Re: [PATCH] Containment measures for slab objects on scatter gather lists

Christoph Hellwig
2007-06-30T08:50:15Z

On Thu, Jun 28, 2007 at 10:24:24PM -0700, Andrew Morton wrote:
> > Really, it would be great if we could treat kmalloc() objects
> > just like real pages.
>
> >From a high level, that seems like a bad idea. kmalloc() gives you a
> virtual address and you really shouldn't be poking around at that memory's
> underlying page's pageframe metadata.
>
> However we can of course do tasteless and weird things if the benefit is
> sufficient....

Hey, when we had exactly that issues coming up with xfs/ext3 recovery over
iscsi/aoe you said it's fine :) End result is that XFS got fixed and ext3
is still broken..