Subject: + mm-place-page-pmd_huge_pte-to-right-union.patch added to -mm tree
To: kirill.shutemov@xxxxxxxxxxxxxxx,n-horiguchi@xxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 21 Nov 2013 12:37:39 -0800
The patch titled
Subject: mm: place page->pmd_huge_pte to right union
has been added to the -mm tree. Its filename is
mm-place-page-pmd_huge_pte-to-right-union.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-place-page-pmd_huge_pte-to-right-union.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-place-page-pmd_huge_pte-to-right-union.patch
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From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: mm: place page->pmd_huge_pte to right union
I don't know what went wrong, mis-merge or something, but ->pmd_huge_pte
placed in wrong union within struct page.
In original patch[1] it's placed to union with ->lru and ->slab, but in
commit e009bb30c8df it's in union with ->index and ->freelist.
That union seems also unused for pages with table tables and safe to
re-use, but it's not what I've tested.
Let's move it to original place. It fixes indentation at least. :)
[1] https://lkml.org/lkml/2013/10/7/288
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm_types.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN include/linux/mm_types.h~mm-place-page-pmd_huge_pte-to-right-union include/linux/mm_types.h
--- a/include/linux/mm_types.h~mm-place-page-pmd_huge_pte-to-right-union
+++ a/include/linux/mm_types.h
@@ -65,9 +65,6 @@ struct page {
* this page is only used to
* free other pages.
*/
-#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
- pgtable_t pmd_huge_pte; /* protected by page->ptl */
-#endif
};
union {
@@ -135,6 +132,9 @@ struct page {
struct list_head list; /* slobs list of pages */
struct slab *slab_page; /* slab fields */
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
+ pgtable_t pmd_huge_pte; /* protected by page->ptl */
+#endif
};
/* Remainder is not double word aligned */
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
origin.patch
x86-mm-do-not-leak-page-ptl-for-pmd-page-tables.patch
mm-place-page-pmd_huge_pte-to-right-union.patch
x86-mm-get-aslr-work-for-hugetlb-mappings.patch
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