From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
Cc: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
linux-nvme-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>,
Steve Wise
<swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>,
Jay Freyensee
<james_p_freyensee-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Ming Lin <mlin-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH] nvmet-rdma: Don't use the inline buffer in order to avoid allocation for small reads
Date: Tue, 2 Aug 2016 10:15:26 -0600 [thread overview]
Message-ID: <20160802161526.GA14964@obsidianresearch.com> (raw)
In-Reply-To: <157675f0-0576-1cc9-1f99-c0944185e3c5-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
On Tue, Aug 02, 2016 at 04:38:58PM +0300, Sagi Grimberg wrote:
> that is currently being sent (its a rare race condition, but
> theoretically possible). The reason is that we repost the inline data
> buffer for receive before we post the send request. We used to have
?? The same buffer is posted at the same time for send and recv? That
is never OK, SRQ or not.
Jason
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next prev parent reply other threads:[~2016-08-02 16:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-01 8:36 [PATCH] nvmet-rdma: Don't use the inline buffer in order to avoid allocation for small reads Sagi Grimberg
[not found] ` <1470040599-7294-1-git-send-email-sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-08-02 12:50 ` Christoph Hellwig
[not found] ` <20160802125042.GB13235-jcswGhMUV9g@public.gmane.org>
2016-08-02 13:38 ` Sagi Grimberg
[not found] ` <157675f0-0576-1cc9-1f99-c0944185e3c5-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
2016-08-02 16:15 ` Jason Gunthorpe [this message]
[not found] ` <20160802161526.GA14964-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-08-03 9:48 ` Sagi Grimberg
2016-08-03 9:49 ` Christoph Hellwig
[not found] ` <20160803094941.GA11821-jcswGhMUV9g@public.gmane.org>
2016-08-03 10:37 ` Sagi Grimberg
2016-08-04 11:49 ` Christoph Hellwig
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