X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fnamespace.h;h=3abc8e3b4879a5eac2dd54374f0fb9b37ca9f3a7;hb=34a75f0025b9cf803b6a88db032e6ad6950c9313;hp=8728b3030c4726c5723f0ea3d3f448f836ea542e;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/include/linux/namespace.h b/include/linux/namespace.h
index 8728b3030..3abc8e3b4 100644
--- a/include/linux/namespace.h
+++ b/include/linux/namespace.h
@@ -9,17 +9,18 @@ struct namespace {
 	atomic_t		count;
 	struct vfsmount *	root;
 	struct list_head	list;
-	struct rw_semaphore	sem;
+	wait_queue_head_t poll;
+	int event;
 };
 
-extern void umount_tree(struct vfsmount *);
-extern void umount_unused(struct vfsmount *, struct fs_struct *);
 extern int copy_namespace(int, struct task_struct *);
 extern void __put_namespace(struct namespace *namespace);
+extern struct namespace *dup_namespace(struct task_struct *, struct fs_struct *);
 
 static inline void put_namespace(struct namespace *namespace)
 {
-	if (atomic_dec_and_test(&namespace->count))
+	if (atomic_dec_and_lock(&namespace->count, &vfsmount_lock))
+		/* releases vfsmount_lock */
 		__put_namespace(namespace);
 }