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.
28 #include <asm/byteorder.h>
33 #include <sys/types.h>
37 #include <sys/ioctl.h>
44 #include <portals/list.h>
45 #include <portals/p30.h>
46 #include <linux/kp30.h>
48 /* definitions for liblustre */
53 #define PAGE_SIZE (1UL << PAGE_SHIFT)
54 #define PAGE_MASK (~(PAGE_SIZE-1))
55 #define loff_t long long
57 typedef unsigned short umode_t;
61 /* This is because lprocfs_status.h gets included here indirectly. It would
62 * be much better to just avoid lprocfs being included into liblustre entirely
63 * but that requires more header surgery than I can handle right now.
65 #ifndef smp_processor_id
66 #define smp_processor_id() 0
69 /* always adopt 2.5 definitions */
70 #define KERNEL_VERSION(a,b,c) ((a)*100+(b)*10+c)
71 #define LINUX_VERSION_CODE (2*200+5*10+0)
73 static inline void inter_module_put(void *a)
78 extern ptl_handle_ni_t tcpnal_ni;
80 void *inter_module_get(char *arg);
85 void (*ws_task)(void *arg);
89 static inline void prepare_work(struct work_struct *q, void (*t)(void *),
97 static inline void schedule_work(struct work_struct *q)
99 q->ws_task(q->ws_arg);
103 #define strnlen(a,b) strlen(a)
104 static inline void *kmalloc(int size, int prot)
108 #define vmalloc malloc
110 #define kfree(a) free(a)
112 #define GFP_HIGHUSER 1
115 #define IS_ERR(a) (((a) && abs((long)(a)) < 500) ? 1 : 0)
116 #define PTR_ERR(a) ((long)(a))
117 #define ERR_PTR(a) ((void*)((long)(a)))
123 typedef int (read_proc_t)(char *page, char **start, off_t off,
124 int count, int *eof, void *data);
126 struct file; /* forward ref */
127 typedef int (write_proc_t)(struct file *file, const char *buffer,
128 unsigned long count, void *data);
130 # define le16_to_cpu(x) __le16_to_cpu(x)
131 # define cpu_to_le16(x) __cpu_to_le16(x)
132 # define le32_to_cpu(x) __le32_to_cpu(x)
133 # define cpu_to_le32(x) __cpu_to_le32(x)
134 # define le64_to_cpu(x) __le64_to_cpu(x)
135 # define cpu_to_le64(x) __cpu_to_le64(x)
137 #define NIPQUAD(addr) \
138 ((unsigned char *)&addr)[0], \
139 ((unsigned char *)&addr)[1], \
140 ((unsigned char *)&addr)[2], \
141 ((unsigned char *)&addr)[3]
143 #if defined(__LITTLE_ENDIAN)
144 #define HIPQUAD(addr) \
145 ((unsigned char *)&addr)[3], \
146 ((unsigned char *)&addr)[2], \
147 ((unsigned char *)&addr)[1], \
148 ((unsigned char *)&addr)[0]
149 #elif defined(__BIG_ENDIAN)
150 #define HIPQUAD NIPQUAD
152 #error "Undefined byteorder??"
