diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/md/dm.h')
-rw-r--r-- | ANDROID_3.4.5/drivers/md/dm.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/ANDROID_3.4.5/drivers/md/dm.h b/ANDROID_3.4.5/drivers/md/dm.h deleted file mode 100644 index b7dacd59..00000000 --- a/ANDROID_3.4.5/drivers/md/dm.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * Internal header file for device mapper - * - * Copyright (C) 2001, 2002 Sistina Software - * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. - * - * This file is released under the LGPL. - */ - -#ifndef DM_INTERNAL_H -#define DM_INTERNAL_H - -#include <linux/fs.h> -#include <linux/device-mapper.h> -#include <linux/list.h> -#include <linux/blkdev.h> -#include <linux/hdreg.h> - -/* - * Suspend feature flags - */ -#define DM_SUSPEND_LOCKFS_FLAG (1 << 0) -#define DM_SUSPEND_NOFLUSH_FLAG (1 << 1) - -/* - * Type of table and mapped_device's mempool - */ -#define DM_TYPE_NONE 0 -#define DM_TYPE_BIO_BASED 1 -#define DM_TYPE_REQUEST_BASED 2 - -/* - * List of devices that a metadevice uses and should open/close. - */ -struct dm_dev_internal { - struct list_head list; - atomic_t count; - struct dm_dev dm_dev; -}; - -struct dm_table; -struct dm_md_mempools; - -/*----------------------------------------------------------------- - * Internal table functions. - *---------------------------------------------------------------*/ -void dm_table_destroy(struct dm_table *t); -void dm_table_event_callback(struct dm_table *t, - void (*fn)(void *), void *context); -struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index); -struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector); -int dm_calculate_queue_limits(struct dm_table *table, - struct queue_limits *limits); -void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q, - struct queue_limits *limits); -struct list_head *dm_table_get_devices(struct dm_table *t); -void dm_table_presuspend_targets(struct dm_table *t); -void dm_table_postsuspend_targets(struct dm_table *t); -int dm_table_resume_targets(struct dm_table *t); -int dm_table_any_congested(struct dm_table *t, int bdi_bits); -int dm_table_any_busy_target(struct dm_table *t); -unsigned dm_table_get_type(struct dm_table *t); -struct target_type *dm_table_get_immutable_target_type(struct dm_table *t); -bool dm_table_request_based(struct dm_table *t); -bool dm_table_supports_discards(struct dm_table *t); -int dm_table_alloc_md_mempools(struct dm_table *t); -void dm_table_free_md_mempools(struct dm_table *t); -struct dm_md_mempools *dm_table_get_md_mempools(struct dm_table *t); - -int dm_queue_merge_is_compulsory(struct request_queue *q); - -void dm_lock_md_type(struct mapped_device *md); -void dm_unlock_md_type(struct mapped_device *md); -void dm_set_md_type(struct mapped_device *md, unsigned type); -unsigned dm_get_md_type(struct mapped_device *md); -struct target_type *dm_get_immutable_target_type(struct mapped_device *md); - -int dm_setup_md_queue(struct mapped_device *md); - -/* - * To check the return value from dm_table_find_target(). - */ -#define dm_target_is_valid(t) ((t)->table) - -/* - * To check whether the target type is request-based or not (bio-based). - */ -#define dm_target_request_based(t) ((t)->type->map_rq != NULL) - -/*----------------------------------------------------------------- - * A registry of target types. - *---------------------------------------------------------------*/ -int dm_target_init(void); -void dm_target_exit(void); -struct target_type *dm_get_target_type(const char *name); -void dm_put_target_type(struct target_type *tt); -int dm_target_iterate(void (*iter_func)(struct target_type *tt, - void *param), void *param); - -int dm_split_args(int *argc, char ***argvp, char *input); - -/* - * Is this mapped_device being deleted? - */ -int dm_deleting_md(struct mapped_device *md); - -/* - * Is this mapped_device suspended? - */ -int dm_suspended_md(struct mapped_device *md); - -/* - * The device-mapper can be driven through one of two interfaces; - * ioctl or filesystem, depending which patch you have applied. - */ -int dm_interface_init(void); -void dm_interface_exit(void); - -/* - * sysfs interface - */ -int dm_sysfs_init(struct mapped_device *md); -void dm_sysfs_exit(struct mapped_device *md); -struct kobject *dm_kobject(struct mapped_device *md); -struct mapped_device *dm_get_from_kobject(struct kobject *kobj); - -/* - * Targets for linear and striped mappings - */ -int dm_linear_init(void); -void dm_linear_exit(void); - -int dm_stripe_init(void); -void dm_stripe_exit(void); - -/* - * mapped_device operations - */ -void dm_destroy(struct mapped_device *md); -void dm_destroy_immediate(struct mapped_device *md); -int dm_open_count(struct mapped_device *md); -int dm_lock_for_deletion(struct mapped_device *md); - -int dm_kobject_uevent(struct mapped_device *md, enum kobject_action action, - unsigned cookie); - -int dm_io_init(void); -void dm_io_exit(void); - -int dm_kcopyd_init(void); -void dm_kcopyd_exit(void); - -/* - * Mempool operations - */ -struct dm_md_mempools *dm_alloc_md_mempools(unsigned type, unsigned integrity); -void dm_free_md_mempools(struct dm_md_mempools *pools); - -#endif |