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Date: Thu, 24 Jan 2019 20:16:30 +0800 From: liaoweixiong <liaoweixiong@...winnertech.com> To: Aaro Koskinen <aaro.koskinen@....fi> Cc: Kees Cook <keescook@...omium.org>, Anton Vorontsov <anton@...msg.org>, Colin Cross <ccross@...roid.com>, Tony Luck <tony.luck@...el.com>, Jonathan Corbet <corbet@....net>, Rob Herring <robh+dt@...nel.org>, Mark Rutland <mark.rutland@....com>, Mauro Carvalho Chehab <mchehab+samsung@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "David S. Miller" <davem@...emloft.net>, Andrew Morton <akpm@...ux-foundation.org>, Nicolas Ferre <nicolas.ferre@...rochip.com>, Arnd Bergmann <arnd@...db.de>, linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org Subject: Re: [RFC v7 0/5] pstore/block: new support logger for block devices On 2019-01-24 02:26, Aaro Koskinen wrote: > Hi, > > On Wed, Jan 23, 2019 at 08:05:11PM +0800, liaoweixiong wrote: >> Why should we need pstore_block? >> 1. Most embedded intelligent equipment have no persistent ram, which >> increases costs. We perfer to cheaper solutions, like block devices. >> In fast, there is already a sample for block device logger in driver >> MTD (drivers/mtd/mtdoops.c). > > I think you should add a patch for some actual block device using this > new framework to show that it can work. What HW you think would be > using things? > I will try to add a patch. Actually, I have implemented it on allwinner platform, but unfortunately these codes are unsuitable to submit to upper stream. In addition, there is already a sample for pstore/blk on patch 3 of version 7. It names blkoops. Blkoops is suitable for most block device as what it need is just a path of a partition. We can use it to test most of features but panic. > A. > -- liaoweixiong
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