On Thu, 27 Aug 2015 14:33:11 +0530 Vineet Gupta <Vineet.Gupta1@xxxxxxxxxxxx> wrote: > This is purely cosmetic, just makes code more readable > > ... > > --- a/include/asm-generic/pgtable.h > +++ b/include/asm-generic/pgtable.h > @@ -30,9 +30,20 @@ extern int ptep_set_access_flags(struct vm_area_struct *vma, > #endif > > #ifndef __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS > +#ifdef CONFIG_TRANSPARENT_HUGEPAGE > extern int pmdp_set_access_flags(struct vm_area_struct *vma, > unsigned long address, pmd_t *pmdp, > pmd_t entry, int dirty); > +#else /* CONFIG_TRANSPARENT_HUGEPAGE */ > +static inline int pmdp_set_access_flags(struct vm_area_struct *vma, > + unsigned long address, pmd_t *pmdp, > + pmd_t entry, int dirty) > +{ > + BUG(); > + return 0; > +} Is it possible to simply leave this undefined? So the kernel fails at link time? > --- a/mm/pgtable-generic.c > +++ b/mm/pgtable-generic.c Good heavens that file is a mess. Your patch does improve it. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>