From: aarcange@redhat.com
To: linux-mm@kvack.org
Cc: Andrea Arcangeli <aarcange@redhat.com>,
Rik van Riel <riel@redhat.com>, Mel Gorman <mel@csn.ul.ie>
Subject: [patch 21/35] split_huge_page_mm/vma
Date: Fri, 26 Feb 2010 21:04:54 +0100 [thread overview]
Message-ID: <20100226200902.284065683@redhat.com> (raw)
In-Reply-To: 20100226200433.516502198@redhat.com
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[-- Type: text/plain, Size: 2655 bytes --]
From: Andrea Arcangeli <aarcange@redhat.com>
split_huge_page_mm/vma 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_mm/vma functionality.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
---
arch/x86/kernel/vm86_32.c | 1 +
mm/mempolicy.c | 1 +
mm/mincore.c | 1 +
mm/mprotect.c | 1 +
mm/mremap.c | 1 +
mm/pagewalk.c | 1 +
6 files changed, 6 insertions(+)
--- 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
if (pud_none_or_clear_bad(pud))
goto out;
pmd = pmd_offset(pud, 0xA0000);
+ split_huge_page_mm(mm, 0xA0000, pmd);
if (pmd_none_or_clear_bad(pmd))
goto out;
pte = pte_offset_map_lock(mm, pmd, 0xA0000, &ptl);
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -446,6 +446,7 @@ static inline int check_pmd_range(struct
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
+ split_huge_page_vma(vma, pmd);
if (pmd_none_or_clear_bad(pmd))
continue;
if (check_pte_range(vma, pmd, addr, next, nodes,
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -132,6 +132,7 @@ static long do_mincore(unsigned long add
if (pud_none_or_clear_bad(pud))
goto none_mapped;
pmd = pmd_offset(pud, addr);
+ split_huge_page_vma(vma, pmd);
if (pmd_none_or_clear_bad(pmd))
goto none_mapped;
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -89,6 +89,7 @@ static inline void change_pmd_range(stru
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
+ split_huge_page_mm(mm, addr, pmd);
if (pmd_none_or_clear_bad(pmd))
continue;
change_pte_range(mm, pmd, addr, next, newprot, dirty_accountable);
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -42,6 +42,7 @@ static pmd_t *get_old_pmd(struct mm_stru
return NULL;
pmd = pmd_offset(pud, addr);
+ split_huge_page_mm(mm, addr, pmd);
if (pmd_none_or_clear_bad(pmd))
return NULL;
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -34,6 +34,7 @@ static int walk_pmd_range(pud_t *pud, un
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
+ split_huge_page_mm(walk->mm, addr, pmd);
if (pmd_none_or_clear_bad(pmd)) {
if (walk->pte_hole)
err = walk->pte_hole(addr, next, walk);
--
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next prev parent reply other threads:[~2010-02-26 20:09 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-26 20:04 [patch 00/35] Transparent Hugepage support #12 aarcange
2010-02-26 20:04 ` [patch 01/35] define MADV_HUGEPAGE aarcange
2010-02-26 20:04 ` [patch 02/35] compound_lock aarcange
2010-02-26 20:04 ` [patch 03/35] alter compound get_page/put_page aarcange
2010-02-26 20:04 ` [patch 04/35] update futex compound knowledge aarcange
2010-02-26 20:04 ` [patch 05/35] fix bad_page to show the real reason the page is bad aarcange
2010-02-26 20:04 ` [patch 06/35] clear compound mapping aarcange
2010-02-26 20:04 ` [patch 07/35] add native_set_pmd_at aarcange
2010-02-26 20:04 ` [patch 08/35] add pmd paravirt ops aarcange
2010-02-26 20:04 ` [patch 09/35] no paravirt version of pmd ops aarcange
2010-02-26 20:04 ` [patch 10/35] export maybe_mkwrite aarcange
2010-02-26 20:04 ` [patch 11/35] comment reminder in destroy_compound_page aarcange
2010-02-26 20:04 ` [patch 12/35] config_transparent_hugepage aarcange
2010-02-26 20:04 ` [patch 13/35] special pmd_trans_* functions aarcange
2010-02-26 20:04 ` [patch 14/35] add pmd mangling generic functions aarcange
2010-02-26 20:04 ` [patch 15/35] add pmd mangling functions to x86 aarcange
2010-02-26 20:04 ` [patch 16/35] bail out gup_fast on splitting pmd aarcange
2010-02-26 20:04 ` [patch 17/35] pte alloc trans splitting aarcange
2010-02-26 20:04 ` [patch 18/35] add pmd mmu_notifier helpers aarcange
2010-02-26 20:04 ` [patch 19/35] clear page compound aarcange
2010-02-26 20:04 ` [patch 20/35] add pmd_huge_pte to mm_struct aarcange
2010-02-26 20:04 ` aarcange [this message]
2010-02-26 20:04 ` [patch 22/35] split_huge_page paging aarcange
2010-02-26 20:04 ` [patch 23/35] clear_copy_huge_page aarcange
2010-02-26 20:04 ` [patch 24/35] kvm mmu transparent hugepage support aarcange
2010-02-26 20:04 ` [patch 25/35] _GFP_NO_KSWAPD aarcange
2010-02-26 20:04 ` [patch 26/35] dont alloc harder for gfp nomemalloc even if nowait aarcange
2010-02-26 20:05 ` [patch 27/35] transparent hugepage core aarcange
2010-02-26 20:05 ` [patch 28/35] adapt to mm_counter in -mm aarcange
2010-02-26 20:05 ` [patch 29/35] verify pmd_trans_huge isnt leaking aarcange
2010-02-26 20:05 ` [patch 30/35] madvise(MADV_HUGEPAGE) aarcange
2010-02-26 20:05 ` [patch 31/35] pmd_trans_huge migrate bugcheck aarcange
2010-02-26 20:05 ` [patch 32/35] memcg compound aarcange
2010-02-26 20:05 ` [patch 33/35] memcg huge memory aarcange
2010-02-26 20:05 ` [patch 34/35] transparent hugepage vmstat aarcange
2010-02-26 20:05 ` [patch 35/35] khugepaged aarcange
-- strict thread matches above, loose matches on Subject: below --
2010-03-09 19:39 [patch 00/35] Transparent Hugepage support #13 aarcange
2010-03-09 19:39 ` [patch 21/35] split_huge_page_mm/vma aarcange
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