1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <info@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * User-space Lustre headers.
32 #include <sys/types.h>
36 #include <sys/ioctl.h>
43 #include <portals/list.h>
44 #include <portals/p30.h>
45 #include <linux/kp30.h>
47 /* definitions for liblustre */
52 #define PAGE_SIZE (1UL << PAGE_SHIFT)
53 #define PAGE_MASK (~(PAGE_SIZE-1))
56 typedef unsigned short umode_t;
60 /* This is because lprocfs_status.h gets included here indirectly. It would
61 * be much better to just avoid lprocfs being included into liblustre entirely
62 * but that requires more header surgery than I can handle right now.
64 #ifndef smp_processor_id
65 #define smp_processor_id() 0
68 /* always adopt 2.5 definitions */
69 #define KERNEL_VERSION(a,b,c) ((a)*100+(b)*10+c)
70 #define LINUX_VERSION_CODE (2*200+5*10+0)
72 static inline void inter_module_put(void *a)
77 extern ptl_handle_ni_t tcpnal_ni;
79 void *inter_module_get(char *arg);
84 void (*ws_task)(void *arg);
88 static inline void prepare_work(struct work_struct *q, void (*t)(void *),
96 static inline void schedule_work(struct work_struct *q)
98 q->ws_task(q->ws_arg);
102 #define strnlen(a,b) strlen(a)
103 static inline void *kmalloc(int size, int prot)
107 #define vmalloc malloc
109 #define kfree(a) free(a)
111 #define GFP_HIGHUSER 1
114 #define IS_ERR(a) (((a) && abs((long)(a)) < 500) ? 1 : 0)
115 #define PTR_ERR(a) ((long)(a))
116 #define ERR_PTR(a) ((void*)((long)(a)))
118 #define capable(foo) 1
119 #define CAP_SYS_ADMIN 1
126 typedef int (read_proc_t)(char *page, char **start, off_t off,
127 int count, int *eof, void *data);
129 struct file; /* forward ref */
130 typedef int (write_proc_t)(struct file *file, const char *buffer,
131 unsigned long count, void *data);
134 #define __swab16(x) \
138 (((__u16)(__x) & (__u16)0x00ffU) << 8) | \
139 (((__u16)(__x) & (__u16)0xff00U) >> 8) )); \
142 #define __swab32(x) \
146 (((__u32)(__x) & (__u32)0x000000ffUL) << 24) | \
147 (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | \
148 (((__u32)(__x) & (__u32)0x00ff0000UL) >> 8) | \
149 (((__u32)(__x) & (__u32)0xff000000UL) >> 24) )); \
152 #define __swab64(x) \
156 (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
157 (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
158 (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
159 (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) << 8) | \
160 (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >> 8) | \
161 (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
162 (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
163 (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56) )); \
166 #define __swab16s(x) __swab16(*(x))
167 #define __swab32s(x) __swab32(*(x))
168 #define __swab64s(x) __swab64(*(x))
170 #define __LITTLE_ENDIAN__
171 #ifdef __LITTLE_ENDIAN__
172 # define le16_to_cpu(x) ((__u16)(x))
173 # define cpu_to_le16(x) ((__u16)(x))
174 # define le32_to_cpu(x) ((__u32)(x))
175 # define cpu_to_le32(x) ((__u32)(x))
176 # define le64_to_cpu(x) ((__u64)(x))
177 # define cpu_to_le64(x) ((__u64)(x))
179 # define le16_to_cpu(x) __swab16(x)
180 # define cpu_to_le16(x) __swab16(x)
181 # define le32_to_cpu(x) __swab32(x)
182 # define cpu_to_le32(x) __swab32(x)
183 # define le64_to_cpu(x) __swab64(x)
184 # define cpu_to_le64(x) __swab64(x)
185 # error "do more check here!!!"
