linux-kernel - Re: [PATCH 1/2] nvme-hwmon: Cache-line-align the NVME SMART log-buffer

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Message-ID: <7ff5df5b-8816-4454-70d2-656f87d6b970@roeck-us.net>
Date:   Sat, 10 Sep 2022 07:33:30 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Christoph Hellwig <hch@....de>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Jonathan Derrick <jonathan.derrick@...el.com>,
        Revanth Rajashekar <revanth.rajashekar@...el.com>,
        Jens Axboe <axboe@...nel.dk>, Keith Busch <kbusch@...nel.org>,
        Jens Axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-nvme@...ts.infradead.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] nvme-hwmon: Cache-line-align the NVME SMART
 log-buffer

On 9/9/22 22:30, Christoph Hellwig wrote:
> I think this will work, but unless we have to I'd generally prefer
> to just split dta that is DMAed into into a separate allocation.
> That is, do a separate kmalloc for the nvme_smart_log structure.
> 
> Guenter, is this ok with you?

Seems to be a bit overkill, but sure.

Guenter