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| author | Andi Kleen <ak@suse.de> | 2008-07-23 21:27:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 10:47:18 -0700 |
| commit | ceb868796181dc95ea01a110e123afd391639873 (patch) | |
| tree | 991be618e5195b05c31974a19adb4b9602315013 /mm/hugetlb.c | |
| parent | 4abd32dbab201c3ced0b0af12accea77cd9eeffc (diff) | |
| download | op-kernel-dev-ceb868796181dc95ea01a110e123afd391639873.zip op-kernel-dev-ceb868796181dc95ea01a110e123afd391639873.tar.gz | |
hugetlb: introduce pud_huge
Straight forward extensions for huge pages located in the PUD instead of
PMDs.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 0c74c14..107c1ce 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1996,6 +1996,15 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, return ret; } +/* Can be overriden by architectures */ +__attribute__((weak)) struct page * +follow_huge_pud(struct mm_struct *mm, unsigned long address, + pud_t *pud, int write) +{ + BUG(); + return NULL; +} + int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma, struct page **pages, struct vm_area_struct **vmas, unsigned long *position, int *length, int i, |
