On Wed, 26 Sep 2007, Andrew Morton wrote:

> On Thu, 27 Sep 2007 10:30:50 +0800 "Yan Zheng" <[EMAIL PROTECTED]> wrote:
> 
> > Hello,
> > 
> > igrab return NULL on error.
> > 
> > Signed-off-by: Yan Zheng<[EMAIL PROTECTED]>
> > ---
> > diff -ur linux-2.6.23-rc8/fs/anon_inodes.c linux/fs/anon_inodes.c
> > --- linux-2.6.23-rc8/fs/anon_inodes.c       2007-09-27 10:05:07.000000000 
> > +0800
> > +++ linux/fs/anon_inodes.c  2007-09-27 10:18:26.000000000 +0800
> > @@ -87,8 +87,8 @@
> >             return -ENFILE;
> > 
> >     inode = igrab(anon_inode_inode);
> > -   if (IS_ERR(inode)) {
> > -           error = PTR_ERR(inode);
> > +   if (!inode) {
> > +           error = -ENOENT;
> >             goto err_put_filp;
> >     }
> 
> hm, does that code actually need to exist?  igrab() is pretty expensive and
> that fs is permanently mounted anyway...

yes. The inode gets attached the the file*, and on its way out an iput() 
is done.
Funny, I noticed the non-ERR_PTR return code of igrab() just yesterday, 
and I was going to port a patch today.


Signed-off-by: Davide Libenzi <[EMAIL PROTECTED]>



- Davide


-
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