Commit 9e4c15a3 authored by Stefan Bühler's avatar Stefan Bühler Committed by Jens Axboe

io_uring: remove unnecessary barrier after updating SQ head

There is no operation afterwards to order with.
Signed-off-by: default avatarStefan Bühler <source@stbuehler.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 115e12e5
...@@ -1798,12 +1798,6 @@ static void io_commit_sqring(struct io_ring_ctx *ctx) ...@@ -1798,12 +1798,6 @@ static void io_commit_sqring(struct io_ring_ctx *ctx)
* write new data to them. * write new data to them.
*/ */
smp_store_release(&ring->r.head, ctx->cached_sq_head); smp_store_release(&ring->r.head, ctx->cached_sq_head);
/*
* write side barrier of head update, app has read side. See
* comment at the top of this file
*/
smp_wmb();
} }
} }
......
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