linux-ext4 - Re: [RFC] ext3 freeze feature

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Message-ID: <20080126051724.GM155407@sgi.com>
Date:	Sat, 26 Jan 2008 16:17:24 +1100
From:	David Chinner <dgc@....com>
To:	Takashi Sato <t-sato@...jp.nec.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>, linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@....de>
Subject: Re: [RFC] ext3 freeze feature

On Fri, Jan 25, 2008 at 09:42:30PM +0900, Takashi Sato wrote:
> >I am also wondering whether we should have system call(s) for these:
> >
> >On Jan 25, 2008 12:59 PM, Takashi Sato <t-sato@...jp.nec.com> wrote:
> >>+       case EXT3_IOC_FREEZE: {
> >
> >>+       case EXT3_IOC_THAW: {
> >
> >And just convert XFS to use them too?
> 
> I think it is reasonable to implement it as the generic system call, as you
> said.  Does XFS folks think so?

Sure.

Note that we can't immediately remove the XFS ioctls otherwise
we'd break userspace utilities that use them....

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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