From: tonyj@suse.de Subject: Export namespace semaphore Patch-mainline: no Export global namespace_sem (this used to be a per namespace semaphore). Alas, this isn't going to win _any_ points for style. Patch is not in mainline -- pending AppArmor code submission to lkml --- fs/namespace.c | 3 ++- include/linux/namespace.h | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) Index: linux-2.6.17.9/fs/namespace.c =================================================================== --- linux-2.6.17.9.orig/fs/namespace.c +++ linux-2.6.17.9/fs/namespace.c @@ -46,7 +46,8 @@ static int event; static struct list_head *mount_hashtable __read_mostly; static int hash_mask __read_mostly, hash_bits __read_mostly; static kmem_cache_t *mnt_cache __read_mostly; -static struct rw_semaphore namespace_sem; +struct rw_semaphore namespace_sem; +EXPORT_SYMBOL_GPL(namespace_sem); /* /sys/fs */ decl_subsys(fs, NULL, NULL); Index: linux-2.6.17.9/include/linux/namespace.h =================================================================== --- linux-2.6.17.9.orig/include/linux/namespace.h +++ linux-2.6.17.9/include/linux/namespace.h @@ -5,6 +5,9 @@ #include #include +/* exported for AppArmor (SubDomain) */ +extern struct rw_semaphore namespace_sem; + struct namespace { atomic_t count; struct vfsmount * root;