --git a/io_uring/sqpoll.c b/io_uring/sqpoll.c
index 559652380672..0119d3f1a556 100644
--- a/io_uring/sqpoll.c
+++ b/io_uring/sqpoll.c
@@ -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,
diff --git a/io_uring/sqpoll.h b/io_uring/sqpoll.h
index 0c3fbcd1f583..e1b8d508d22d 100644
--- a/io_uring/sqpoll.h
+++ b/io_uring/sqpoll.h
@@ -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);
--
2.31.1
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