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Re: [Qemu-devel] [PATCH] tests-aio-multithread: use atomic_read properly
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] tests-aio-multithread: use atomic_read properly |
Date: |
Mon, 27 Feb 2017 14:01:01 +0000 |
User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Mon, Feb 27, 2017 at 12:17:26PM +0100, Paolo Bonzini wrote:
> nodes[id].next is written by other threads. If atomic_read is not used
> (matching atomic_set in mcs_mutex_lock!) the compiler can optimize the
> whole "if" away!
>
> Reported-by: Alex Bennée <address@hidden>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> tests/test-aio-multithread.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block
Stefan
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