Re: [PATCH] fs: Work around NFS wreckage

[Thomas Gleixner]

On Fri, 14 Jan 2011, Nick Piggin wrote:

> On Fri, Jan 14, 2011 at 3:41 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> > On Thu, 13 Jan 2011, J. R. Okajima wrote:
> >> Thomas Gleixner:
> >> > The dcache scalability work broke NFS root filesystems.
> >>       :::
> >> > Check for parent equal dentry and skip the nested lock to avoid the
> >> > deadlock. I'm sure this is the wrong fix, but at least it "works" :)
> >>
> >> With this patch, can you unmount it cleanly?
> >> It skips incrementing d_count for both dentries.
> >> Do we need at least one?
> >
> 
> Yeah thanks everyone for reporting this.
> 
> I have a fix for it in a slightly different way, and a couple of other reported
> bugs, which are going through stress testing now.

Can you point us to the patches, so we can run our own set of
tests in paralell?

Thanks,

	tglx