188 #define NIPQUAD(addr) \
189 ((unsigned char *)&addr)[0], \
190 ((unsigned char *)&addr)[1], \
191 ((unsigned char *)&addr)[2], \
192 ((unsigned char *)&addr)[3]
194 #if defined(__LITTLE_ENDIAN__)
195 #define HIPQUAD(addr) \
196 ((unsigned char *)&addr)[3], \
197 ((unsigned char *)&addr)[2], \
198 ((unsigned char *)&addr)[1], \
199 ((unsigned char *)&addr)[0]
200 #elif defined(__BIG_ENDIAN__)
201 #define HIPQUAD NIPQUAD
203 #error "Please fix asm/byteorder.h"
204 #endif /* __LITTLE_ENDIAN__ */
207 static __inline__ int set_bit(int nr,long * addr)
212 mask = 1 << (nr & 0x1f);
213 retval = (mask & *addr) != 0;
218 static __inline__ int clear_bit(int nr, long * addr)
223 mask = 1 << (nr & 0x1f);
224 retval = (mask & *addr) != 0;
229 static __inline__ int test_bit(int nr, long * addr)
234 mask = 1 << (nr & 0x1f);
235 return ((mask & *addr) != 0);
238 static __inline__ int ext2_set_bit(int nr, void *addr)
240 return set_bit(nr, (long*)addr);
243 static __inline__ int ext2_clear_bit(int nr, void *addr)
245 return clear_bit(nr, (long*)addr);
248 static __inline__ int ext2_test_bit(int nr, void *addr)
250 return test_bit(nr, (long*)addr);
259 static inline void MODULE_AUTHOR(char *name)
261 printf("%s\n", name);
263 #define MODULE_DESCRIPTION(name) MODULE_AUTHOR(name)
264 #define MODULE_LICENSE(name) MODULE_AUTHOR(name)
266 #define THIS_MODULE NULL
272 static inline int misc_register(void *foo)
277 static inline int misc_deregister(void *foo)
282 static inline int request_module(char *name)
287 #define __MOD_INC_USE_COUNT(m) do {int a = 1; a++; } while (0)
288 #define __MOD_DEC_USE_COUNT(m) do {int a = 1; a++; } while (0)
289 #define MOD_INC_USE_COUNT do {int a = 1; a++; } while (0)
290 #define MOD_DEC_USE_COUNT do {int a = 1; a++; } while (0)
291 #define try_module_get __MOD_INC_USE_COUNT
292 #define module_put __MOD_DEC_USE_COUNT
294 /* module initialization */
295 extern int init_obdclass(void);
296 extern int ptlrpc_init(void);
297 extern int ldlm_init(void);
298 extern int osc_init(void);
299 extern int lov_init(void);
300 extern int mdc_init(void);
301 extern int echo_client_init(void);
308 #define EXPORT_SYMBOL(S)
310 typedef int spinlock_t;
311 typedef __u64 kdev_t;
313 #define SPIN_LOCK_UNLOCKED 0
314 static inline void spin_lock(spinlock_t *l) {return;}
315 static inline void spin_unlock(spinlock_t *l) {return;}
316 static inline void spin_lock_init(spinlock_t *l) {return;}
317 static inline void local_irq_save(unsigned long flag) {return;}
318 static inline void local_irq_restore(unsigned long flag) {return;}
319 static inline int spin_is_locked(spinlock_t *l) {return 1;}
321 static inline void spin_lock_bh(spinlock_t *l)
325 static inline void spin_unlock_bh(spinlock_t *l)
329 static inline void spin_unlock_irqrestore(spinlock_t *a, unsigned long b)
333 static inline void spin_lock_irqsave(spinlock_t *a, unsigned long b)
338 #define min(x,y) ((x)<(y) ? (x) : (y))
339 #define max(x,y) ((x)>(y) ? (x) : (y))
342 #define min_t(type,x,y) \
343 ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
346 #define max_t(type,x,y) \
347 ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
350 /* registering symbols */
352 #define ERESTARTSYS ERESTART
357 static inline void get_random_bytes(void *ptr, int size)
360 int i, count = size/sizeof(int);
362 for (i = 0; i< count; i++)
369 #define num_physpages (16 * 1024)
371 static inline int copy_from_user(void *a,void *b, int c)
377 static inline int copy_to_user(void *a,void *b, int c)
388 #define SLAB_HWCACHE_ALIGN 0
389 static inline kmem_cache_t *
390 kmem_cache_create(const char *name, size_t objsize, size_t cdum,
392 void (*e)(void *, kmem_cache_t *, unsigned long),
393 void (*f)(void *, kmem_cache_t *, unsigned long))
