mm owner: fix race between swapoff and exit
[linux-2.6/next.git] / drivers / md / dm-mpath.h
blobc198b856a452540ebb47e9718458e39b7c6113c3
1 /*
2 * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
4 * This file is released under the GPL.
6 * Multipath.
7 */
9 #ifndef DM_MPATH_H
10 #define DM_MPATH_H
12 struct dm_dev;
14 struct dm_path {
15 struct dm_dev *dev; /* Read-only */
16 unsigned is_active; /* Read-only */
18 void *pscontext; /* For path-selector use */
21 /* Callback for hwh_pg_init_fn to use when complete */
22 void dm_pg_init_complete(struct dm_path *path, unsigned err_flags);
24 #endif