153 #endif /* __LITTLE_ENDIAN */
156 static __inline__ int set_bit(int nr,long * addr)
161 mask = 1 << (nr & 0x1f);
162 retval = (mask & *addr) != 0;
167 static __inline__ int clear_bit(int nr, long * addr)
172 mask = 1 << (nr & 0x1f);
173 retval = (mask & *addr) != 0;
178 static __inline__ int test_bit(int nr, long * addr)
183 mask = 1 << (nr & 0x1f);
184 return ((mask & *addr) != 0);
187 static __inline__ int ext2_set_bit(int nr, void *addr)
189 return set_bit(nr, (long*)addr);
192 static __inline__ int ext2_clear_bit(int nr, void *addr)
194 return clear_bit(nr, (long*)addr);
197 static __inline__ int ext2_test_bit(int nr, void *addr)
199 return test_bit(nr, (long*)addr);
208 static inline void MODULE_AUTHOR(char *name)
210 printf("%s\n", name);
212 #define MODULE_DESCRIPTION(name) MODULE_AUTHOR(name)
213 #define MODULE_LICENSE(name) MODULE_AUTHOR(name)
215 #define THIS_MODULE NULL
221 static inline int misc_register(void *foo)
226 static inline int misc_deregister(void *foo)
231 static inline int request_module(char *name)
236 #define __MOD_INC_USE_COUNT(m) do {} while (0)
237 #define __MOD_DEC_USE_COUNT(m) do {} while (0)
238 #define MOD_INC_USE_COUNT do {} while (0)
239 #define MOD_DEC_USE_COUNT do {} while (0)
240 static inline void __module_get(struct module *module)
244 static inline int try_module_get(struct module *module)
249 static inline void module_put(struct module *module)
253 /* module initialization */
254 extern int init_obdclass(void);
255 extern int ptlrpc_init(void);
256 extern int ldlm_init(void);
257 extern int osc_init(void);
258 extern int lov_init(void);
259 extern int mdc_init(void);
260 extern int echo_client_init(void);
266 #define EXPORT_SYMBOL(S)
268 typedef struct { } spinlock_t;
269 typedef __u64 kdev_t;
271 #define SPIN_LOCK_UNLOCKED (spinlock_t) { }
272 #define LASSERT_SPIN_LOCKED(lock) do {} while(0)
274 static inline void spin_lock(spinlock_t *l) {return;}
275 static inline void spin_unlock(spinlock_t *l) {return;}
276 static inline void spin_lock_init(spinlock_t *l) {return;}
277 static inline void local_irq_save(unsigned long flag) {return;}
278 static inline void local_irq_restore(unsigned long flag) {return;}
279 static inline int spin_is_locked(spinlock_t *l) {return 1;}
281 static inline void spin_lock_bh(spinlock_t *l) {}
282 static inline void spin_unlock_bh(spinlock_t *l) {}
283 static inline void spin_lock_irqsave(spinlock_t *a, unsigned long b) {}
284 static inline void spin_unlock_irqrestore(spinlock_t *a, unsigned long b) {}
286 #define min(x,y) ((x)<(y) ? (x) : (y))
287 #define max(x,y) ((x)>(y) ? (x) : (y))
290 #define min_t(type,x,y) \
291 ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
294 #define max_t(type,x,y) \
295 ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
298 /* registering symbols */
300 #define ERESTARTSYS ERESTART
305 void get_random_bytes(void *ptr, int size);
310 #define num_physpages (16 * 1024)
312 static inline int copy_from_user(void *a,void *b, int c)
318 static inline int copy_to_user(void *a,void *b, int c)
329 #define SLAB_HWCACHE_ALIGN 0
330 static inline kmem_cache_t *
331 kmem_cache_create(const char *name, size_t objsize, size_t cdum,
333 void (*e)(void *, kmem_cache_t *, unsigned long),
334 void (*f)(void *, kmem_cache_t *, unsigned long))
337 c = malloc(sizeof(*c));
341 CDEBUG(D_MALLOC, "alloc slab cache %s at %p, objsize %d\n",
342 name, c, (int)objsize);
346 static inline int kmem_cache_destroy(kmem_cache_t *a)
348 CDEBUG(D_MALLOC, "destroy slab cache %p, objsize %u\n", a, a->size);
352 #define kmem_cache_alloc(cache, prio) malloc(cache->size)
