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Side by Side Diff: include/linux/dm-bht.h

Issue 6250155: CHROMIUM: verity: remove stale code/comments from earlier bitmap design (Closed) Base URL: http://git.chromium.org/git/kernel.git@master
Patch Set: Created 9 years, 10 months ago
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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
11 11
12 #include <linux/compiler.h> 12 #include <linux/compiler.h>
13 #include <linux/crypto.h> 13 #include <linux/crypto.h>
14 #include <linux/mempool.h> 14 #include <linux/mempool.h>
15 #include <linux/types.h> 15 #include <linux/types.h>
16 16
17 /* To avoid allocating memory for digest tests, we just setup a 17 /* To avoid allocating memory for digest tests, we just setup a
18 * max to use for now. 18 * max to use for now.
19 */ 19 */
20 #define DM_BHT_MAX_DIGEST_SIZE 128 /* 1k hashes are unlikely for now */ 20 #define DM_BHT_MAX_DIGEST_SIZE 128 /* 1k hashes are unlikely for now */
21 #define DM_BHT_MAX_NODE_COUNT 256
22 21
23 /* UNALLOCATED, PENDING, READY, and VERIFIED are valid states. All other 22 /* UNALLOCATED, PENDING, READY, and VERIFIED are valid states. All other
24 * values are entry-related return codes. 23 * values are entry-related return codes.
25 */ 24 */
26 #define DM_BHT_ENTRY_VERIFIED 8 /* 'nodes' has been checked against parent */ 25 #define DM_BHT_ENTRY_VERIFIED 8 /* 'nodes' has been checked against parent */
27 #define DM_BHT_ENTRY_READY 4 /* 'nodes' is loaded and available */ 26 #define DM_BHT_ENTRY_READY 4 /* 'nodes' is loaded and available */
28 #define DM_BHT_ENTRY_PENDING 2 /* 'nodes' is being loaded */ 27 #define DM_BHT_ENTRY_PENDING 2 /* 'nodes' is being loaded */
29 #define DM_BHT_ENTRY_REQUESTED 1 /* non-state response indicating entry is 28 #define DM_BHT_ENTRY_REQUESTED 1 /* non-state response indicating entry is
30 * pending because of the current call 29 * pending because of the current call
31 */ 30 */
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144 */ 143 */
145 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx); 144 int dm_bht_compute(struct dm_bht *bht, void *read_cb_ctx);
146 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx); 145 int dm_bht_sync(struct dm_bht *bht, void *write_cb_ctx);
147 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index, 146 int dm_bht_store_block(struct dm_bht *bht, unsigned int block_index,
148 u8 *block_data); 147 u8 *block_data);
149 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count, 148 int dm_bht_zeroread_callback(void *ctx, sector_t start, u8 *dst, sector_t count,
150 struct dm_bht_entry *entry); 149 struct dm_bht_entry *entry);
151 void dm_bht_read_completed(struct dm_bht_entry *entry, int status); 150 void dm_bht_read_completed(struct dm_bht_entry *entry, int status);
152 void dm_bht_write_completed(struct dm_bht_entry *entry, int status); 151 void dm_bht_write_completed(struct dm_bht_entry *entry, int status);
153 #endif /* __LINUX_DM_BHT_H */ 152 #endif /* __LINUX_DM_BHT_H */
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