linux-kernel - Re: vfs-scale, nd->inode after __do_follow

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Message-ID: <AANLkTik=7x9o3s_TeVAACjNachLE7zyrbqyOeBBiE-v5@mail.gmail.com>
Date:	Fri, 14 Jan 2011 10:17:25 +0100
From:	Sedat Dilek <sedat.dilek@...glemail.com>
To:	Nick Piggin <npiggin@...il.com>, patchwork@...ts.ozlabs.org
Cc:	Al Viro <viro@...iv.linux.org.uk>,
	"J. R. Okajima" <hooanon05@...oo.co.jp>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-kernel@...r.kernel.org, webmaster@...nel.org
Subject: Re: vfs-scale, nd->inode after __do_follow_link()

On Fri, Jan 14, 2011 at 9:40 AM, Nick Piggin <npiggin@...il.com> wrote:
> On Fri, Jan 14, 2011 at 4:28 PM, Al Viro <viro@...iv.linux.org.uk> wrote:
>> On Fri, Jan 14, 2011 at 03:09:10PM +1100, Nick Piggin wrote:
>>
>>> > + ? ? ? ? ? ? ? ? ? ? ? struct dentry *i = path.dentry->d_inode;
>>> > + ? ? ? ? ? ? ? ? ? ? ? if (!IS_ERR(cookie) && i->i_op->put_link)
>>> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? i->i_op->put_link(path.dentry, &nd, cookie);
>>> > ? ? ? ? ? ? ? ? ? ? ? ?/* nd.path had been dropped */
>>> > ? ? ? ? ? ? ? ? ? ? ? ?nd.path = path;
>>> > ? ? ? ? ? ? ? ? ? ? ? ?goto out_path;
>>>
>>> It should be the inode we followed, rather than the inode of the
>>> new path, I think.
>>
>> And that's what the first argument of __do_follow_link() is.  I'm actually
>> tempted to rename it from path to symlink and make it const to clarify
>> the things a bit.
>
> Yes I was completely wrong there, thanks again for another good
> catch. I'll merge this in the vfs-scale branch, and ask to merge if
> there are no objections.
>

[ CCing patchwork ML ]

Can you send your patch separately, please?
Within a (long) thread it is eaten up.

As *.patch are somehow not presented as diff (see [1]), someone can't
catch them from <patchwork.k.o>.

Furthermore, it would be very cool to see linux-fsdevel (patches from
its ML) in <patchwork.d.o>.
I don't know whom to contact from the linux-fsdevel ML, sorry for this.

- Sedat -

[1] http://lkml.org/lkml/2011/1/14/55
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