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authorJohannes Weiner <hannes@cmpxchg.org>2011-01-13 15:47:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-13 17:32:44 -0800
commitf2d6bfe9ff0acec30b713614260e78b03d20e909 (patch)
tree835dd9f4167513d94ae542cf92347ea98bff5ddc /arch/x86/mm
parent5f24ce5fd34c3ca1b3d10d30da754732da64d5c0 (diff)
downloadop-kernel-dev-f2d6bfe9ff0acec30b713614260e78b03d20e909.zip
op-kernel-dev-f2d6bfe9ff0acec30b713614260e78b03d20e909.tar.gz
thp: add x86 32bit support
Add support for transparent hugepages to x86 32bit. Share the same VM_ bitflag for VM_MAPPED_COPY. mm/nommu.c will never support transparent hugepages. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/pgtable.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 65e92d5..500242d 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -362,7 +362,7 @@ int pmdp_test_and_clear_young(struct vm_area_struct *vma,
if (pmd_young(*pmdp))
ret = test_and_clear_bit(_PAGE_BIT_ACCESSED,
- (unsigned long *) &pmdp->pmd);
+ (unsigned long *)pmdp);
if (ret)
pmd_update(vma->vm_mm, addr, pmdp);
@@ -404,7 +404,7 @@ void pmdp_splitting_flush(struct vm_area_struct *vma,
int set;
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
set = !test_and_set_bit(_PAGE_BIT_SPLITTING,
- (unsigned long *)&pmdp->pmd);
+ (unsigned long *)pmdp);
if (set) {
pmd_update(vma->vm_mm, address, pmdp);
/* need tlb flush only to serialize against gup-fast */
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