dm.h (4cc96131afce3eaae7c13dff41c6ba771cf10e96) dm.h (e83068a5faafb8ca65d3b58bd1e1e3959ce1ddce)
1/*
2 * Internal header file for device mapper
3 *
4 * Copyright (C) 2001, 2002 Sistina Software
5 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
6 *
7 * This file is released under the LGPL.
8 */

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29#define DM_SUSPEND_NOFLUSH_FLAG (1 << 1)
30
31/*
32 * Status feature flags
33 */
34#define DM_STATUS_NOFLUSH_FLAG (1 << 0)
35
36/*
1/*
2 * Internal header file for device mapper
3 *
4 * Copyright (C) 2001, 2002 Sistina Software
5 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
6 *
7 * This file is released under the LGPL.
8 */

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29#define DM_SUSPEND_NOFLUSH_FLAG (1 << 1)
30
31/*
32 * Status feature flags
33 */
34#define DM_STATUS_NOFLUSH_FLAG (1 << 0)
35
36/*
37 * Type of table and mapped_device's mempool
38 */
39#define DM_TYPE_NONE 0
40#define DM_TYPE_BIO_BASED 1
41#define DM_TYPE_REQUEST_BASED 2
42#define DM_TYPE_MQ_REQUEST_BASED 3
43
44/*
45 * List of devices that a metadevice uses and should open/close.
46 */
47struct dm_dev_internal {
48 struct list_head list;
49 atomic_t count;
50 struct dm_dev *dm_dev;
51};
52

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72void dm_table_postsuspend_targets(struct dm_table *t);
73int dm_table_resume_targets(struct dm_table *t);
74int dm_table_any_congested(struct dm_table *t, int bdi_bits);
75unsigned dm_table_get_type(struct dm_table *t);
76struct target_type *dm_table_get_immutable_target_type(struct dm_table *t);
77struct dm_target *dm_table_get_immutable_target(struct dm_table *t);
78struct dm_target *dm_table_get_wildcard_target(struct dm_table *t);
79bool dm_table_request_based(struct dm_table *t);
37 * List of devices that a metadevice uses and should open/close.
38 */
39struct dm_dev_internal {
40 struct list_head list;
41 atomic_t count;
42 struct dm_dev *dm_dev;
43};
44

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64void dm_table_postsuspend_targets(struct dm_table *t);
65int dm_table_resume_targets(struct dm_table *t);
66int dm_table_any_congested(struct dm_table *t, int bdi_bits);
67unsigned dm_table_get_type(struct dm_table *t);
68struct target_type *dm_table_get_immutable_target_type(struct dm_table *t);
69struct dm_target *dm_table_get_immutable_target(struct dm_table *t);
70struct dm_target *dm_table_get_wildcard_target(struct dm_table *t);
71bool dm_table_request_based(struct dm_table *t);
80bool dm_table_mq_request_based(struct dm_table *t);
72bool dm_table_all_blk_mq_devices(struct dm_table *t);
81void dm_table_free_md_mempools(struct dm_table *t);
82struct dm_md_mempools *dm_table_get_md_mempools(struct dm_table *t);
83
84void dm_lock_md_type(struct mapped_device *md);
85void dm_unlock_md_type(struct mapped_device *md);
86void dm_set_md_type(struct mapped_device *md, unsigned type);
87unsigned dm_get_md_type(struct mapped_device *md);
88struct target_type *dm_get_immutable_target_type(struct mapped_device *md);

--- 136 unchanged lines hidden --- 		73void dm_table_free_md_mempools(struct dm_table *t);
74struct dm_md_mempools *dm_table_get_md_mempools(struct dm_table *t);
75
76void dm_lock_md_type(struct mapped_device *md);
77void dm_unlock_md_type(struct mapped_device *md);
78void dm_set_md_type(struct mapped_device *md, unsigned type);
79unsigned dm_get_md_type(struct mapped_device *md);
80struct target_type *dm_get_immutable_target_type(struct mapped_device *md);

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