linux-kernel - Re: revert "config FS_JOURNAL

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Message-ID: <877hsjw59m.fsf@devron.myhome.or.jp>
Date:	Sat, 19 Dec 2009 20:51:49 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: revert "config FS_JOURNAL_INFO"

Alexey Dobriyan <adobriyan@...il.com> writes:

> On 12/18/09, Hiroshi Shimamoto <h-shimamoto@...jp.nec.com> wrote:
>> So we never allow to make memory usage small with providing an option
>> to remove unused area, right?
>
> We certainly allow this if it results in zero loss in functionality.
>
>> If I want to reduce memory usage by this way, should I keep
>> this kind of patches out of tree?
>
> Certainly nobody can prohibit you from keeping patch out of tree.
> But if you want something mainlinable, moving ->journal_info
> to fs-specific data structures should do the trick. Or something.

Why doesn't this use EMBEDDED?

I.e.

	boot "xxx" if EMBEDDED
	default y

style Kconfig.

Only reason which seems reasonable is "this is done only for one pointer
on task_struct". This reason seems something like "You care, but I don't
care it". And, other reasons is *normal* situation on EMBEDDED, right?

Thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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