diff mbox series

[1/3] io_uring/napi: refactor __io_napi_busy_loop()

Message ID b4296a2b49770886cb759d7ae267f0e2f5e2f55c.1722357468.git.asml.silence@gmail.com (mailing list archive)
State New
Headers show
Series Implement absolute value wait timeouts | expand

Commit Message

Pavel Begunkov July 30, 2024, 8:29 p.m. UTC 
we don't need to set ->napi_prefer_busy_poll if we're not going to poll,
do the checks first and all polling preparation after.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 io_uring/napi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/io_uring/napi.c b/io_uring/napi.c
index 4fd6bb331e1e..a670f49e30ef 100644
--- a/io_uring/napi.c
+++ b/io_uring/napi.c
@@ -301,10 +301,11 @@  void __io_napi_adjust_timeout(struct io_ring_ctx *ctx, struct io_wait_queue *iow
  */
 void __io_napi_busy_loop(struct io_ring_ctx *ctx, struct io_wait_queue *iowq)
 {
-	iowq->napi_prefer_busy_poll = READ_ONCE(ctx->napi_prefer_busy_poll);
+	if ((ctx->flags & IORING_SETUP_SQPOLL) || !ctx->napi_enabled)
+		return;
 
-	if (!(ctx->flags & IORING_SETUP_SQPOLL) && ctx->napi_enabled)
-		io_napi_blocking_busy_loop(ctx, iowq);
+	iowq->napi_prefer_busy_poll = READ_ONCE(ctx->napi_prefer_busy_poll);
+	io_napi_blocking_busy_loop(ctx, iowq);
 }
 
 /*