The patch titled
maps: remove vma from args in the page walker
has been added to the -mm tree. Its filename is
maps2-remove-vma-from-args-in-the-page-walker.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: maps: remove vma from args in the page walker
From: Matt Mackall <mpm@xxxxxxxxxxx>
This makes the walker more generic.
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
diff -puN fs/proc/task_mmu.c~maps2-remove-vma-from-args-in-the-page-walker fs/proc/task_mmu.c
--- a/fs/proc/task_mmu.c~maps2-remove-vma-from-args-in-the-page-walker
+++ a/fs/proc/task_mmu.c
@@ -309,25 +309,26 @@ static void walk_pud_range(pgd_t *pgd, u
}
/*
- * walk_page_range - walk the page tables of a VMA with a callback
- * @vma - VMA to walk
+ * walk_page_range - walk a memory map's page tables with a callback
+ * @mm - memory map to walk
+ * @addr - starting address
+ * @end - ending address
* @action - callback invoked for every bottom-level (PTE) page table
* @private - private data passed to the callback function
*
* Recursively walk the page table for the memory area in a VMA, calling
* a callback for every bottom-level (PTE) page table.
*/
-static void walk_page_range(struct vm_area_struct *vma,
+static void walk_page_range(struct mm_struct *mm,
+ unsigned long addr, unsigned long end,
void (*action)(pmd_t *, unsigned long,
unsigned long, void *),
void *private)
{
- unsigned long addr = vma->vm_start;
- unsigned long end = vma->vm_end;
pgd_t *pgd;
unsigned long next;
- for (pgd = pgd_offset(vma->vm_mm, addr); addr != end;
+ for (pgd = pgd_offset(mm, addr); addr != end;
pgd++, addr = next) {
next = pgd_addr_end(addr, end);
if (pgd_none_or_clear_bad(pgd))
@@ -344,7 +345,8 @@ static int show_smap(struct seq_file *m,
memset(&mss, 0, sizeof mss);
mss.vma = vma;
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
- walk_page_range(vma, smaps_pte_range, &mss);
+ walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end,
+ smaps_pte_range, &mss);
return show_map_internal(m, v, &mss);
}
@@ -355,7 +357,8 @@ void clear_refs_smap(struct mm_struct *m
down_read(&mm->mmap_sem);
for (vma = mm->mmap; vma; vma = vma->vm_next)
if (vma->vm_mm && !is_vm_hugetlb_page(vma))
- walk_page_range(vma, clear_refs_pte_range, vma);
+ walk_page_range(vma->vm_mm, vma->vm_start, vma->vm_end,
+ clear_refs_pte_range, vma);
flush_tlb_mm(mm);
up_read(&mm->mmap_sem);
}
_
Patches currently in -mm which might be from mpm@xxxxxxxxxxx are
slab-introduce-krealloc.patch
slab-introduce-krealloc-fix.patch
smaps-add-clear_refs-file-to-clear-reference-cleanup.patch
maps2-uninline-some-functions-in-the-page-walker.patch
maps2-eliminate-the-pmd_walker-struct-in-the-page-walker.patch
maps2-remove-vma-from-args-in-the-page-walker.patch
maps2-propagate-errors-from-callback-in-page-walker.patch
maps2-add-callbacks-for-each-level-to-page-walker.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-simplify-interdependence-of-proc-pid-maps-and-smaps.patch
maps2-move-clear_refs-code-to-task_mmuc.patch
maps2-regroup-task_mmu-by-interface.patch
maps2-make-proc-pid-smaps-optional-under-config_embedded.patch
maps2-make-proc-pid-clear_refs-option-under-config_embedded.patch
maps2-add-proc-pid-pagemap-interface.patch
maps2-add-proc-kpagemap-interface.patch
-
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