353 #define kmem_cache_free(cache, obj) free(obj)
355 #define PAGE_CACHE_SIZE PAGE_SIZE
356 #define PAGE_CACHE_SHIFT 12
357 #define PAGE_CACHE_MASK PAGE_MASK
362 struct list_head list;
363 unsigned long private;
365 /* internally used by liblustre file i/o */
371 #define PAGE_LIST_ENTRY list
372 #define PAGE_LIST(page) ((page)->list)
374 #define kmap(page) (page)->addr
375 #define kunmap(a) do {} while (0)
377 static inline struct page *alloc_pages(int mask, unsigned long order)
379 struct page *pg = malloc(sizeof(*pg));
383 #if 0 //#ifdef MAP_ANONYMOUS
384 pg->addr = mmap(0, PAGE_SIZE << order, PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
386 pg->addr = malloc(PAGE_SIZE << order);
396 #define alloc_page(mask) alloc_pages((mask), 0)
398 static inline void __free_pages(struct page *pg, int what)
400 #if 0 //#ifdef MAP_ANONYMOUS
401 munmap(pg->addr, PAGE_SIZE);
408 #define __free_page(page) __free_pages((page), 0)
409 #define free_page(page) __free_page(page)
411 static inline struct page* __grab_cache_page(unsigned long index)
413 struct page *pg = alloc_pages(0, 0);
420 #define grab_cache_page(index) __grab_cache_page(index)
421 #define page_cache_release(page) __free_pages(page, 0)
424 #define do_div(a,b) \
426 unsigned long remainder;\
427 remainder = (a) % (b); \
433 #define ATTR_MODE 0x0001
434 #define ATTR_UID 0x0002
435 #define ATTR_GID 0x0004
436 #define ATTR_SIZE 0x0008
437 #define ATTR_ATIME 0x0010
438 #define ATTR_MTIME 0x0020
439 #define ATTR_CTIME 0x0040
440 #define ATTR_ATIME_SET 0x0080
441 #define ATTR_MTIME_SET 0x0100
442 #define ATTR_FORCE 0x0200 /* Not a change, but a change it */
443 #define ATTR_ATTR_FLAG 0x0400
444 #define ATTR_RAW 0x0800 /* file system, not vfs will massage attrs */
445 #define ATTR_FROM_OPEN 0x1000 /* called from open path, ie O_TRUNC */
446 #define ATTR_CTIME_SET 0x2000
449 unsigned int ia_valid;
457 unsigned int ia_attr_flags;
460 #define IT_OPEN 0x0001
461 #define IT_CREAT 0x0002
462 #define IT_READDIR 0x0004
463 #define IT_GETATTR 0x0008
464 #define IT_LOOKUP 0x0010
465 #define IT_UNLINK 0x0020
466 #define IT_GETXATTR 0x0040
467 #define IT_EXEC 0x0080
468 #define IT_PIN 0x0100
469 #define IT_CHDIR 0x0200
471 #define IT_FL_LOCKED 0x0001
472 #define IT_FL_FOLLOWED 0x0002 /* set by vfs_follow_link */
474 #define INTENT_MAGIC 0x19620323
476 struct lustre_intent_data {
479 __u64 it_lock_handle;
484 struct lookup_intent {
486 void (*it_op_release)(struct lookup_intent *);
491 struct lustre_intent_data lustre;
495 static inline void intent_init(struct lookup_intent *it, int op, int flags)
497 memset(it, 0, sizeof(*it));
498 it->it_magic = INTENT_MAGIC;
500 it->it_flags = flags;
513 struct rw_semaphore {
522 /* use the macro's argument to avoid unused warnings */
523 #define down(a) do { (void)a; } while (0)
524 #define up(a) do { (void)a; } while (0)
525 #define down_read(a) do { (void)a; } while (0)
526 #define up_read(a) do { (void)a; } while (0)
527 #define down_write(a) do { (void)a; } while (0)
528 #define up_write(a) do { (void)a; } while (0)
529 #define sema_init(a,b) do { (void)a; } while (0)
530 #define init_rwsem(a) do { (void)a; } while (0)
531 #define DECLARE_MUTEX(name) \
532 struct semaphore name = { 1 }
533 static inline void init_MUTEX (struct semaphore *sem)
540 struct list_head sleepers;
544 struct list_head sleeping;
557 struct fs_struct *fs;
559 struct signal pending;
569 struct fs_struct __fs;
572 extern struct task_struct *current;
573 int in_group_p(gid_t gid);
574 static inline int capable(int cap)
576 if (current->cap_effective & (1 << cap))
