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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 

Pull one s390 fix from Martin Schwidefsky:
 "Another transparent huge page fix, we need to define a s390 variant
  for pmdp_set_wrprotect to flush the TLB for the huge page correctly."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/thp: implement pmdp_set_wrprotect()
This commit is contained in:
Linus Torvalds 2013-01-30 11:58:26 +11:00
parent d6a3bf93d6 be3286507d
commit 8e5d573a6a
1 changed files with 12 additions and 0 deletions
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12
arch/s390/include/asm/pgtable.h
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@ -1365,6 +1365,18 @@ static inline void pmdp_invalidate(struct vm_area_struct *vma,
__pmd_idte(address, pmdp);
}
#define __HAVE_ARCH_PMDP_SET_WRPROTECT
static inline void pmdp_set_wrprotect(struct mm_struct *mm,
unsigned long address, pmd_t *pmdp)
{
pmd_t pmd = *pmdp;
if (pmd_write(pmd)) {
__pmd_idte(address, pmdp);
set_pmd_at(mm, address, pmdp, pmd_wrprotect(pmd));
}
}
static inline pmd_t mk_pmd_phys(unsigned long physpage, pgprot_t pgprot)
{
pmd_t __pmd;