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, 6 insertions, 6 deletions

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index c35ffdc12bba..1f107fd51328 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -255,7 +255,7 @@ static int mknod_ptmx(struct super_block *sb)
         if (!uid_valid(root_uid) || !gid_valid(root_gid))
                 return -EINVAL;
 
-        mutex_lock(&d_inode(root)->i_mutex);
+        inode_lock(d_inode(root));
 
         /* If we have already created ptmx node, return */
         if (fsi->ptmx_dentry) {
@@ -292,7 +292,7 @@ static int mknod_ptmx(struct super_block *sb)
         fsi->ptmx_dentry = dentry;
         rc = 0;
 out:
-        mutex_unlock(&d_inode(root)->i_mutex);
+        inode_unlock(d_inode(root));
         return rc;
 }
 
@@ -615,7 +615,7 @@ struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
 
         sprintf(s, "%d", index);
 
-        mutex_lock(&d_inode(root)->i_mutex);
+        inode_lock(d_inode(root));
 
         dentry = d_alloc_name(root, s);
         if (dentry) {
@@ -626,7 +626,7 @@ struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
                 inode = ERR_PTR(-ENOMEM);
         }
 
-        mutex_unlock(&d_inode(root)->i_mutex);
+        inode_unlock(d_inode(root));
 
         return inode;
 }
@@ -671,7 +671,7 @@ void devpts_pty_kill(struct inode *inode)
 
         BUG_ON(inode->i_rdev == MKDEV(TTYAUX_MAJOR, PTMX_MINOR));
 
-        mutex_lock(&d_inode(root)->i_mutex);
+        inode_lock(d_inode(root));
 
         dentry = d_find_alias(inode);
 
@@ -680,7 +680,7 @@ void devpts_pty_kill(struct inode *inode)
         dput(dentry);   /* d_alloc_name() in devpts_pty_new() */
         dput(dentry);           /* d_find_alias above */
 
-        mutex_unlock(&d_inode(root)->i_mutex);
+        inode_unlock(d_inode(root));
 }
 
 static int __init init_devpts_fs(void)