diff options
Diffstat (limited to 'drivers/md/kcopyd.h')
| -rw-r--r-- | drivers/md/kcopyd.h | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/drivers/md/kcopyd.h b/drivers/md/kcopyd.h index 588f05d..d305784 100644 --- a/drivers/md/kcopyd.h +++ b/drivers/md/kcopyd.h @@ -1,29 +1,33 @@ /* - * Copyright (C) 2001 Sistina Software + * Copyright (C) 2001 - 2003 Sistina Software + * Copyright (C) 2004 - 2008 Red Hat, Inc. All rights reserved. * - * This file is released under the GPL. + * kcopyd provides a simple interface for copying an area of one + * block-device to one or more other block-devices, either synchronous + * or with an asynchronous completion notification. * - * Kcopyd provides a simple interface for copying an area of one - * block-device to one or more other block-devices, with an asynchronous - * completion notification. + * This file is released under the GPL. */ -#ifndef DM_KCOPYD_H -#define DM_KCOPYD_H +#ifndef _LINUX_DM_KCOPYD_H +#define _LINUX_DM_KCOPYD_H + +#ifdef __KERNEL__ #include "dm-io.h" /* FIXME: make this configurable */ -#define KCOPYD_MAX_REGIONS 8 +#define DM_KCOPYD_MAX_REGIONS 8 -#define KCOPYD_IGNORE_ERROR 1 +#define DM_KCOPYD_IGNORE_ERROR 1 /* - * To use kcopyd you must first create a kcopyd client object. + * To use kcopyd you must first create a dm_kcopyd_client object. */ -struct kcopyd_client; -int kcopyd_client_create(unsigned int num_pages, struct kcopyd_client **result); -void kcopyd_client_destroy(struct kcopyd_client *kc); +struct dm_kcopyd_client; +int dm_kcopyd_client_create(unsigned num_pages, + struct dm_kcopyd_client **result); +void dm_kcopyd_client_destroy(struct dm_kcopyd_client *kc); /* * Submit a copy job to kcopyd. This is built on top of the @@ -32,11 +36,12 @@ void kcopyd_client_destroy(struct kcopyd_client *kc); * read_err is a boolean, * write_err is a bitset, with 1 bit for each destination region */ -typedef void (*kcopyd_notify_fn)(int read_err, unsigned long write_err, - void *context); +typedef void (*dm_kcopyd_notify_fn)(int read_err, unsigned long write_err, + void *context); -int kcopyd_copy(struct kcopyd_client *kc, struct dm_io_region *from, - unsigned num_dests, struct dm_io_region *dests, - unsigned int flags, kcopyd_notify_fn fn, void *context); +int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, + unsigned num_dests, struct dm_io_region *dests, + unsigned flags, dm_kcopyd_notify_fn fn, void *context); -#endif +#endif /* __KERNEL__ */ +#endif /* _LINUX_DM_KCOPYD_H */ |