The patch titled
Subject: mm: add pt_mm to struct page
has been removed from the -mm tree. Its filename was
mm-add-pt_mm-to-struct-page.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Subject: mm: add pt_mm to struct page
For pgd page table pages, x86 overloads the page->index field to store a
pointer to the mm_struct. Rename this to pt_mm so it's visible to other
users.
Link: http://lkml.kernel.org/r/20180518194519.3820-13-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Cc: "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/pgtable.c | 5 ++---
include/linux/mm_types.h | 2 +-
2 files changed, 3 insertions(+), 4 deletions(-)
diff -puN arch/x86/mm/pgtable.c~mm-add-pt_mm-to-struct-page arch/x86/mm/pgtable.c
--- a/arch/x86/mm/pgtable.c~mm-add-pt_mm-to-struct-page
+++ a/arch/x86/mm/pgtable.c
@@ -114,13 +114,12 @@ static inline void pgd_list_del(pgd_t *p
static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm)
{
- BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm));
- virt_to_page(pgd)->index = (pgoff_t)mm;
+ virt_to_page(pgd)->pt_mm = mm;
}
struct mm_struct *pgd_page_get_mm(struct page *page)
{
- return (struct mm_struct *)page->index;
+ return page->pt_mm;
}
static void pgd_ctor(struct mm_struct *mm, pgd_t *pgd)
diff -puN include/linux/mm_types.h~mm-add-pt_mm-to-struct-page include/linux/mm_types.h
--- a/include/linux/mm_types.h~mm-add-pt_mm-to-struct-page
+++ a/include/linux/mm_types.h
@@ -139,7 +139,7 @@ struct page {
unsigned long _pt_pad_1; /* compound_head */
pgtable_t pmd_huge_pte; /* protected by page->ptl */
unsigned long _pt_pad_2; /* mapping */
- unsigned long _pt_pad_3;
+ struct mm_struct *pt_mm; /* x86 pgds only */
#if ALLOC_SPLIT_PTLOCKS
spinlock_t *ptl;
#else
_
Patches currently in -mm which might be from mawilcox@xxxxxxxxxxxxx are
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
