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1 /* | 1 /* |
2 * Copyright (C) 2010 The Chromium OS Authors <chromium-os-dev@chromium.org> | 2 * Copyright (C) 2010 The Chromium OS Authors <chromium-os-dev@chromium.org> |
3 * | 3 * |
4 * Device-Mapper block hash tree interface. | 4 * Device-Mapper block hash tree interface. |
5 * See Documentation/device-mapper/dm-bht.txt for details. | 5 * See Documentation/device-mapper/dm-bht.txt for details. |
6 * | 6 * |
7 * This file is released under the GPLv2. | 7 * This file is released under the GPLv2. |
8 */ | 8 */ |
9 #ifndef __LINUX_DM_BHT_H | 9 #ifndef __LINUX_DM_BHT_H |
10 #define __LINUX_DM_BHT_H | 10 #define __LINUX_DM_BHT_H |
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120 void dm_bht_set_read_cb(struct dm_bht *bht, dm_bht_callback read_cb); | 120 void dm_bht_set_read_cb(struct dm_bht *bht, dm_bht_callback read_cb); |
121 void dm_bht_set_write_cb(struct dm_bht *bht, dm_bht_callback write_cb); | 121 void dm_bht_set_write_cb(struct dm_bht *bht, dm_bht_callback write_cb); |
122 int dm_bht_set_root_hexdigest(struct dm_bht *bht, const u8 *hexdigest); | 122 int dm_bht_set_root_hexdigest(struct dm_bht *bht, const u8 *hexdigest); |
123 int dm_bht_root_hexdigest(struct dm_bht *bht, u8 *hexdigest, int available); | 123 int dm_bht_root_hexdigest(struct dm_bht *bht, u8 *hexdigest, int available); |
124 | 124 |
125 /* Functions for loading in data from disk for verification */ | 125 /* Functions for loading in data from disk for verification */ |
126 bool dm_bht_is_populated(struct dm_bht *bht, unsigned int block_index); | 126 bool dm_bht_is_populated(struct dm_bht *bht, unsigned int block_index); |
127 int dm_bht_populate(struct dm_bht *bht, void *read_cb_ctx, | 127 int dm_bht_populate(struct dm_bht *bht, void *read_cb_ctx, |
128 unsigned int block_index); | 128 unsigned int block_index); |
129 int dm_bht_verify_block(struct dm_bht *bht, unsigned int block_index, | 129 int dm_bht_verify_block(struct dm_bht *bht, unsigned int block_index, |
130 » » » const void *block); | 130 » » » struct page *pg, unsigned int offset); |
Will Drewry
2011/04/13 20:19:30
nit: Do you need #include <asm/page.h> or will mem
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131 | 131 |
132 /* Functions for creating struct dm_bhts on disk. A newly created dm_bht | 132 /* Functions for creating struct dm_bhts on disk. A newly created dm_bht |
133 * should not be directly used for verification. (It should be repopulated.) | 133 * should not be directly used for verification. (It should be repopulated.) |
134 * In addition, these functions aren't meant to be called in parallel. | 134 * In addition, these functions aren't meant to be called in parallel. |
135 */ | 135 */ |
136 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx); | 136 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx); |
137 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx); | 137 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx); |
138 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index, | 138 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index, |
139 u8 *block_data); | 139 u8 *block_data); |
140 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count, | 140 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count, |
141 struct dm_bht_entry *entry); | 141 struct dm_bht_entry *entry); |
142 void dm_bht_read_completed(struct dm_bht_entry *entry, int status); | 142 void dm_bht_read_completed(struct dm_bht_entry *entry, int status); |
143 void dm_bht_write_completed(struct dm_bht_entry *entry, int status); | 143 void dm_bht_write_completed(struct dm_bht_entry *entry, int status); |
144 #endif /* __LINUX_DM_BHT_H */ | 144 #endif /* __LINUX_DM_BHT_H */ |
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