mm: don't pointlessly use BUG_ON() for sanity check

[mirror_ubuntu-artful-kernel.git] / mm / vmacache.c

diff --git a/mm/vmacache.c b/mm/vmacache.c
index d4224b397c0e4e4492fa135c3c5ee9b224872c07..1037a3bab50529f84c9d81c383df07dbfbbda081 100644 (file)
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -81,10 +81,12 @@ struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr)
        for (i = 0; i < VMACACHE_SIZE; i++) {
                struct vm_area_struct *vma = current->vmacache[i];
 
-               if (vma && vma->vm_start <= addr && vma->vm_end > addr) {
-                       BUG_ON(vma->vm_mm != mm);
+               if (!vma)
+                       continue;
+               if (WARN_ON_ONCE(vma->vm_mm != mm))
+                       break;
+               if (vma->vm_start <= addr && vma->vm_end > addr)
                        return vma;
-               }
        }
 
        return NULL;