linux-kernel - Re: cramfs and named-pipe

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Message-Id: <20080815155220.91ec8201.akpm@linux-foundation.org>
Date:	Fri, 15 Aug 2008 15:52:20 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Atsushi Nemoto <anemo@....ocn.ne.jp>
Cc:	viro@...IV.linux.org.uk, djohnson@...starentnetworks.com,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	stable@...nel.org
Subject: Re: cramfs and named-pipe

On Tue, 05 Aug 2008 12:09:09 +0900 (JST)
Atsushi Nemoto <anemo@....ocn.ne.jp> wrote:

> On Mon, 4 Aug 2008 11:03:47 +0100, Al Viro <viro@...IV.linux.org.uk> wrote:
> > Eeek...  I'd rather not play these games with directories and devices nodes
> > as well.  Rationale for the original patch simply doesn't apply for those.
> > 
> > IOW, I think it would be much saner if we did the following: make ..._test()
> > refuse to merge inodes with ->i_ino == 1, take inode setup back to
> > get_cramfs_inode() and make ->drop_inode() evict ones with ->i_ino == 1
> > immediately.  Comments?
> > 
> > Patch below is completely untested; it builds, but that's it.
> 
> Thanks, your patch works well for me.  But it looks a bit large for
> stable tree (100 line rule).
> 
> With current code, I think no problem on empty directories and device
> nodes.  So how about fixing only FIFO case first (and send it to
> stable tree) and then go to your patch?
> 

Nothing seems to have happened.  Al, do you think your (now tested) patch
is good for 2.6.27 and 2.6.26.x?  And, it seems, 2.6.25.x.  (All the way
down to 2.6.14.x!)
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