[PATCH] nfs4 lease: export remove_lease

Export remove_lease(), an interface to time_out_leases() with an
fl_break_time in the past.  needed by nfsd
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/locks.c

@@ -1090,6 +1090,26 @@ static void time_out_leases(struct inode *inode)
 	}
 }
 
+ /**
+*	remove_lease - let time_out_leases remove the lease.
+*	@@file_lock: the lease to remove
+*/
+void remove_lease(struct file_lock *fl)
+{
+	if (!IS_LEASE(fl))
+		return;
+
+	lock_kernel();
+
+	fl->fl_type = F_UNLCK | F_INPROGRESS;
+	fl->fl_break_time = jiffies - 10;
+	time_out_leases(fl->fl_file->f_dentry->d_inode);
+
+	unlock_kernel();
+}
+
+EXPORT_SYMBOL(remove_lease);
+
 /**
  *	__break_lease	-	revoke all outstanding leases on file
  *	@inode: the inode of the file to return

include/linux/fs.h

@@ -702,6 +702,7 @@ extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
 extern int __break_lease(struct inode *inode, unsigned int flags);
 extern void lease_get_mtime(struct inode *, struct timespec *time);
 extern int setlease(struct file *, long, struct file_lock **);
+extern void remove_lease(struct file_lock *);
 extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
 extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
 extern void steal_locks(fl_owner_t from);