[PATCH v2 6/9] namespace.c: Don't reinvent the wheel but use existing llist API

[Byungchul Park]

Although llist provides proper APIs, they are not used. Make them used.

Signed-off-by: Byungchul Park <byungchul.p...@lge.com>
---
 fs/namespace.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index b5b1259..5cb2229 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1082,12 +1082,10 @@ static void __cleanup_mnt(struct rcu_head *head)
 static void delayed_mntput(struct work_struct *unused)
 {
        struct llist_node *node = llist_del_all(&delayed_mntput_list);
-       struct llist_node *next;
+       struct mount *m, *t;
 
-       for (; node; node = next) {
-               next = llist_next(node);
-               cleanup_mnt(llist_entry(node, struct mount, mnt_llist));
-       }
+       llist_for_each_entry_safe(m, t, node, mnt_llist)
+               cleanup_mnt(m);
 }
 static DECLARE_DELAYED_WORK(delayed_mntput_work, delayed_mntput);
 
@@ -1615,7 +1613,7 @@ void __detach_mounts(struct dentry *dentry)
        namespace_unlock();
 }
 
-/* 
+/*
  * Is the caller allowed to modify his namespace?
  */
 static inline bool may_mount(void)
@@ -2159,7 +2157,7 @@ static int do_loopback(struct path *path, const char 
*old_name,
 
        err = -EINVAL;
        if (mnt_ns_loop(old_path.dentry))
-               goto out; 
+               goto out;
 
        mp = lock_mount(path);
        err = PTR_ERR(mp);
-- 
1.9.1