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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2013-09-12 01:22:06 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-12 02:57:48 +0400
commit74060e4d78795c7c43805133cb717d82533d4e0d (patch)
tree923febdc5b4565fbbcf05387d7cc423c72648695 /include/linux/hugetlb.h
parente632a938d914d271bec26e570d36c755a1e35e4c (diff)
downloadlinux-74060e4d78795c7c43805133cb717d82533d4e0d.tar.xz
mm: mbind: add hugepage migration code to mbind()
Extend do_mbind() to handle vma with VM_HUGETLB set. We will be able to migrate hugepage with mbind(2) after applying the enablement patch which comes later in this series. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Acked-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Acked-by: Hillf Danton <dhillf@gmail.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Hugh Dickins <hughd@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Rik van Riel <riel@redhat.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/hugetlb.h')
-rw-r--r--include/linux/hugetlb.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index bc8d8370cd0d..d1db00790a84 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -265,6 +265,8 @@ struct huge_bootmem_page {
};
struct page *alloc_huge_page_node(struct hstate *h, int nid);
+struct page *alloc_huge_page_noerr(struct vm_area_struct *vma,
+ unsigned long addr, int avoid_reserve);
/* arch callback */
int __init alloc_bootmem_huge_page(struct hstate *h);
@@ -378,6 +380,7 @@ static inline pgoff_t basepage_index(struct page *page)
#else /* CONFIG_HUGETLB_PAGE */
struct hstate {};
#define alloc_huge_page_node(h, nid) NULL
+#define alloc_huge_page_noerr(v, a, r) NULL
#define alloc_bootmem_huge_page(h) NULL
#define hstate_file(f) NULL
#define hstate_sizelog(s) NULL