Re: XFS warning in 2.6.18-rc4

From: Jesper Juhl
Date: Thu Aug 10 2006 - 20:00:39 EST

On 11/08/06, Nathan Scott <nathans@xxxxxxx> wrote:
On Fri, Aug 11, 2006 at 01:47:43AM +0200, Jesper Juhl wrote:
> On 10/08/06, Nathan Scott <nathans@xxxxxxx> wrote:
> > On Wed, Aug 09, 2006 at 11:04:53PM +0300, Meelis Roos wrote:
> > > fs/xfs/xfs_bmap.c: In function 'xfs_bmapi':
> > > fs/xfs/xfs_bmap.c:2662: warning: 'rtx' is used uninitialized in this function
> >
> > You have a particularly dense compiler, unfortunately. This code
> > has always been this way, its just a false cc warning that can be
> > safely ignored until you upgrade to a fixed compiler (unless I'm
> > missing something - please enlighten me if so). It does seem to
> > be the case that there is no way 'rtx' will be used uninitialised
> > when xfs_rtpick_extent() doesn't fail... no?
> >
> Ok, I may be reading something wrong here, but I think the warning is
> actually not correct.

Thats how I read it too. By "dense" I meant "buggy".

> Or am I missing something ?

Nope, thats my understanding too. The compiler is wrong in this case.
The only open issue I guess is whether its worh rearranging the code
to stop people reporting it as a problem... *shrug*.

I don't see how it would hurt ;)

Jesper Juhl <jesper.juhl@xxxxxxxxx>
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