396 c = malloc(sizeof(*c));
400 CDEBUG(D_MALLOC, "alloc slab cache %s at %p, objsize %d\n",
401 name, c, (int)objsize);
405 static inline int kmem_cache_destroy(kmem_cache_t *a)
407 CDEBUG(D_MALLOC, "destroy slab cache %p, objsize %u\n", a, a->size);
411 #define kmem_cache_alloc(cache, prio) malloc(cache->size)
412 #define kmem_cache_free(cache, obj) free(obj)
414 #define PAGE_CACHE_SIZE PAGE_SIZE
415 #define PAGE_CACHE_SHIFT 12
416 #define PAGE_CACHE_MASK PAGE_MASK
419 * for this moment, liblusre will not rely OST for non-page-aligned write
421 #define LIBLUSTRE_HANDLE_UNALIGNED_PAGE
426 struct list_head list;
427 unsigned long private;
429 /* internally used by liblustre file i/o */
432 #ifdef LIBLUSTRE_HANDLE_UNALIGNED_PAGE
437 #define kmap(page) (page)->addr
438 #define kunmap(a) do { int foo = 1; foo++; } while (0)
440 static inline struct page *alloc_pages(int mask, unsigned long order)
442 struct page *pg = malloc(sizeof(*pg));
446 #if 0 //#ifdef MAP_ANONYMOUS
447 pg->addr = mmap(0, PAGE_SIZE << order, PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
449 pg->addr = malloc(PAGE_SIZE << order);
459 #define alloc_page(mask) alloc_pages((mask), 0)
461 static inline void __free_pages(struct page *pg, int what)
463 #if 0 //#ifdef MAP_ANONYMOUS
464 munmap(pg->addr, PAGE_SIZE);
471 #define __free_page(page) __free_pages((page), 0)
472 #define free_page(page) __free_page(page)
474 static inline struct page* __grab_cache_page(unsigned long index)
476 struct page *pg = alloc_pages(0, 0);
483 #define grab_cache_page(index) __grab_cache_page(index)
484 #define page_cache_release(page) __free_pages(page, 0)
487 #define do_div(a,b) \
489 unsigned long remainder;\
490 remainder = (a) % (b); \
496 #define ATTR_MODE 0x0001
497 #define ATTR_UID 0x0002
498 #define ATTR_GID 0x0004
499 #define ATTR_SIZE 0x0008
500 #define ATTR_ATIME 0x0010
501 #define ATTR_MTIME 0x0020
502 #define ATTR_CTIME 0x0040
503 #define ATTR_ATIME_SET 0x0080
504 #define ATTR_MTIME_SET 0x0100
505 #define ATTR_FORCE 0x0200 /* Not a change, but a change it */
506 #define ATTR_ATTR_FLAG 0x0400
507 #define ATTR_RAW 0x0800 /* file system, not vfs will massage attrs */
508 #define ATTR_FROM_OPEN 0x1000 /* called from open path, ie O_TRUNC */
509 #define ATTR_CTIME_SET 0x2000
512 unsigned int ia_valid;
520 unsigned int ia_attr_flags;
523 #define IT_OPEN 0x0001
524 #define IT_CREAT 0x0002
525 #define IT_READDIR 0x0004
526 #define IT_GETATTR 0x0008
527 #define IT_LOOKUP 0x0010
528 #define IT_UNLINK 0x0020
529 #define IT_GETXATTR 0x0040
530 #define IT_EXEC 0x0080
531 #define IT_PIN 0x0100
533 #define IT_FL_LOCKED 0x0001
534 #define IT_FL_FOLLOWED 0x0002 /* set by vfs_follow_link */
536 #define INTENT_MAGIC 0x19620323
538 struct lustre_intent_data {
541 __u64 it_lock_handle;
546 struct lookup_intent {
548 void (*it_op_release)(struct lookup_intent *);
553 struct lustre_intent_data lustre;
557 static inline void intent_init(struct lookup_intent *it, int op, int flags)
559 memset(it, 0, sizeof(*it));
560 it->it_magic = INTENT_MAGIC;
562 it->it_flags = flags;
574 #define cpu_to_le32(x) ((__u32)(x))
577 struct rw_semaphore {
586 #define down(a) do {(a)->count++;} while (0)
587 #define up(a) do {(a)->count--;} while (0)
588 #define down_read(a) do {(a)->count++;} while (0)
589 #define up_read(a) do {(a)->count--;} while (0)
590 #define down_write(a) do {(a)->count++;} while (0)
591 #define up_write(a) do {(a)->count--;} while (0)
592 #define sema_init(a,b) do { (a)->count = b; } while (0)
593 #define init_rwsem(a) do {} while (0)
594 #define DECLARE_MUTEX(name) \
595 struct semaphore name = { 1 }
596 static inline void init_MUTEX (struct semaphore *sem)
603 struct list_head sleepers;
