The patch titled
mlock-mlocked-pages-are-unevictable-fix
has been added to the -mm tree. Its filename is
mlock-mlocked-pages-are-unevictable-fix.patch
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------------------------------------------------------
Subject: mlock-mlocked-pages-are-unevictable-fix
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Fix this patch for pagemap-pass-mm-into-pagewalkers.patch.
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Cc: Nick Piggin <npiggin@xxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx>
Cc: Matt Mackall <mpm@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mlock.c | 25 +++++++++++++------------
1 file changed, 13 insertions(+), 12 deletions(-)
diff -puN mm/mlock.c~mlock-mlocked-pages-are-unevictable-fix mm/mlock.c
--- a/mm/mlock.c~mlock-mlocked-pages-are-unevictable-fix
+++ a/mm/mlock.c
@@ -202,9 +202,9 @@ struct munlock_page_walk {
* munlock normal pages for present ptes
*/
static int __munlock_pte_handler(pte_t *ptep, unsigned long addr,
- unsigned long end, void *private)
+ unsigned long end, struct mm_walk *walk)
{
- struct munlock_page_walk *mpw = private;
+ struct munlock_page_walk *mpw = walk->private;
swp_entry_t entry;
struct page *page;
pte_t pte;
@@ -245,18 +245,14 @@ out:
* Save pmd for pte handler for waiting on migration entries
*/
static int __munlock_pmd_handler(pmd_t *pmd, unsigned long addr,
- unsigned long end, void *private)
+ unsigned long end, struct mm_walk *walk)
{
- struct munlock_page_walk *mpw = private;
+ struct munlock_page_walk *mpw = walk->private;
mpw->pmd = pmd;
return 0;
}
-static struct mm_walk munlock_page_walk = {
- .pmd_entry = __munlock_pmd_handler,
- .pte_entry = __munlock_pte_handler,
-};
/*
* munlock a range of pages in the vma using standard page table walk.
@@ -266,8 +262,14 @@ static struct mm_walk munlock_page_walk
static void __munlock_vma_pages_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
- struct mm_struct *mm = vma->vm_mm;
- struct munlock_page_walk mpw;
+ struct munlock_page_walk mpw = {
+ .vma = vma,
+ };
+ struct mm_walk munlock_page_walk = {
+ .pmd_entry = __munlock_pmd_handler,
+ .pte_entry = __munlock_pte_handler,
+ .private = &mpw,
+ };
VM_BUG_ON(start & ~PAGE_MASK || end & ~PAGE_MASK);
VM_BUG_ON(!rwsem_is_locked(&vma->vm_mm->mmap_sem));
@@ -275,8 +277,7 @@ static void __munlock_vma_pages_range(st
VM_BUG_ON(end > vma->vm_end);
lru_add_drain_all(); /* push cached pages to LRU */
- mpw.vma = vma;
- walk_page_range(mm, start, end, &munlock_page_walk, &mpw);
+ walk_page_range(start, end, &munlock_page_walk);
lru_add_drain_all(); /* to update stats */
}
_
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