From: Pavel Begunkov <asml.silence@gmail.com>
Date: Fri, 6 Nov 2020 13:00:21 +0000 (+0000)
Subject: io_uring: simplify io_task_match()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=06de5f5973c641c7ae033f133ecfaaf64fe633a6;p=linux.git

io_uring: simplify io_task_match()

If IORING_SETUP_SQPOLL is set all requests belong to the corresponding
SQPOLL task, so skip task checking in that case and always match.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 12a213b147c0c..baff81313f54f 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1563,11 +1563,7 @@ static bool io_task_match(struct io_kiocb *req, struct task_struct *tsk)
 
 	if (!tsk || req->task == tsk)
 		return true;
-	if (ctx->flags & IORING_SETUP_SQPOLL) {
-		if (ctx->sq_data && req->task == ctx->sq_data->thread)
-			return true;
-	}
-	return false;
+	return (ctx->flags & IORING_SETUP_SQPOLL);
 }
 
 /*