linux-kernel - Re: [PATCH] nfs: fix congestion control

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Message-Id: <1169070886.6523.8.camel@lade.trondhjem.org>
Date:	Wed, 17 Jan 2007 16:54:46 -0500
From:	Trond Myklebust <trond.myklebust@....uio.no>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	Christoph Lameter <clameter@....com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH] nfs: fix congestion control

On Wed, 2007-01-17 at 22:52 +0100, Peter Zijlstra wrote:

> > 
> > > Index: linux-2.6-git/fs/inode.c
> > > ===================================================================
> > > --- linux-2.6-git.orig/fs/inode.c	2007-01-12 08:03:47.000000000 +0100
> > > +++ linux-2.6-git/fs/inode.c	2007-01-12 08:53:26.000000000 +0100
> > > @@ -81,6 +81,7 @@ static struct hlist_head *inode_hashtabl
> > >   * the i_state of an inode while it is in use..
> > >   */
> > >  DEFINE_SPINLOCK(inode_lock);
> > > +EXPORT_SYMBOL_GPL(inode_lock);
> > 
> > Hmmm... Commits to all NFS servers will be globally serialized via the 
> > inode_lock?
> 
> Hmm, right, thats not good indeed, I can pull the call to
> nfs_commit_list() out of that loop.

There is no reason to modify any of the commit stuff. Please just drop
that code.

Trond

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