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authorChristoph Lameter <clameter@engr.sgi.com>2006-01-06 03:10:46 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-06 11:33:23 -0500
commit5da7ca86078964cbfe6c83efc1205904587706fe (patch)
treea64a7824e90b42d6fdd71e6cb652362beb8983a1 /include/linux/hugetlb.h
parent96df9333c94d7d5aeceb21f6c5e7ae8ff34753cf (diff)
[PATCH] Add NUMA policy support for huge pages.
The huge_zonelist() function in the memory policy layer provides an list of zones ordered by NUMA distance. The hugetlb layer will walk that list looking for a zone that has available huge pages but is also in the nodeset of the current cpuset. This patch does not contain the folding of find_or_alloc_huge_page() that was controversial in the earlier discussion. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@muc.de> Acked-by: William Lee Irwin III <wli@holomorphy.com> Cc: Adam Litke <agl@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r--include/linux/hugetlb.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 1056717ee501..68d82ad6b17c 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -22,7 +22,7 @@ int hugetlb_report_meminfo(char *);
22int hugetlb_report_node_meminfo(int, char *); 22int hugetlb_report_node_meminfo(int, char *);
23int is_hugepage_mem_enough(size_t); 23int is_hugepage_mem_enough(size_t);
24unsigned long hugetlb_total_pages(void); 24unsigned long hugetlb_total_pages(void);
25struct page *alloc_huge_page(void); 25struct page *alloc_huge_page(struct vm_area_struct *, unsigned long);
26void free_huge_page(struct page *); 26void free_huge_page(struct page *);
27int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, 27int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
28 unsigned long address, int write_access); 28 unsigned long address, int write_access);
@@ -97,7 +97,7 @@ static inline unsigned long hugetlb_total_pages(void)
97#define is_hugepage_only_range(mm, addr, len) 0 97#define is_hugepage_only_range(mm, addr, len) 0
98#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \ 98#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
99 do { } while (0) 99 do { } while (0)
100#define alloc_huge_page() ({ NULL; }) 100#define alloc_huge_page(vma, addr) ({ NULL; })
101#define free_huge_page(p) ({ (void)(p); BUG(); }) 101#define free_huge_page(p) ({ (void)(p); BUG(); })
102#define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; }) 102#define hugetlb_fault(mm, vma, addr, write) ({ BUG(); 0; })
103 103