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18#ifndef __XFS_LINUX__
19#define __XFS_LINUX__
20
21#include <linux/types.h>
22
23
24
25
26typedef signed char __int8_t;
27typedef unsigned char __uint8_t;
28typedef signed short int __int16_t;
29typedef unsigned short int __uint16_t;
30typedef signed int __int32_t;
31typedef unsigned int __uint32_t;
32typedef signed long long int __int64_t;
33typedef unsigned long long int __uint64_t;
34
35typedef __uint32_t inst_t;
36
37typedef __s64 xfs_off_t;
38typedef unsigned long long xfs_ino_t;
39typedef __s64 xfs_daddr_t;
40typedef char * xfs_caddr_t;
41typedef __u32 xfs_dev_t;
42typedef __u32 xfs_nlink_t;
43
44
45#if (BITS_PER_LONG == 32)
46typedef __int32_t __psint_t;
47typedef __uint32_t __psunsigned_t;
48#elif (BITS_PER_LONG == 64)
49typedef __int64_t __psint_t;
50typedef __uint64_t __psunsigned_t;
51#else
52#error BITS_PER_LONG must be 32 or 64
53#endif
54
55#include "xfs_types.h"
56
57#include "kmem.h"
58#include "mrlock.h"
59#include "uuid.h"
60
61#include <linux/semaphore.h>
62#include <linux/mm.h>
63#include <linux/kernel.h>
64#include <linux/blkdev.h>
65#include <linux/slab.h>
66#include <linux/crc32c.h>
67#include <linux/module.h>
68#include <linux/mutex.h>
69#include <linux/file.h>
70#include <linux/swap.h>
71#include <linux/errno.h>
72#include <linux/sched.h>
73#include <linux/bitops.h>
74#include <linux/major.h>
75#include <linux/pagemap.h>
76#include <linux/vfs.h>
77#include <linux/seq_file.h>
78#include <linux/init.h>
79#include <linux/list.h>
80#include <linux/proc_fs.h>
81#include <linux/sort.h>
82#include <linux/cpu.h>
83#include <linux/notifier.h>
84#include <linux/delay.h>
85#include <linux/log2.h>
86#include <linux/spinlock.h>
87#include <linux/random.h>
88#include <linux/ctype.h>
89#include <linux/writeback.h>
90#include <linux/capability.h>
91#include <linux/kthread.h>
92#include <linux/freezer.h>
93#include <linux/list_sort.h>
94#include <linux/ratelimit.h>
95
96#include <asm/page.h>
97#include <asm/div64.h>
98#include <asm/param.h>
99#include <asm/uaccess.h>
100#include <asm/byteorder.h>
101#include <asm/unaligned.h>
102
103#include "xfs_fs.h"
104#include "xfs_stats.h"
105#include "xfs_sysctl.h"
106#include "xfs_iops.h"
107#include "xfs_aops.h"
108#include "xfs_super.h"
109#include "xfs_cksum.h"
110#include "xfs_buf.h"
111#include "xfs_message.h"
112
113#ifdef __BIG_ENDIAN
114#define XFS_NATIVE_HOST 1
115#else
116#undef XFS_NATIVE_HOST
117#endif
118
119
120
121
122#ifdef CONFIG_SMP
123#define HAVE_PERCPU_SB
124#else
125#undef HAVE_PERCPU_SB
126#endif
127
128#define irix_sgid_inherit xfs_params.sgid_inherit.val
129#define irix_symlink_mode xfs_params.symlink_mode.val
130#define xfs_panic_mask xfs_params.panic_mask.val
131#define xfs_error_level xfs_params.error_level.val
132#define xfs_syncd_centisecs xfs_params.syncd_timer.val
133#define xfs_stats_clear xfs_params.stats_clear.val
134#define xfs_inherit_sync xfs_params.inherit_sync.val
135#define xfs_inherit_nodump xfs_params.inherit_nodump.val
136#define xfs_inherit_noatime xfs_params.inherit_noatim.val
137#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val
138#define xfs_rotorstep xfs_params.rotorstep.val
139#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val
140#define xfs_fstrm_centisecs xfs_params.fstrm_timer.val
141#define xfs_eofb_secs xfs_params.eofb_timer.val
142
143#define current_cpu() (raw_smp_processor_id())
144#define current_pid() (current->pid)
145#define current_test_flags(f) (current->flags & (f))
146#define current_set_flags_nested(sp, f) \
147 (*(sp) = current->flags, current->flags |= (f))
148#define current_clear_flags_nested(sp, f) \
149 (*(sp) = current->flags, current->flags &= ~(f))
150#define current_restore_flags_nested(sp, f) \
151 (current->flags = ((current->flags & ~(f)) | (*(sp) & (f))))
152
153#define spinlock_destroy(lock)
154
155#define NBBY 8
156
157
158
159
160
161#define BLKDEV_IOSHIFT PAGE_CACHE_SHIFT
162#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT)
163
164#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
