linux-kernel - Re: linux-next: build warning after merge of the vfs tree

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Message-ID: <20100705081542.41f6bdc8@corrin.poochiereds.net>
Date:	Mon, 5 Jul 2010 08:15:42 -0400
From:	Jeff Layton <jlayton@...hat.com>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build warning after merge of the vfs tree

On Mon, 5 Jul 2010 09:10:19 +0100
Al Viro <viro@...IV.linux.org.uk> wrote:

> On Mon, Jul 05, 2010 at 10:01:21AM +1000, Stephen Rothwell wrote:
> > Hi Al,
> > 
> > After merging the vfs tree, today's linux-next build (powerpc
> > ppc64_defconfig) produced these warnings:
> > 
> > fs/cifs/cifsfs.c: In function 'cifs_drop_inode':
> > fs/cifs/cifsfs.c:481: warning: 'return' with a value, in function returning void
> > fs/cifs/cifsfs.c:483: warning: 'return' with a value, in function returning void
> > fs/cifs/cifsfs.c: At top level:
> > fs/cifs/cifsfs.c:491: warning: initialization from incompatible pointer type
> > 
> > Introduced by commit 12420ac341533f3715b3deb788637568f22b78ff ("cifs:
> > implement drop_inode superblock op") (which entered Linus' tree on June
> > 28) interacting with commit 1fd3b83deb5125288bee98f32a41c3267b8ed534
> > ("Make ->drop_inode() just return whether inode needs to be dropped")
> > from the vfs tree.  I guess the cifs tree was missed bye the vfs tree
> > update.
> 
> Fixed.  Incidentally, could somebody explain WTF do we put the inodes into
> icache in case !serverino?

Thanks, Al.

We use iunique to generate inode numbers in that case, and I believe
that requires hashed inodes to ensure uniqueness.

-- 
Jeff Layton <jlayton@...hat.com>
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