linux-kernel - Re: [git pull] vfs part 3 (write

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Message-ID: <20100309085209.GK28189@discord.disaster>
Date:	Tue, 9 Mar 2010 19:52:09 +1100
From:	Dave Chinner <david@...morbit.com>
To:	Steve Dickson <SteveD@...hat.com>
Cc:	Al Viro <viro@...IV.linux.org.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	Trond Myklebust <Trond.Myklebust@...app.com>
Subject: Re: [git pull] vfs part 3 (write_inode mess)

On Mon, Mar 08, 2010 at 03:22:37PM -0500, Steve Dickson wrote:
> On 03/05/2010 12:40 PM, Al Viro wrote:
> > On Fri, Mar 05, 2010 at 03:48:23PM +0000, Al Viro wrote:
> >> I'm going to push the next VFS pile in about half an hour and get to the
> >> write_inode situation.  I'm not sure what's the best course here.  Note
> >> that since you've pulled it, you also have conflicts with what's in the
> >> mainline.  I can do *another* backmerge (already had one due to gfs2 trivial
> >> conflicts) and push the result.  Which will suck, since XFS conflicts
> >> are not entirely trivial and we'll get a really ugly merge node, with
> >> conflict resolution both hidden and not quite obvious.
> > 
> > OK, a backmerge it is.  Linus, could you please pull
> > git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6.git/ write_inode
> > or suggest a saner way to do that?
> > 
> > I've done backmerges of two points in mainline (trees that got merged
> > into mainline, actually) that created conflicts.  So at that point it's
> > (a) descendent of what's been pulled into NFS tree and (b) merges clean
> > with mainline.  All for two patches (at commit 716c28c..) ;-/
> > 
> > It's independent from the previous VFS pull; there's more stuff, hopefully
> > for later today, but the worst of the mess should be gone with that one.
> Has there been any kind of testing that show this approach does indeed
> improve performance? Any hardcore number? 

http://oss.sgi.com/archives/xfs/2010-01/msg00556.html

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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