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Diffstat (limited to 'mm')
-rw-r--r--mm/hugetlb.c17
-rw-r--r--mm/memory.c6
-rw-r--r--mm/vmscan.c2
3 files changed, 14 insertions, 11 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a56e6f3ce97..d0351e31f47 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1985,7 +1985,7 @@ static struct page *hugetlbfs_pagecache_page(struct hstate *h,
}
static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep, int write_access)
+ unsigned long address, pte_t *ptep, unsigned int flags)
{
struct hstate *h = hstate_vma(vma);
int ret = VM_FAULT_SIGBUS;
@@ -2053,7 +2053,7 @@ retry:
* any allocations necessary to record that reservation occur outside
* the spinlock.
*/
- if (write_access && !(vma->vm_flags & VM_SHARED))
+ if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED))
if (vma_needs_reservation(h, vma, address) < 0) {
ret = VM_FAULT_OOM;
goto backout_unlocked;
@@ -2072,7 +2072,7 @@ retry:
&& (vma->vm_flags & VM_SHARED)));
set_huge_pte_at(mm, address, ptep, new_pte);
- if (write_access && !(vma->vm_flags & VM_SHARED)) {
+ if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
/* Optimization, do the COW without a second fault */
ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
}
@@ -2091,7 +2091,7 @@ backout_unlocked:
}
int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
- unsigned long address, int write_access)
+ unsigned long address, unsigned int flags)
{
pte_t *ptep;
pte_t entry;
@@ -2112,7 +2112,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
mutex_lock(&hugetlb_instantiation_mutex);
entry = huge_ptep_get(ptep);
if (huge_pte_none(entry)) {
- ret = hugetlb_no_page(mm, vma, address, ptep, write_access);
+ ret = hugetlb_no_page(mm, vma, address, ptep, flags);
goto out_mutex;
}
@@ -2126,7 +2126,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
* page now as it is used to determine if a reservation has been
* consumed.
*/
- if (write_access && !pte_write(entry)) {
+ if ((flags & FAULT_FLAG_WRITE) && !pte_write(entry)) {
if (vma_needs_reservation(h, vma, address) < 0) {
ret = VM_FAULT_OOM;
goto out_mutex;
@@ -2143,7 +2143,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
goto out_page_table_lock;
- if (write_access) {
+ if (flags & FAULT_FLAG_WRITE) {
if (!pte_write(entry)) {
ret = hugetlb_cow(mm, vma, address, ptep, entry,
pagecache_page);
@@ -2152,7 +2152,8 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
entry = pte_mkdirty(entry);
}
entry = pte_mkyoung(entry);
- if (huge_ptep_set_access_flags(vma, address, ptep, entry, write_access))
+ if (huge_ptep_set_access_flags(vma, address, ptep, entry,
+ flags & FAULT_FLAG_WRITE))
update_mmu_cache(vma, address, entry);
out_page_table_lock:
diff --git a/mm/memory.c b/mm/memory.c
index 98bcb90d595..50da9511aa7 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1311,8 +1311,10 @@ int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
while (!(page = follow_page(vma, start, foll_flags))) {
int ret;
- /* FOLL_WRITE matches FAULT_FLAG_WRITE! */
- ret = handle_mm_fault(mm, vma, start, foll_flags & FOLL_WRITE);
+ ret = handle_mm_fault(mm, vma, start,
+ (foll_flags & FOLL_WRITE) ?
+ FAULT_FLAG_WRITE : 0);
+
if (ret & VM_FAULT_ERROR) {
if (ret & VM_FAULT_OOM)
return i ? i : -ENOMEM;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e8fa2d9eb21..54155268dfc 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -932,7 +932,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
continue;
if (__isolate_lru_page(cursor_page, mode, file) == 0) {
list_move(&cursor_page->lru, dst);
- mem_cgroup_del_lru(page);
+ mem_cgroup_del_lru(cursor_page);
nr_taken++;
scan++;
}