linux-kernel - Re: Linux 3.19-rc7

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Date:	Mon, 2 Feb 2015 12:34:25 +0100
From:	Jan Kara <jack@...e.cz>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jan Kara <jack@...e.cz>, Christoph Hellwig <hch@....de>,
	Josh Triplett <josh@...htriplett.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 3.19-rc7

On Mon 02-02-15 11:09:53, Geert Uytterhoeven wrote:
> On Mon, Feb 2, 2015 at 6:16 AM, Linus Torvalds
> <torvalds@...ux-foundation.org> wrote:
> > Jan Kara (2):
> >       quota: Switch ->get_dqblk() and ->set_dqblk() to use bytes as space units
> 
> Can't copy_to_xfs_dqblk/copy_from_xfs_dqblk be done in XFS instead?
> 
> function                                     old     new   delta
> sys_quotactl                                2380    4082   +1702
>
  No. This conversion is to / from XFS variant of quotactl interface which
is implemented in fs/quota.c. Anyone can use this interface to query also
other filesystems (e.g. gfs2, ext4, ocfs2) so fs/quota/quota.c is the right
place for this. And if you compile kernel with CONFIG_QUOTA enabled, you
are likely running on large enough machine not to care about 1.7 KB of
code (as much as I agree the growth is unpleasant).

								Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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