On Sun, Jun 09, 2013 at 09:09:24PM +0100, Ben Hutchings wrote: > Commit 52f36be0f4e2 's390/pgtable: Fix check for pgste/storage key > handling', which was commit b56433cb782d upstream, added a use of > pgste to ptep_modify_prot_start(), but this variable does not exist. > In mainline, pgste was added by commit d3383632d4e8 's390/mm: add pte > invalidation notifier for kvm' and initialised to the return value of > pgste_get_lock(ptep). Initialise it similarly here. > > Compile-tested only. > > Signed-off-by: Ben Hutchings <[email protected]> > --- > --- a/arch/s390/include/asm/pgtable.h > +++ b/arch/s390/include/asm/pgtable.h > @@ -1063,11 +1063,12 @@ static inline pte_t ptep_modify_prot_sta > unsigned long address, > pte_t *ptep) > { > + pgste_t pgste; > pte_t pte; > > mm->context.flush_mm = 1; > if (mm_has_pgste(mm)) > - pgste_get_lock(ptep); > + pgste = pgste_get_lock(ptep); > > pte = *ptep; > if (!mm_exclusive(mm))
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