165
166#define ENOATTR ENODATA
167#define EWRONGFS EINVAL
168#define EFSCORRUPTED EUCLEAN
169#define EFSBADCRC EBADMSG
170
171#define SYNCHRONIZE() barrier()
172#define __return_address __builtin_return_address(0)
173
174#define XFS_PROJID_DEFAULT 0
175#define MAXPATHLEN 1024
176
177#define MIN(a,b) (min(a,b))
178#define MAX(a,b) (max(a,b))
179#define howmany(x, y) (((x)+((y)-1))/(y))
180
181static inline void delay(long ticks)
182{
183 schedule_timeout_uninterruptible(ticks);
184}
185
186
187
188
189
190
191
192struct xfs_kobj {
193 struct kobject kobject;
194 struct completion complete;
195};
196
197
198
199
200
201
202
203static inline __uint32_t xfs_kuid_to_uid(kuid_t uid)
204{
205 return from_kuid(&init_user_ns, uid);
206}
207
208static inline kuid_t xfs_uid_to_kuid(__uint32_t uid)
209{
210 return make_kuid(&init_user_ns, uid);
211}
212
213static inline __uint32_t xfs_kgid_to_gid(kgid_t gid)
214{
215 return from_kgid(&init_user_ns, gid);
216}
217
218static inline kgid_t xfs_gid_to_kgid(__uint32_t gid)
219{
220 return make_kgid(&init_user_ns, gid);
221}
222
223
224
225
226#define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL)
227#define xfs_stack_trace() dump_stack()
228
229
230
231
232#if defined __i386__
233
234
235
236
237static inline __u32 xfs_do_div(void *a, __u32 b, int n)
238{
239 __u32 mod;
240
241 switch (n) {
242 case 4:
243 mod = *(__u32 *)a % b;
244 *(__u32 *)a = *(__u32 *)a / b;
245 return mod;
246 case 8:
247 {
248 unsigned long __upper, __low, __high, __mod;
249 __u64 c = *(__u64 *)a;
250 __upper = __high = c >> 32;
251 __low = c;
252 if (__high) {
253 __upper = __high % (b);
254 __high = __high / (b);
255 }
256 asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
257 asm("":"=A" (c):"a" (__low),"d" (__high));
258 *(__u64 *)a = c;
259 return __mod;
260 }
261 }
262
263
264 return 0;
265}
266
267
268static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
269{
270 switch (n) {
271 case 4:
272 return *(__u32 *)a % b;
273 case 8:
274 {
275 unsigned long __upper, __low, __high, __mod;
276 __u64 c = *(__u64 *)a;
277 __upper = __high = c >> 32;
278 __low = c;
279 if (__high) {
280 __upper = __high % (b);
281 __high = __high / (b);
282 }
283 asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
284 asm("":"=A" (c):"a" (__low),"d" (__high));
285 return __mod;
286 }
287 }
288
289
290 return 0;
291}
292#else
293static inline __u32 xfs_do_div(void *a, __u32 b, int n)
294{
295 __u32 mod;
296
297 switch (n) {
298 case 4:
299 mod = *(__u32 *)a % b;
300 *(__u32 *)a = *(__u32 *)a / b;
301 return mod;
302 case 8:
303 mod = do_div(*(__u64 *)a, b);
304 return mod;
305 }
306
307
308 return 0;
309}
310
311
312static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
313{
314 switch (n) {
315 case 4:
316 return *(__u32 *)a % b;
317 case 8:
318 {
319 __u64 c = *(__u64 *)a;
320 return do_div(c, b);
321 }
322 }
323
324
325 return 0;
326}
327#endif
328
329#undef do_div
330#define do_div(a, b) xfs_do_div(&(a), (b), sizeof(a))
331#define do_mod(a, b) xfs_do_mod(&(a), (b), sizeof(a))
332
333static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y)
334{
335 x += y - 1;
336 do_div(x, y);
337 return x * y;
338}
339
340static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)
341{
342 x += y - 1;
343 do_div(x, y);
344 return x;
345}
346
347
348#if defined(__arm__) && !defined(__ARM_EABI__)
349#define __arch_pack __attribute__((packed))
350#else
351#define __arch_pack
352#endif
353
354#define ASSERT_ALWAYS(expr) \
355 (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
356
357#ifdef DEBUG
358#define ASSERT(expr) \
359 (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
360
361#ifndef STATIC
362# define STATIC noinline
363#endif
364
365#else
366
367#ifdef XFS_WARN
368
369#define ASSERT(expr) \
370 (unlikely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
371
372#ifndef STATIC
373# define STATIC static noinline
374#endif
375
376#else
377
378#define ASSERT(expr) ((void)0)
379
380#ifndef STATIC
381# define STATIC static noinline
382#endif
383
384#endif
385#endif
386
387#endif
388