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From: Christoph Hellwig <hch@lst.de>
To: Max Gurtovoy <maxg@mellanox.com>
Cc: sagi@grimberg.me, israelr@mellanox.com, james.smart@broadcom.com,
	linux-nvme@lists.infradead.org, shlomin@mellanox.com,
	kbusch@kernel.org, hch@lst.de
Subject: Re: [PATCH 3/8] nvmet: add unlikely check at nvmet_req_alloc_sgl
Date: Thu, 10 Oct 2019 15:51:42 +0200	[thread overview]
Message-ID: <20191010135142.GC31487@lst.de> (raw)
In-Reply-To: <1570714100-15520-4-git-send-email-maxg@mellanox.com>

On Thu, Oct 10, 2019 at 04:28:15PM +0300, Max Gurtovoy wrote:
> From: Israel Rukshin <israelr@mellanox.com>
> 
> The call to sgl_alloc shouldn't fail so add this simple optimization to
> the fast path.

Does it really make a difference in practice?

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  reply	other threads:[~2019-10-10 13:51 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-10 13:28 [PATCH 0/8] small NVMe cleanups/fixes Max Gurtovoy
2019-10-10 13:28 ` [PATCH 1/8] nvme: Introduce nvme_is_aen_req function Max Gurtovoy
2019-10-10 13:51   ` Christoph Hellwig
2019-10-10 13:28 ` [PATCH 2/8] nvmet: use bio_io_error instead of duplicating it Max Gurtovoy
2019-10-10 13:51   ` Christoph Hellwig
2019-10-10 13:28 ` [PATCH 3/8] nvmet: add unlikely check at nvmet_req_alloc_sgl Max Gurtovoy
2019-10-10 13:51   ` Christoph Hellwig [this message]
2019-10-10 15:27     ` Max Gurtovoy
2019-10-10 13:28 ` [PATCH 4/8] nvmet-rdma: add unlikely check at nvmet_rdma_map_sgl_keyed Max Gurtovoy
2019-10-10 13:28 ` [PATCH 5/8] nvme: introduce "Command Aborted By host" status code Max Gurtovoy
2019-10-10 13:53   ` Christoph Hellwig
2019-10-10 13:28 ` [PATCH 6/8] nvme: move common call to nvme_cleanup_cmd to core layer Max Gurtovoy
2019-10-10 13:56   ` Christoph Hellwig
2019-10-10 13:28 ` [PATCH 7/8] nvmet-loop: fix possible leakage during error flow Max Gurtovoy
2019-10-10 13:28 ` [PATCH 8/8] nvme-tcp: " Max Gurtovoy
2019-10-10 13:56   ` Christoph Hellwig
2019-10-13 16:57 [PATCH v2 0/8] small NVMe cleanups/fixes Max Gurtovoy
2019-10-13 16:57 ` [PATCH 3/8] nvmet: add unlikely check at nvmet_req_alloc_sgl Max Gurtovoy

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