SELinux: Improve read/write performance

[deliverable/linux.git] / include / linux / security.h

diff --git a/include/linux/security.h b/include/linux/security.h
index 1a15526e9f677ce6bb402234cc4d000d5c7f7ad0..928d4793c6f429736eebfc28196dc5c5ae9fc710 100644 (file)
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -504,6 +504,13 @@ struct request_sock;
  *     @file contains the file structure being received.
  *     Return 0 if permission is granted.
  *
+ * Security hook for dentry
+ *
+ * @dentry_open
+ *     Save open-time permission checking state for later use upon
+ *     file_permission, and recheck access if anything has changed
+ *     since inode_permission.
+ *
  * Security hooks for task operations.
  *
  * @task_create:
@@ -1256,6 +1263,7 @@ struct security_operations {
        int (*file_send_sigiotask) (struct task_struct * tsk,
                                    struct fown_struct * fown, int sig);
        int (*file_receive) (struct file * file);
+       int (*dentry_open)  (struct file *file);
 
        int (*task_create) (unsigned long clone_flags);
        int (*task_alloc_security) (struct task_struct * p);
@@ -1864,6 +1872,11 @@ static inline int security_file_receive (struct file *file)
        return security_ops->file_receive (file);
 }
 
+static inline int security_dentry_open (struct file *file)
+{
+       return security_ops->dentry_open (file);
+}
+
 static inline int security_task_create (unsigned long clone_flags)
 {
        return security_ops->task_create (clone_flags);
@@ -2546,6 +2559,11 @@ static inline int security_file_receive (struct file *file)
        return 0;
 }
 
+static inline int security_dentry_open (struct file *file)
+{
+       return 0;
+}
+
 static inline int security_task_create (unsigned long clone_flags)
 {
        return 0;