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>
diff --git a/fs/namespace.c b/fs/namespace.c
index a830e14..4fb1691 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1961,9 +1961,9 @@
struct vfsmount *mnt;
struct dentry *dentry = path->dentry;
retry:
- mutex_lock(&dentry->d_inode->i_mutex);
+ inode_lock(dentry->d_inode);
if (unlikely(cant_mount(dentry))) {
- mutex_unlock(&dentry->d_inode->i_mutex);
+ inode_unlock(dentry->d_inode);
return ERR_PTR(-ENOENT);
}
namespace_lock();
@@ -1974,13 +1974,13 @@
mp = new_mountpoint(dentry);
if (IS_ERR(mp)) {
namespace_unlock();
- mutex_unlock(&dentry->d_inode->i_mutex);
+ inode_unlock(dentry->d_inode);
return mp;
}
return mp;
}
namespace_unlock();
- mutex_unlock(&path->dentry->d_inode->i_mutex);
+ inode_unlock(path->dentry->d_inode);
path_put(path);
path->mnt = mnt;
dentry = path->dentry = dget(mnt->mnt_root);
@@ -1992,7 +1992,7 @@
struct dentry *dentry = where->m_dentry;
put_mountpoint(where);
namespace_unlock();
- mutex_unlock(&dentry->d_inode->i_mutex);
+ inode_unlock(dentry->d_inode);
}
static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)