From bae9c19bf12bb2a914a8e530270f41d36cc87c63 Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Thu, 13 Jan 2011 15:46:46 -0800 Subject: thp: split_huge_page_mm/vma split_huge_page_pmd compat code. Each one of those would need to be expanded to hundred of lines of complex code without a fully reliable split_huge_page_pmd design. Signed-off-by: Andrea Arcangeli Acked-by: Rik van Riel Acked-by: Mel Gorman Signed-off-by: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/mempolicy.c | 1 + mm/mincore.c | 1 + mm/mprotect.c | 1 + mm/mremap.c | 1 + mm/pagewalk.c | 1 + 5 files changed, 5 insertions(+) (limited to 'mm') diff --git a/mm/mempolicy.c b/mm/mempolicy.c index e6d351265aed..83b7df309fc4 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -514,6 +514,7 @@ static inline int check_pmd_range(struct vm_area_struct *vma, pud_t *pud, pmd = pmd_offset(pud, addr); do { next = pmd_addr_end(addr, end); + split_huge_page_pmd(vma->vm_mm, pmd); if (pmd_none_or_clear_bad(pmd)) continue; if (check_pte_range(vma, pmd, addr, next, nodes, diff --git a/mm/mincore.c b/mm/mincore.c index 9ac42dc6d7b6..9959bb41570e 100644 --- a/mm/mincore.c +++ b/mm/mincore.c @@ -154,6 +154,7 @@ static void mincore_pmd_range(struct vm_area_struct *vma, pud_t *pud, pmd = pmd_offset(pud, addr); do { next = pmd_addr_end(addr, end); + split_huge_page_pmd(vma->vm_mm, pmd); if (pmd_none_or_clear_bad(pmd)) mincore_unmapped_range(vma, addr, next, vec); else diff --git a/mm/mprotect.c b/mm/mprotect.c index 4c5133873097..bd27db6b992b 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -88,6 +88,7 @@ static inline void change_pmd_range(struct mm_struct *mm, pud_t *pud, pmd = pmd_offset(pud, addr); do { next = pmd_addr_end(addr, end); + split_huge_page_pmd(mm, pmd); if (pmd_none_or_clear_bad(pmd)) continue; change_pte_range(mm, pmd, addr, next, newprot, dirty_accountable); diff --git a/mm/mremap.c b/mm/mremap.c index b09eefaea0b8..9925b6391b80 100644 --- a/mm/mremap.c +++ b/mm/mremap.c @@ -41,6 +41,7 @@ static pmd_t *get_old_pmd(struct mm_struct *mm, unsigned long addr) return NULL; pmd = pmd_offset(pud, addr); + split_huge_page_pmd(mm, pmd); if (pmd_none_or_clear_bad(pmd)) return NULL; diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 38cc58b8b2b0..7cfa6ae02303 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -34,6 +34,7 @@ static int walk_pmd_range(pud_t *pud, unsigned long addr, unsigned long end, pmd = pmd_offset(pud, addr); do { next = pmd_addr_end(addr, end); + split_huge_page_pmd(walk->mm, pmd); if (pmd_none_or_clear_bad(pmd)) { if (walk->pte_hole) err = walk->pte_hole(addr, next, walk); -- cgit v1.2.3