From: patchwork-bot+netdevbpf@kernel.org
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: santosh.shilimkar@oracle.com, netdev@vger.kernel.org,
linux-rdma@vger.kernel.org, rds-devel@oss.oracle.com
Subject: Re: [PATCH] rds: add missing barrier to release_refill
Date: Fri, 12 Aug 2022 09:50:14 +0000 [thread overview]
Message-ID: <166029781440.21057.2862076834998387336.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <alpine.LRH.2.02.2208100858130.19047@file01.intranet.prod.int.rdu2.redhat.com>
Hello:
This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:
On Wed, 10 Aug 2022 09:00:42 -0400 (EDT) you wrote:
> The functions clear_bit and set_bit do not imply a memory barrier, thus it
> may be possible that the waitqueue_active function (which does not take
> any locks) is moved before clear_bit and it could miss a wakeup event.
>
> Fix this bug by adding a memory barrier after clear_bit.
>
> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
> Cc: stable@vger.kernel.org
Here is the summary with links:
- rds: add missing barrier to release_refill
https://git.kernel.org/netdev/net/c/9f414eb409da
You are awesome, thank you!
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prev parent reply other threads:[~2022-08-12 9:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 13:00 [PATCH] rds: add missing barrier to release_refill Mikulas Patocka
2022-08-12 9:50 ` patchwork-bot+netdevbpf [this message]
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