From: Al Viro <viro@ZenIV.linux.org.uk>
To: Nick Piggin <npiggin@gmail.com>
Cc: "J. R. Okajima" <hooanon05@yahoo.co.jp>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: vfs-scale, d_revalidate from nfsd
Date: Fri, 14 Jan 2011 03:38:46 +0000 [thread overview]
Message-ID: <20110114033846.GX19804@ZenIV.linux.org.uk> (raw)
In-Reply-To: <AANLkTi=NJE-rXgFZ44BU4U2KrDg0657ucpupT+RGC4sj@mail.gmail.com>
On Fri, Jan 14, 2011 at 02:29:11PM +1100, Nick Piggin wrote:
> > ? ? ? ?if (nd->flags & LOOKUP_RCU)
> > ? ? ? ? ? ? ? ?return -ECHILD;
> > ? ? ? ?return -EPERM;
> > }
> > when the sole intent of that sucker is to have dentry of /.xattr (pinned
> > in dcache and hashed all along) rejected on lookups from root? ?IOW, WTF
> > bother with -ECHILD here at all?
>
> That's true. I guess I always have a weakness for doing "just one
> little easy optimisation/simplification" folded into patch that is supposed
> to be more mechanical changes :) I did have exactly that in the patch
> initially, but I decided it's better just to do everything with -ECHILD first.
>
> That also gives the -ECHILD paths a bit more workout before
> fs conversions are done, too.
Not unless your test loads include trying to access pathnames like
/.xattr/whatever on reiserfs and watching those attempts fail...
next prev parent reply other threads:[~2011-01-14 3:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-13 14:03 vfs-scale, d_revalidate from nfsd J. R. Okajima
2011-01-14 2:57 ` Nick Piggin
2011-01-14 3:03 ` Al Viro
2011-01-14 3:12 ` Nick Piggin
2011-01-14 3:20 ` Al Viro
2011-01-14 3:22 ` Al Viro
2011-01-14 3:29 ` Nick Piggin
2011-01-14 3:38 ` Al Viro [this message]
2011-01-15 3:47 ` J. R. Okajima
2011-01-15 18:11 ` Nick Piggin
2011-02-15 5:07 ` J. R. Okajima
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