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authorChen, Kenneth W <kenneth.w.chen@intel.com>2006-03-22 10:49:00 -0800
committerTony Luck <tony.luck@intel.com>2006-03-22 14:35:08 -0800
commit2332c9ae7911618575241e0c843cd686968db8e3 (patch)
tree24363aeb963d00cb3aab67f9586eae78ac54dfd8
parent1c2e02750b992703a8a18634e08b04353face243 (diff)
downloadlinux-2332c9ae7911618575241e0c843cd686968db8e3.tar.bz2
[IA64] fix ia64 is_hugepage_only_range
fix is_hugepage_only_range() definition to be "overlaps" instead of "within architectural restricted hugetlb address range". Simplify the ia64 specific code that used to use is_hugepage_only_range() to just check which region the address is in. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
-rw-r--r--arch/ia64/mm/hugetlbpage.c7
-rw-r--r--include/asm-ia64/page.h2
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index 9dbc7dadd165..8d506710fdbd 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -113,8 +113,7 @@ void hugetlb_free_pgd_range(struct mmu_gather **tlb,
unsigned long floor, unsigned long ceiling)
{
/*
- * This is called only when is_hugepage_only_range(addr,),
- * and it follows that is_hugepage_only_range(end,) also.
+ * This is called to free hugetlb page tables.
*
* The offset of these addresses from the base of the hugetlb
* region must be scaled down by HPAGE_SIZE/PAGE_SIZE so that
@@ -126,9 +125,9 @@ void hugetlb_free_pgd_range(struct mmu_gather **tlb,
addr = htlbpage_to_page(addr);
end = htlbpage_to_page(end);
- if (is_hugepage_only_range(tlb->mm, floor, HPAGE_SIZE))
+ if (REGION_NUMBER(floor) == RGN_HPAGE)
floor = htlbpage_to_page(floor);
- if (is_hugepage_only_range(tlb->mm, ceiling, HPAGE_SIZE))
+ if (REGION_NUMBER(ceiling) == RGN_HPAGE)
ceiling = htlbpage_to_page(ceiling);
free_pgd_range(tlb, addr, end, floor, ceiling);
diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h
index 3ab27333dae4..6e9aa23250c4 100644
--- a/include/asm-ia64/page.h
+++ b/include/asm-ia64/page.h
@@ -149,7 +149,7 @@ typedef union ia64_va {
| (REGION_OFFSET(x) >> (HPAGE_SHIFT-PAGE_SHIFT)))
# define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
# define is_hugepage_only_range(mm, addr, len) \
- (REGION_NUMBER(addr) == RGN_HPAGE && \
+ (REGION_NUMBER(addr) == RGN_HPAGE || \
REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE)
extern unsigned int hpage_shift;
#endif