From: hch@infradead.org (Christoph Hellwig)
Subject: [PATCH v4] nvmet: synchronize sqhd update
Date: Thu, 19 Oct 2017 01:56:53 -0700 [thread overview]
Message-ID: <20171019085653.GA2622@infradead.org> (raw)
In-Reply-To: <20171018213359.3587-1-jsmart2021@gmail.com>
On Wed, Oct 18, 2017@02:33:59PM -0700, James Smart wrote:
> In testing target io in read write mix, we did indeed get into cases
> where sqhd didn't update properly and slowly missed enough updates to
> shutdown the queue.
>
> Protect the updating sqhd by using cmpxchg
>
> Signed-off-by: James Smart <james.smart at broadcom.com>
Applied to nvme-4.14 with a small changelog fixup.
prev parent reply other threads:[~2017-10-19 8:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-18 21:33 [PATCH v4] nvmet: synchronize sqhd update James Smart
2017-10-19 8:56 ` Christoph Hellwig [this message]
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