diff options
| author | Andrea Arcangeli | 2011-01-14 00:46:46 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2011-01-14 02:32:41 +0100 |
| commit | bae9c19bf12bb2a914a8e530270f41d36cc87c63 (patch) | |
| tree | 19807de9c2cb9b47fa842a549bd8c2c21579e323 | |
| parent | thp: add pmd_huge_pte to mm_struct (diff) | |
| download | kernel-qcow2-linux-bae9c19bf12bb2a914a8e530270f41d36cc87c63.tar.gz kernel-qcow2-linux-bae9c19bf12bb2a914a8e530270f41d36cc87c63.tar.xz kernel-qcow2-linux-bae9c19bf12bb2a914a8e530270f41d36cc87c63.zip | |
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 <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/x86/kernel/vm86_32.c | 1 | ||||
| -rw-r--r-- | mm/mempolicy.c | 1 | ||||
| -rw-r--r-- | mm/mincore.c | 1 | ||||
| -rw-r--r-- | mm/mprotect.c | 1 | ||||
| -rw-r--r-- | mm/mremap.c | 1 | ||||
| -rw-r--r-- | mm/pagewalk.c | 1 |
6 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index 61fb98519622..863f8753ab0a 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -179,6 +179,7 @@ static void mark_screen_rdonly(struct mm_struct *mm) if (pud_none_or_clear_bad(pud)) goto out; pmd = pmd_offset(pud, 0xA0000); + split_huge_page_pmd(mm, pmd); if (pmd_none_or_clear_bad(pmd)) goto out; pte = pte_offset_map_lock(mm, pmd, 0xA0000, &ptl); 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); |