diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 23efaa2c42e4..97f433fb4b5e 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -518,6 +518,10 @@ struct vm_area_struct *vm_area_dup(struct vm_area_struct *orig) vma_numab_state_init(new); dup_anon_vma_name(orig, new); + /* track_pfn_copy() will later take care of copying internal state. */ + if (unlikely(new->vm_flags & VM_PFNMAP)) + untrack_pfn_clear(new); + return new; } |