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-rw-r--r--drivers/md/dm.h89
-rw-r--r--include/linux/device-mapper.h94
2 files changed, 93 insertions, 90 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 9a6023c9bc6b..8c03b634e62e 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -16,67 +16,6 @@
16#include <linux/blkdev.h> 16#include <linux/blkdev.h>
17#include <linux/hdreg.h> 17#include <linux/hdreg.h>
18 18
19#define DM_NAME "device-mapper"
20
21#define DMERR(f, arg...) \
22 printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
23#define DMERR_LIMIT(f, arg...) \
24 do { \
25 if (printk_ratelimit()) \
26 printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " \
27 f "\n", ## arg); \
28 } while (0)
29
30#define DMWARN(f, arg...) \
31 printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
32#define DMWARN_LIMIT(f, arg...) \
33 do { \
34 if (printk_ratelimit()) \
35 printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " \
36 f "\n", ## arg); \
37 } while (0)
38
39#define DMINFO(f, arg...) \
40 printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
41#define DMINFO_LIMIT(f, arg...) \
42 do { \
43 if (printk_ratelimit()) \
44 printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f \
45 "\n", ## arg); \
46 } while (0)
47
48#ifdef CONFIG_DM_DEBUG
49# define DMDEBUG(f, arg...) \
50 printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX " DEBUG: " f "\n", ## arg)
51# define DMDEBUG_LIMIT(f, arg...) \
52 do { \
53 if (printk_ratelimit()) \
54 printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX ": " f \
55 "\n", ## arg); \
56 } while (0)
57#else
58# define DMDEBUG(f, arg...) do {} while (0)
59# define DMDEBUG_LIMIT(f, arg...) do {} while (0)
60#endif
61
62#define DMEMIT(x...) sz += ((sz >= maxlen) ? \
63 0 : scnprintf(result + sz, maxlen - sz, x))
64
65#define SECTOR_SHIFT 9
66
67/*
68 * Definitions of return values from target end_io function.
69 */
70#define DM_ENDIO_INCOMPLETE 1
71#define DM_ENDIO_REQUEUE 2
72
73/*
74 * Definitions of return values from target map function.
75 */
76#define DM_MAPIO_SUBMITTED 0
77#define DM_MAPIO_REMAPPED 1
78#define DM_MAPIO_REQUEUE DM_ENDIO_REQUEUE
79
80/* 19/*
81 * Suspend feature flags 20 * Suspend feature flags
82 */ 21 */
@@ -136,34 +75,6 @@ static inline int array_too_big(unsigned long fixed, unsigned long obj,
136 return (num > (ULONG_MAX - fixed) / obj); 75 return (num > (ULONG_MAX - fixed) / obj);
137} 76}
138 77
139/*
140 * Ceiling(n / sz)
141 */
142#define dm_div_up(n, sz) (((n) + (sz) - 1) / (sz))
143
144#define dm_sector_div_up(n, sz) ( \
145{ \
146 sector_t _r = ((n) + (sz) - 1); \
147 sector_div(_r, (sz)); \
148 _r; \
149} \
150)
151
152/*
153 * ceiling(n / size) * size
154 */
155#define dm_round_up(n, sz) (dm_div_up((n), (sz)) * (sz))
156
157static inline sector_t to_sector(unsigned long n)
158{
159 return (n >> 9);
160}
161
162static inline unsigned long to_bytes(sector_t n)
163{
164 return (n << 9);
165}
166
167int dm_split_args(int *argc, char ***argvp, char *input); 78int dm_split_args(int *argc, char ***argvp, char *input);
168 79
169/* 80/*
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 4db23378cfb1..a68829e274fe 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -1,6 +1,6 @@
1/* 1/*
2 * Copyright (C) 2001 Sistina Software (UK) Limited. 2 * Copyright (C) 2001 Sistina Software (UK) Limited.
3 * Copyright (C) 2004 Red Hat, Inc. All rights reserved. 3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
4 * 4 *
5 * This file is released under the LGPL. 5 * This file is released under the LGPL.
6 */ 6 */
@@ -258,5 +258,97 @@ int dm_swap_table(struct mapped_device *md, struct dm_table *t);
258 */ 258 */
259int dm_create_error_table(struct dm_table **result, struct mapped_device *md); 259int dm_create_error_table(struct dm_table **result, struct mapped_device *md);
260 260
261/*-----------------------------------------------------------------
262 * Macros.
263 *---------------------------------------------------------------*/
264#define DM_NAME "device-mapper"
265
266#define DMERR(f, arg...) \
267 printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
268#define DMERR_LIMIT(f, arg...) \
269 do { \
270 if (printk_ratelimit()) \
271 printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " \
272 f "\n", ## arg); \
273 } while (0)
274
275#define DMWARN(f, arg...) \
276 printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
277#define DMWARN_LIMIT(f, arg...) \
278 do { \
279 if (printk_ratelimit()) \
280 printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " \
281 f "\n", ## arg); \
282 } while (0)
283
284#define DMINFO(f, arg...) \
285 printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
286#define DMINFO_LIMIT(f, arg...) \
287 do { \
288 if (printk_ratelimit()) \
289 printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f \
290 "\n", ## arg); \
291 } while (0)
292
293#ifdef CONFIG_DM_DEBUG
294# define DMDEBUG(f, arg...) \
295 printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX " DEBUG: " f "\n", ## arg)
296# define DMDEBUG_LIMIT(f, arg...) \
297 do { \
298 if (printk_ratelimit()) \
299 printk(KERN_DEBUG DM_NAME ": " DM_MSG_PREFIX ": " f \
300 "\n", ## arg); \
301 } while (0)
302#else
303# define DMDEBUG(f, arg...) do {} while (0)
304# define DMDEBUG_LIMIT(f, arg...) do {} while (0)
305#endif
306
307#define DMEMIT(x...) sz += ((sz >= maxlen) ? \
308 0 : scnprintf(result + sz, maxlen - sz, x))
309
310#define SECTOR_SHIFT 9
311
312/*
313 * Definitions of return values from target end_io function.
314 */
315#define DM_ENDIO_INCOMPLETE 1
316#define DM_ENDIO_REQUEUE 2
317
318/*
319 * Definitions of return values from target map function.
320 */
321#define DM_MAPIO_SUBMITTED 0
322#define DM_MAPIO_REMAPPED 1
323#define DM_MAPIO_REQUEUE DM_ENDIO_REQUEUE
324
325/*
326 * Ceiling(n / sz)
327 */
328#define dm_div_up(n, sz) (((n) + (sz) - 1) / (sz))
329
330#define dm_sector_div_up(n, sz) ( \
331{ \
332 sector_t _r = ((n) + (sz) - 1); \
333 sector_div(_r, (sz)); \
334 _r; \
335} \
336)
337
338/*
339 * ceiling(n / size) * size
340 */
341#define dm_round_up(n, sz) (dm_div_up((n), (sz)) * (sz))
342
343static inline sector_t to_sector(unsigned long n)
344{
345 return (n >> SECTOR_SHIFT);
346}
347
348static inline unsigned long to_bytes(sector_t n)
349{
350 return (n << SECTOR_SHIFT);
351}
352
261#endif /* __KERNEL__ */ 353#endif /* __KERNEL__ */
262#endif /* _LINUX_DEVICE_MAPPER_H */ 354#endif /* _LINUX_DEVICE_MAPPER_H */