LSM: Remove unused arguments from security_path_truncate().

When commit be6d3e56a6b9b3a4ee44a0685e39e595073c6f0d "introduce new LSM hooks
where vfsmount is available." was proposed, regarding security_path_truncate(),
only "struct file *" argument (which AppArmor wanted to use) was removed.
But length and time_attrs arguments are not used by TOMOYO nor AppArmor.
Thus, let's remove these arguments.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 3 insertions, 8 deletions

diff --git a/include/linux/security.h b/include/linux/security.h
index 0c8819170463..723a93df756a 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -470,8 +470,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  * @path_truncate:
  *      Check permission before truncating a file.
  *      @path contains the path structure for the file.
- *      @length is the new length of the file.
- *      @time_attrs is the flags passed to do_truncate().
  *      Return 0 if permission is granted.
  * @inode_getattr:
  *      Check permission before obtaining file attributes.
@@ -1412,8 +1410,7 @@ struct security_operations {
         int (*path_rmdir) (struct path *dir, struct dentry *dentry);
         int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
                            unsigned int dev);
-        int (*path_truncate) (struct path *path, loff_t length,
-                              unsigned int time_attrs);
+        int (*path_truncate) (struct path *path);
         int (*path_symlink) (struct path *dir, struct dentry *dentry,
                              const char *old_name);
         int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
@@ -2806,8 +2803,7 @@ int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
 int security_path_rmdir(struct path *dir, struct dentry *dentry);
 int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
                         unsigned int dev);
-int security_path_truncate(struct path *path, loff_t length,
-                           unsigned int time_attrs);
+int security_path_truncate(struct path *path);
 int security_path_symlink(struct path *dir, struct dentry *dentry,
                           const char *old_name);
 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
@@ -2841,8 +2837,7 @@ static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
         return 0;
 }
 
-static inline int security_path_truncate(struct path *path, loff_t length,
-                                         unsigned int time_attrs)
+static inline int security_path_truncate(struct path *path)
 {
         return 0;
 }