From: Artem Bityutskiy <dedekind1@gmail.com>
To: "Patrick O'Grady" <patrick@baymotion.com>
Cc: Joern Engel <joern@lazybastard.org>,
David Woodhouse <dwmw2@infradead.org>,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] phram: Allow the user to set the erase page size.
Date: Sat, 02 Mar 2013 17:16:24 +0200 [thread overview]
Message-ID: <1362237384.2745.20.camel@sauron> (raw)
In-Reply-To: <CAJ7m5OqYv_=JB9NhHsqBsa8YU0DFRoP7C+W10PY22wonAGJK=A@mail.gmail.com>
On Fri, 2013-02-15 at 12:35 -0800, Patrick O'Grady wrote:
> From: Patrick O'Grady <patrick@baymotion.com>
>
> Permit the user to specify the erase page size as a parameter.
> This solves two problems:
>
> - phram can access images made by mkfs.jffs2. mkfs.jffs2 won't
> create images with erase sizes less than 8KiB; many architectures
> define PAGE_SIZE as 4KiB.
>
> - Allows more effective use of small capacity devices. JFFS2
> needs somewhere between 2 and 5 empty pages for garbage collection;
> and for an NVRAM part with only 32KiB of space, a smaller erase page
> allows much better utilization in applications where garbage collection
> is important.
Unfortunately, the patch is line-wrapped and not applicable to the
latest kernel tree. Would you please refresh and re-send properly?
--
Best Regards,
Artem Bityutskiy
WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Patrick O'Grady <patrick@baymotion.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Joern Engel <joern@lazybastard.org>,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: Re: [PATCH] phram: Allow the user to set the erase page size.
Date: Sat, 02 Mar 2013 17:16:24 +0200 [thread overview]
Message-ID: <1362237384.2745.20.camel@sauron> (raw)
In-Reply-To: <CAJ7m5OqYv_=JB9NhHsqBsa8YU0DFRoP7C+W10PY22wonAGJK=A@mail.gmail.com>
On Fri, 2013-02-15 at 12:35 -0800, Patrick O'Grady wrote:
> From: Patrick O'Grady <patrick@baymotion.com>
>
> Permit the user to specify the erase page size as a parameter.
> This solves two problems:
>
> - phram can access images made by mkfs.jffs2. mkfs.jffs2 won't
> create images with erase sizes less than 8KiB; many architectures
> define PAGE_SIZE as 4KiB.
>
> - Allows more effective use of small capacity devices. JFFS2
> needs somewhere between 2 and 5 empty pages for garbage collection;
> and for an NVRAM part with only 32KiB of space, a smaller erase page
> allows much better utilization in applications where garbage collection
> is important.
Unfortunately, the patch is line-wrapped and not applicable to the
latest kernel tree. Would you please refresh and re-send properly?
--
Best Regards,
Artem Bityutskiy
next prev parent reply other threads:[~2013-03-02 15:15 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-15 20:35 [PATCH] phram: Allow the user to set the erase page size Patrick O'Grady
2013-02-15 19:42 ` Jörn Engel
2013-02-15 19:42 ` Jörn Engel
2013-03-02 15:16 ` Artem Bityutskiy [this message]
2013-03-02 15:16 ` Artem Bityutskiy
2020-11-24 6:10 Guohua Zhong
2020-11-24 6:10 ` Guohua Zhong
2020-11-24 8:51 ` kernel test robot
2020-11-24 8:51 ` kernel test robot
2020-11-24 8:51 ` kernel test robot
2020-11-24 14:27 ` Guohua Zhong
2020-11-24 14:27 ` Guohua Zhong
2020-11-24 14:27 ` Guohua Zhong
2020-11-24 9:12 ` kernel test robot
2020-11-24 9:12 ` kernel test robot
2020-11-24 9:12 ` kernel test robot
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