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SubjectRe: [PATCH] : Add dev-id and inode number for debugging in init_special_inode in fs/inode.c
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On Thu, Apr 2, 2009 at 3:20 AM, Andrew Morton <akpm@linux-foundation.org> wrote:
>
> On Tue, 31 Mar 2009 08:11:00 +0530
> Manish Katiyar <mkatiyar@gmail.com> wrote:
>
> > --- a/fs/inode.c
> > +++ b/fs/inode.c
> > @@ -1540,7 +1540,8 @@ void init_special_inode(struct inode *inode, umode_t mode, dev_t rdev)
> >       else if (S_ISSOCK(mode))
> >               inode->i_fop = &bad_sock_fops;
> >       else
> > -             printk(KERN_DEBUG "init_special_inode: bogus i_mode (%o)\n",
> > -                    mode);
> > +             printk(KERN_DEBUG "init_special_inode: bogus i_mode (%o) for"
> > +                               " inode %s:%lu\n", mode, inode->i_sb->s_id,
> > +                               inode->i_ino);
> >  }
>
> Is ther a guarantee that inode->i_sb and inode->i_ino have been initialised
> at this time?

Hi Andrew,

I checked the code and most of the places we are trying to access
inode->i_sb , inode->i_ino before this function call or after this,
without any checks. So looks like we will have the values at this
point of time.

Thanks -
Manish
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