new helper: file_inode(file)

[linux-2.6-block.git] / kernel / cgroup.c

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 4855892798fdfd6aeee695a4fc1d2a70b96662eb..4fe52b3b6ef6dd8393b7afc74a2315746f703722 100644 (file)
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -2637,7 +2637,7 @@ static struct dentry *cgroup_lookup(struct inode *dir, struct dentry *dentry, un
  */
 static inline struct cftype *__file_cft(struct file *file)
 {
-       if (file->f_dentry->d_inode->i_fop != &cgroup_file_operations)
+       if (file_inode(file)->i_fop != &cgroup_file_operations)
                return ERR_PTR(-EINVAL);
        return __d_cft(file->f_dentry);
 }
@@ -3852,7 +3852,7 @@ static int cgroup_write_event_control(struct cgroup *cgrp, struct cftype *cft,
 
        /* the process need read permission on control file */
        /* AV: shouldn't we check that it's been opened for read instead? */
-       ret = inode_permission(cfile->f_path.dentry->d_inode, MAY_READ);
+       ret = inode_permission(file_inode(cfile), MAY_READ);
        if (ret < 0)
                goto fail;
 
@@ -5441,7 +5441,7 @@ struct cgroup_subsys_state *cgroup_css_from_dir(struct file *f, int id)
        struct inode *inode;
        struct cgroup_subsys_state *css;
 
-       inode = f->f_dentry->d_inode;
+       inode = file_inode(f);
        /* check in cgroup filesystem dir */
        if (inode->i_op != &cgroup_dir_inode_operations)
                return ERR_PTR(-EBADF);