607 struct list_head sleeping;
620 struct fs_struct *fs;
622 struct signal pending;
630 extern struct task_struct *current;
632 #define in_group_p(a) 0 /* FIXME */
634 #define set_current_state(foo) do { current->state = foo; } while (0)
636 #define init_waitqueue_entry(q,p) do { (q)->process = p; } while (0)
637 #define add_wait_queue(q,p) do { list_add(&(q)->sleepers, &(p)->sleeping); } while (0)
638 #define del_wait_queue(p) do { list_del(&(p)->sleeping); } while (0)
639 #define remove_wait_queue(q,p) do { list_del(&(p)->sleeping); } while (0)
641 #define init_waitqueue_head(l) INIT_LIST_HEAD(&(l)->sleepers)
642 #define wake_up(l) do { int a; a++; } while (0)
643 #define TASK_INTERRUPTIBLE 0
644 #define TASK_UNINTERRUPTIBLE 1
645 #define TASK_RUNNING 2
647 #define wait_event_interruptible(wq, condition) \
649 struct l_wait_info lwi; \
650 int timeout = 100000000;/* for ever */ \
653 lwi = LWI_TIMEOUT(timeout, NULL, NULL); \
654 ret = l_wait_event(NULL, condition, &lwi); \
659 #define in_interrupt() (0)
661 #define schedule() do { int a; a++; } while (0)
662 static inline int schedule_timeout(signed long t)
667 #define lock_kernel() do { int a; a++; } while (0)
668 #define daemonize(l) do { int a; a++; } while (0)
669 #define sigfillset(l) do { int a; a++; } while (0)
670 #define recalc_sigpending(l) do { int a; a++; } while (0)
671 #define kernel_thread(l,m,n) LBUG()
673 #define USERMODEHELPER(path, argv, envp) (0)
675 static inline int call_usermodehelper(char *prog, char **argv, char **evnp, int unknown)
681 #define SIGNAL_MASK_ASSERT()
688 struct list_head tl_list;
689 void (*function)(unsigned long unused);
694 static inline int timer_pending(struct timer_list *l)
696 if (l->expires > jiffies)
702 static inline int init_timer(struct timer_list *l)
704 INIT_LIST_HEAD(&l->tl_list);
708 static inline void mod_timer(struct timer_list *l, int thetime)
710 l->expires = thetime;
713 static inline void del_timer(struct timer_list *l)
718 #define time_after(a, b) \
720 printf("Error: inapproiate call time_after()\n"); \
724 typedef struct { volatile int counter; } atomic_t;
726 #define atomic_read(a) ((a)->counter)
727 #define atomic_set(a,b) do {(a)->counter = b; } while (0)
728 #define atomic_dec_and_test(a) ((--((a)->counter)) == 0)
729 #define atomic_inc(a) (((a)->counter)++)
730 #define atomic_dec(a) do { (a)->counter--; } while (0)
731 #define atomic_add(b,a) do {(a)->counter += b;} while (0)
732 #define atomic_sub(b,a) do {(a)->counter -= b;} while (0)
735 #define likely(exp) (exp)
738 #define unlikely(exp) (exp)
742 static inline int llog_init_commit_master(void) { return 0; }
743 static inline int llog_cleanup_commit_master(int force) { return 0; }
744 static inline void portals_run_lbug_upcall(char *file, const char *fn,
749 printf("!!!LBUG at %s:%d\n", __FILE__, __LINE__); \
758 wait_queue_head_t wait;
761 #define COMPLETION_INITIALIZER(work) \
762 { 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) }
764 #define DECLARE_COMPLETION(work) \
765 struct completion work = COMPLETION_INITIALIZER(work)
767 #define INIT_COMPLETION(x) ((x).done = 0)
769 static inline void init_completion(struct completion *x)
772 init_waitqueue_head(&x->wait);
775 struct liblustre_wait_callback {
776 struct list_head llwc_list;
777 int (*llwc_fn)(void *arg);
781 void *liblustre_register_wait_callback(int (*fn)(void *arg), void *arg);
782 void liblustre_deregister_wait_callback(void *notifier);
783 int liblustre_wait_event(int timeout);
785 #include <linux/obd_support.h>
786 #include <linux/lustre_idl.h>
787 #include <linux/lustre_lib.h>
788 #include <linux/lustre_import.h>
789 #include <linux/lustre_export.h>
790 #include <linux/lustre_net.h>