In next patch the clear-refs-type will be required in clear_refs_pte_range
funciton, so prepare the walk->private to carry this info.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 67c2586..c59a148 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -695,10 +695,15 @@ enum clear_refs_types {
CLEAR_REFS_LAST,
};
+struct clear_refs_private {
+ struct vm_area_struct *vma;
+};
+
static int clear_refs_pte_range(pmd_t *pmd, unsigned long addr,
unsigned long end, struct mm_walk *walk)
{
- struct vm_area_struct *vma = walk->private;
+ struct clear_refs_private *cp = walk->private;
+ struct vm_area_struct *vma = cp->vma;
pte_t *pte, ptent;
spinlock_t *ptl;
struct page *page;
@@ -751,13 +756,16 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf,
return -ESRCH;
mm = get_task_mm(task);
if (mm) {
+ struct clear_refs_private cp = {
+ };
struct mm_walk clear_refs_walk = {
.pmd_entry = clear_refs_pte_range,
.mm = mm,
+ .private = &cp,
};
down_read(&mm->mmap_sem);
for (vma = mm->mmap; vma; vma = vma->vm_next) {
- clear_refs_walk.private = vma;
+ cp.vma = vma;
if (is_vm_hugetlb_page(vma))
continue;
/*
--
1.7.6.5
--
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