wrappers for ->i_mutex access

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c
index 9eacd59e0360..e58a31e8fb2a 100644
--- a/fs/proc/thread_self.c
+++ b/fs/proc/thread_self.c
@@ -52,7 +52,7 @@ int proc_setup_thread_self(struct super_block *s)
         struct pid_namespace *ns = s->s_fs_info;
         struct dentry *thread_self;
 
-        mutex_lock(&root_inode->i_mutex);
+        inode_lock(root_inode);
         thread_self = d_alloc_name(s->s_root, "thread-self");
         if (thread_self) {
                 struct inode *inode = new_inode_pseudo(s);
@@ -71,7 +71,7 @@ int proc_setup_thread_self(struct super_block *s)
         } else {
                 thread_self = ERR_PTR(-ENOMEM);
         }
-        mutex_unlock(&root_inode->i_mutex);
+        inode_unlock(root_inode);
         if (IS_ERR(thread_self)) {
                 pr_err("proc_fill_super: can't allocate /proc/thread_self\n");
                 return PTR_ERR(thread_self);