locks: add a new "lm_owner_key" lock operation

[linux-2.6-block.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index fab064a3b65f7f1dc6ab013134d4ef65d0b1995e..a137a73fc1fe1aa826c6602df09daf886ef529e6 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -908,6 +908,7 @@ struct file_lock_operations {
 
 struct lock_manager_operations {
        int (*lm_compare_owner)(struct file_lock *, struct file_lock *);
+       unsigned long (*lm_owner_key)(struct file_lock *);
        void (*lm_notify)(struct file_lock *);  /* unblock callback */
        int (*lm_grant)(struct file_lock *, struct file_lock *, int);
        void (*lm_break)(struct file_lock *);