x86/mm/pat: Add untrack_pfn_moved for mremap

[cascardo/linux.git] / mm / mremap.c

diff --git a/mm/mremap.c b/mm/mremap.c
index c25bc62..de824e7 100644 (file)
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -319,6 +319,10 @@ static unsigned long move_vma(struct vm_area_struct *vma,
        hiwater_vm = mm->hiwater_vm;
        vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
 
+       /* Tell pfnmap has moved from this vma */
+       if (unlikely(vma->vm_flags & VM_PFNMAP))
+               untrack_pfn_moved(vma);
+
        if (do_munmap(mm, old_addr, old_len) < 0) {
                /* OOM: unable to split vma, just get accounts right */
                vm_unacct_memory(excess >> PAGE_SHIFT);