summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorCatalin Marinas <catalin.marinas@arm.com>2013-07-01 11:20:58 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2013-07-01 11:20:58 +0100
commitaa729dccb5e8dfbc78e2e235b8754d6acccee731 (patch)
treef6123726a25957481e2528b9b6b0d0cfd992a5fb /include
parentee877b5321c4dfee9dc9f2a12b19ddcd33149f6a (diff)
parentaf07484863e0c20796081e57093886c22dc16705 (diff)
downloadlinux-aa729dccb5e8dfbc78e2e235b8754d6acccee731.tar.bz2
Merge branch 'for-next/hugepages' of git://git.linaro.org/people/stevecapper/linux into upstream-hugepages
* 'for-next/hugepages' of git://git.linaro.org/people/stevecapper/linux: ARM64: mm: THP support. ARM64: mm: Raise MAX_ORDER for 64KB pages and THP. ARM64: mm: HugeTLB support. ARM64: mm: Move PTE_PROT_NONE bit. ARM64: mm: Make PAGE_NONE pages read only and no-execute. ARM64: mm: Restore memblock limit when map_mem finished. mm: thp: Correct the HPAGE_PMD_ORDER check. x86: mm: Remove general hugetlb code from x86. mm: hugetlb: Copy general hugetlb code from x86 to mm. x86: mm: Remove x86 version of huge_pmd_share. mm: hugetlb: Copy huge_pmd_share from x86 to mm. Conflicts: arch/arm64/Kconfig arch/arm64/include/asm/pgtable-hwdef.h arch/arm64/include/asm/pgtable.h
Diffstat (limited to 'include')
-rw-r--r--include/linux/huge_mm.h2
-rw-r--r--include/linux/hugetlb.h4
2 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 528454c2caa9..26ee56c80dc7 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -123,7 +123,7 @@ extern void __split_huge_page_pmd(struct vm_area_struct *vma,
} while (0)
extern void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address,
pmd_t *pmd);
-#if HPAGE_PMD_ORDER > MAX_ORDER
+#if HPAGE_PMD_ORDER >= MAX_ORDER
#error "hugepages can't be allocated by the buddy allocator"
#endif
extern int hugepage_madvise(struct vm_area_struct *vma,
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 6b4890fa57e7..981546ad231c 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -69,6 +69,10 @@ void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed);
int dequeue_hwpoisoned_huge_page(struct page *page);
void copy_huge_page(struct page *dst, struct page *src);
+#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
+pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud);
+#endif
+
extern unsigned long hugepages_treat_as_movable;
extern const unsigned long hugetlb_zero, hugetlb_infinity;
extern int sysctl_hugetlb_shm_group;