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Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index a54b2c49844..09e4b1be7b6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -956,6 +956,7 @@ static unsigned long unmap_page_range(struct mmu_gather *tlb,
details = NULL;
BUG_ON(addr >= end);
+ mem_cgroup_uncharge_start();
tlb_start_vma(tlb, vma);
pgd = pgd_offset(vma->vm_mm, addr);
do {
@@ -968,6 +969,7 @@ static unsigned long unmap_page_range(struct mmu_gather *tlb,
zap_work, details);
} while (pgd++, addr = next, (addr != end && *zap_work > 0));
tlb_end_vma(tlb, vma);
+ mem_cgroup_uncharge_end();
return addr;
}
@@ -2553,6 +2555,10 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
ret = VM_FAULT_MAJOR;
count_vm_event(PGMAJFAULT);
} else if (PageHWPoison(page)) {
+ /*
+ * hwpoisoned dirty swapcache pages are kept for killing
+ * owner processes (which may be unknown at hwpoison time)
+ */
ret = VM_FAULT_HWPOISON;
delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
goto out_release;