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Date: Thu, 12 Apr 2001 03:27:13 -0400 (EDT)
From: Alexander Viro <viro@math.psu.edu>
To: linux-fsdevel@vger.kernel.org
cc: kowalski@datrix.co.za, Andreas Dilger <adilger@turbolinux.com>,
        linux-kernel@vger.kernel.org
Subject: [race][RFC] d_flags use
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On Thu, 12 Apr 2001, Andreas Dilger wrote:

> Al writes:
> > We _have_ VM pressure there. However, such loads had never been used, so
> > there's no wonder that system gets unbalanced under them.
> > 
> > I suspect that simple replacement of goto next; with continue; in the
> > fs/dcache.c::prune_dcache() may make situation seriously better.
> 
> Yes, it appears that this would be a bug.  We were only _checking_
> "count" dentries, rather than pruning "count" dentries.
> 
> Testing continues.

Uh-oh... After looking at prune_dcache for a minute... Folks, what
protects ->d_flags? That may very well be the reason of some NFS
and autofs problems.

If nobody objects I'll go for test_bit/set_bit/clear_bit here.
								Al