linux-kernel - Re: [PATCH] Add a refcount check in dput()

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Message-ID: <6599ad830709171121r1ded056j7dc676bb6f37e231@mail.gmail.com>
Date:	Mon, 17 Sep 2007 11:21:35 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add a refcount check in dput()

On 9/15/07, Andrew Morton <akpm@...ux-foundation.org> wrote:
> >
> > +     BUG_ON(!atomic_read(&dentry->d_count));
> >  repeat:
> >       if (atomic_read(&dentry->d_count) == 1)
> >               might_sleep();
>
> eek, much too aggressive.

How about the equivalent BUG_ON() in dget()? I figure that they ought
to both be of the same strictness.

Paul
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