linux-kernel - Re: [PATCH] nvme-pci: calculate iod and avg_seg

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Date:   Sun, 14 Jan 2018 11:28:23 +0200
From:   Sagi Grimberg <sagi@...mberg.me>
To:     Keith Busch <keith.busch@...el.com>,
        Jianchao Wang <jianchao.w.wang@...cle.com>
Cc:     axboe@...com, hch@....de, linux-nvme@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nvme-pci: calculate iod and avg_seg_size just before use
 them


>> The calculation of iod and avg_seg_size maybe meaningless if
>> nvme_pci_use_sgls returns before uses them. So calculate
>> just before use them.
> 
> The compiler will do the right thing here, but I see what you mean. I
> think Christoph has some SGL improvements coming, though, that will
> obviate this.

I think that if its not coming for 4.16, it should be easy enough to
take it in.

FWIW,

Reviewed-by: Sagi Grimberg <sagi@...mberg.me>