[PATCH barrier cleanup v1 5/7] io_uring: remove unnecessary barrier before reading SQ tail

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Signed-off-by: Stefan Bühler <source@xxxxxxxxxxxx>
---
 fs/io_uring.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 31357cc0e8e6..f93a9fca8311 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1828,8 +1828,6 @@ static bool io_get_sqring(struct io_ring_ctx *ctx, struct sqe_submit *s)
 	 *    though the application is the one updating it.
 	 */
 	head = ctx->cached_sq_head;
-	/* See comment at the top of this file */
-	smp_rmb();
 	/* make sure SQ entry isn't read before tail */
 	if (head == smp_load_acquire(&ring->r.tail))
 		return false;
-- 
2.20.1




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