X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=mm%2Frmap.c;h=41ac39749ef42af4b7b6bb173372fb081f39735a;hb=6c3a158316598bfb165b8c83b168fa413d5ae2d8;hp=850165d32b7a18b19aff5bb124df24f4d4f74c79;hpb=d07b3c25327c5ae3792d0ed0c135dee4727200a1;p=linux-2.6-omap-h63xx.git

diff --git a/mm/rmap.c b/mm/rmap.c
index 850165d32b7..41ac39749ef 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -53,24 +53,6 @@
 
 struct kmem_cache *anon_vma_cachep;
 
-static inline void validate_anon_vma(struct vm_area_struct *find_vma)
-{
-#ifdef CONFIG_DEBUG_VM
-	struct anon_vma *anon_vma = find_vma->anon_vma;
-	struct vm_area_struct *vma;
-	unsigned int mapcount = 0;
-	int found = 0;
-
-	list_for_each_entry(vma, &anon_vma->head, anon_vma_node) {
-		mapcount++;
-		BUG_ON(mapcount > 100000);
-		if (vma == find_vma)
-			found = 1;
-	}
-	BUG_ON(!found);
-#endif
-}
-
 /* This must be called under the mmap_sem. */
 int anon_vma_prepare(struct vm_area_struct *vma)
 {
@@ -121,10 +103,8 @@ void __anon_vma_link(struct vm_area_struct *vma)
 {
 	struct anon_vma *anon_vma = vma->anon_vma;
 
-	if (anon_vma) {
+	if (anon_vma)
 		list_add_tail(&vma->anon_vma_node, &anon_vma->head);
-		validate_anon_vma(vma);
-	}
 }
 
 void anon_vma_link(struct vm_area_struct *vma)
@@ -134,7 +114,6 @@ void anon_vma_link(struct vm_area_struct *vma)
 	if (anon_vma) {
 		spin_lock(&anon_vma->lock);
 		list_add_tail(&vma->anon_vma_node, &anon_vma->head);
-		validate_anon_vma(vma);
 		spin_unlock(&anon_vma->lock);
 	}
 }
@@ -148,7 +127,6 @@ void anon_vma_unlink(struct vm_area_struct *vma)
 		return;
 
 	spin_lock(&anon_vma->lock);
-	validate_anon_vma(vma);
 	list_del(&vma->anon_vma_node);
 
 	/* We must garbage collect the anon_vma if it's empty */
@@ -171,7 +149,7 @@ static void anon_vma_ctor(void *data, struct kmem_cache *cachep,
 void __init anon_vma_init(void)
 {
 	anon_vma_cachep = kmem_cache_create("anon_vma", sizeof(struct anon_vma),
-			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor, NULL);
+			0, SLAB_DESTROY_BY_RCU|SLAB_PANIC, anon_vma_ctor);
 }
 
 /*
@@ -643,8 +621,10 @@ void page_remove_rmap(struct page *page, struct vm_area_struct *vma)
 			printk (KERN_EMERG "  page->count = %x\n", page_count(page));
 			printk (KERN_EMERG "  page->mapping = %p\n", page->mapping);
 			print_symbol (KERN_EMERG "  vma->vm_ops = %s\n", (unsigned long)vma->vm_ops);
-			if (vma->vm_ops)
+			if (vma->vm_ops) {
 				print_symbol (KERN_EMERG "  vma->vm_ops->nopage = %s\n", (unsigned long)vma->vm_ops->nopage);
+				print_symbol (KERN_EMERG "  vma->vm_ops->fault = %s\n", (unsigned long)vma->vm_ops->fault);
+			}
 			if (vma->vm_file && vma->vm_file->f_op)
 				print_symbol (KERN_EMERG "  vma->vm_file->f_op->mmap = %s\n", (unsigned long)vma->vm_file->f_op->mmap);
 			BUG();