diff options
Diffstat (limited to 'fs/proc/task_mmu.c')
| -rw-r--r-- | fs/proc/task_mmu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index a36db4ad140b..f5ca96524f5f 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -806,6 +806,9 @@ static int clear_refs_test_walk(unsigned long start, unsigned long end, struct clear_refs_private *cp = walk->private; struct vm_area_struct *vma = walk->vma; + if (vma->vm_flags & VM_PFNMAP) + return 1; + /* * Writing 1 to /proc/pid/clear_refs affects all pages. * Writing 2 to /proc/pid/clear_refs only affects anonymous pages. |