Messages in this thread | | | Date | Fri, 23 May 2008 08:40:36 +0900 | From | Paul Mundt <> | Subject | Re: [PATCH] nommu: fix kobjsize() for SLOB and SLUB |
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On Thu, May 22, 2008 at 07:09:04PM +0300, Pekka J Enberg wrote: > Index: slab-2.6/mm/nommu.c > =================================================================== > --- slab-2.6.orig/mm/nommu.c 2008-05-22 18:59:01.000000000 +0300 > +++ slab-2.6/mm/nommu.c 2008-05-22 19:00:36.000000000 +0300 > @@ -109,12 +109,22 @@ > * If the object we have should not have ksize performed on it, > * return size of 0 > */ > - if (!objp || (unsigned long)objp >= memory_end || !((page = virt_to_page(objp)))) > + if (!objp) > + return 0; > + > + if ((unsigned long) objp >= memory_end) > + return 0; > + > + page = virt_to_head_page(objp); > + if (!page) > return 0; > > if (PageSlab(page)) > return ksize(objp); > Is ksize() happy with taking the head page instead of virt_to_page(objp)?
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