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>

3 files changed, 4 insertions, 7 deletions

diff --git a/security/capability.c b/security/capability.c
index 8168e3ecd5b..4aeb699da1b 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -268,8 +268,7 @@ static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
         return 0;
 }
 
-static int cap_path_truncate(struct path *path, loff_t length,
-                             unsigned int time_attrs)
+static int cap_path_truncate(struct path *path)
 {
         return 0;
 }
diff --git a/security/security.c b/security/security.c
index 351942a4ca0..e8c87b8601b 100644
--- a/security/security.c
+++ b/security/security.c
@@ -417,12 +417,11 @@ int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
                                          new_dentry);
 }
 
-int security_path_truncate(struct path *path, loff_t length,
-                           unsigned int time_attrs)
+int security_path_truncate(struct path *path)
 {
         if (unlikely(IS_PRIVATE(path->dentry->d_inode)))
                 return 0;
-        return security_ops->path_truncate(path, length, time_attrs);
+        return security_ops->path_truncate(path);
 }
 
 int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 57d442e7339..7be732cadd4 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -93,8 +93,7 @@ static int tomoyo_bprm_check_security(struct linux_binprm *bprm)
         return tomoyo_check_open_permission(domain, &bprm->file->f_path, O_RDONLY);
 }
 
-static int tomoyo_path_truncate(struct path *path, loff_t length,
-                                unsigned int time_attrs)
+static int tomoyo_path_truncate(struct path *path)
 {
         return tomoyo_path_perm(TOMOYO_TYPE_TRUNCATE, path);
 }