security: remove dead hook sb_post_remount

Unused hook.  Remove.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

4 files changed, 0 insertions, 26 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 6c9ca7358aad..f87f56e348fd 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1573,8 +1573,6 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
         }
         up_write(&sb->s_umount);
         if (!err) {
-                security_sb_post_remount(path->mnt, flags, data);
-
                 spin_lock(&vfsmount_lock);
                 touch_mnt_namespace(path->mnt->mnt_ns);
                 spin_unlock(&vfsmount_lock);
diff --git a/include/linux/security.h b/include/linux/security.h
index b206795c09f7..338617a50fa3 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -272,12 +272,6 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  *      @mnt contains the mounted file system.
  *      @flags contains the unmount flags, e.g. MNT_FORCE.
  *      Return 0 if permission is granted.
- * @sb_post_remount:
- *      Update the security module's state when a filesystem is remounted.
- *      This hook is only called if the remount was successful.
- *      @mnt contains the mounted file system.
- *      @flags contains the new filesystem flags.
- *      @data contains the filesystem-specific data.
  * @sb_post_addmount:
  *      Update the security module's state when a filesystem is mounted.
  *      This hook is called any time a mount is successfully grafetd to
@@ -1468,8 +1462,6 @@ struct security_operations {
         int (*sb_mount) (char *dev_name, struct path *path,
                          char *type, unsigned long flags, void *data);
         int (*sb_umount) (struct vfsmount *mnt, int flags);
-        void (*sb_post_remount) (struct vfsmount *mnt,
-                                 unsigned long flags, void *data);
         void (*sb_post_addmount) (struct vfsmount *mnt,
                                   struct path *mountpoint);
         int (*sb_pivotroot) (struct path *old_path,
@@ -1764,7 +1756,6 @@ int security_sb_statfs(struct dentry *dentry);
 int security_sb_mount(char *dev_name, struct path *path,
                       char *type, unsigned long flags, void *data);
 int security_sb_umount(struct vfsmount *mnt, int flags);
-void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data);
 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint);
 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
 void security_sb_post_pivotroot(struct path *old_path, struct path *new_path);
@@ -2081,10 +2072,6 @@ static inline int security_sb_umount(struct vfsmount *mnt, int flags)
         return 0;
 }
 
-static inline void security_sb_post_remount(struct vfsmount *mnt,
-                                             unsigned long flags, void *data)
-{ }
-
 static inline void security_sb_post_addmount(struct vfsmount *mnt,
                                              struct path *mountpoint)
 { }
diff --git a/security/capability.c b/security/capability.c
index 476d43030906..26fc92caa339 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -85,11 +85,6 @@ static int cap_sb_umount(struct vfsmount *mnt, int flags)
         return 0;
 }
 
-static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags,
-                                void *data)
-{
-}
-
 static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path)
 {
 }
@@ -929,7 +924,6 @@ void security_fixup_ops(struct security_operations *ops)
         set_to_cap_if_null(ops, sb_statfs);
         set_to_cap_if_null(ops, sb_mount);
         set_to_cap_if_null(ops, sb_umount);
-        set_to_cap_if_null(ops, sb_post_remount);
         set_to_cap_if_null(ops, sb_post_addmount);
         set_to_cap_if_null(ops, sb_pivotroot);
         set_to_cap_if_null(ops, sb_post_pivotroot);
diff --git a/security/security.c b/security/security.c
index c1341fbe98ca..d9538d98736b 100644
--- a/security/security.c
+++ b/security/security.c
@@ -311,11 +311,6 @@ int security_sb_umount(struct vfsmount *mnt, int flags)
         return security_ops->sb_umount(mnt, flags);
 }
 
-void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data)
-{
-        security_ops->sb_post_remount(mnt, flags, data);
-}
-
 void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint)
 {
         security_ops->sb_post_addmount(mnt, mountpoint);