582 #define set_current_state(foo) do { current->state = foo; } while (0)
584 #define init_waitqueue_entry(q,p) do { (q)->process = p; } while (0)
585 #define add_wait_queue(q,p) do { list_add(&(q)->sleepers, &(p)->sleeping); } while (0)
586 #define del_wait_queue(p) do { list_del(&(p)->sleeping); } while (0)
587 #define remove_wait_queue(q,p) do { list_del(&(p)->sleeping); } while (0)
589 #define DECLARE_WAIT_QUEUE_HEAD(HEAD) \
590 wait_queue_head_t HEAD = { \
591 .sleepers = LIST_HEAD_INIT(HEAD.sleepers) \
593 #define init_waitqueue_head(l) INIT_LIST_HEAD(&(l)->sleepers)
594 #define wake_up(l) do { int a; a++; } while (0)
595 #define TASK_INTERRUPTIBLE 0
596 #define TASK_UNINTERRUPTIBLE 1
597 #define TASK_RUNNING 2
599 #define wait_event_interruptible(wq, condition) \
601 struct l_wait_info lwi; \
602 int timeout = 100000000;/* for ever */ \
605 lwi = LWI_TIMEOUT(timeout, NULL, NULL); \
606 ret = l_wait_event(NULL, condition, &lwi); \
611 #define in_interrupt() (0)
613 #define schedule() do {} while (0)
614 static inline int schedule_timeout(signed long t)
619 #define lock_kernel() do {} while (0)
620 #define daemonize(l) do {} while (0)
621 #define sigfillset(l) do {} while (0)
622 #define recalc_sigpending(l) do {} while (0)
623 #define kernel_thread(l,m,n) LBUG()
625 #define USERMODEHELPER(path, argv, envp) (0)
626 #define SIGNAL_MASK_ASSERT()
629 #include <sys/time.h>
631 #error "liblustre's jiffies currently expects HZ to be 1"
635 unsigned long _ret = 0; \
637 if (gettimeofday(&tv, NULL) == 0) \
641 #define time_after(a, b) ((long)(b) - (long)(a) > 0)
642 #define time_before(a, b) time_after(b,a)
645 struct list_head tl_list;
646 void (*function)(unsigned long unused);
651 static inline int timer_pending(struct timer_list *l)
653 if (l->expires > jiffies)
659 static inline int init_timer(struct timer_list *l)
661 INIT_LIST_HEAD(&l->tl_list);
665 static inline void mod_timer(struct timer_list *l, int thetime)
667 l->expires = thetime;
670 static inline void del_timer(struct timer_list *l)
675 typedef struct { volatile int counter; } atomic_t;
677 #define atomic_read(a) ((a)->counter)
678 #define atomic_set(a,b) do {(a)->counter = b; } while (0)
679 #define atomic_dec_and_test(a) ((--((a)->counter)) == 0)
680 #define atomic_inc(a) (((a)->counter)++)
681 #define atomic_dec(a) do { (a)->counter--; } while (0)
682 #define atomic_add(b,a) do {(a)->counter += b;} while (0)
683 #define atomic_sub(b,a) do {(a)->counter -= b;} while (0)
686 #define likely(exp) (exp)
689 #define unlikely(exp) (exp)
692 /* FIXME sys/capability will finally included linux/fs.h thus
693 * cause numerous trouble on x86-64. as temporary solution for
694 * build broken at cary, we copy definition we need from capability.h
698 typedef struct _cap_struct *cap_t;
699 typedef int cap_value_t;
712 #define CAP_SYS_ADMIN 21
714 cap_t cap_get_proc(void);
715 int cap_get_flag(cap_t, cap_value_t, cap_flag_t, cap_flag_value_t *);
720 static inline int llog_init_commit_master(void) { return 0; }
721 static inline int llog_cleanup_commit_master(int force) { return 0; }
722 static inline void portals_run_lbug_upcall(char *file, const char *fn,
727 printf("!!!LBUG at %s:%d\n", __FILE__, __LINE__); \
736 wait_queue_head_t wait;
739 #define COMPLETION_INITIALIZER(work) \
740 { 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) }
742 #define DECLARE_COMPLETION(work) \
743 struct completion work = COMPLETION_INITIALIZER(work)
745 #define INIT_COMPLETION(x) ((x).done = 0)
747 static inline void init_completion(struct completion *x)
750 init_waitqueue_head(&x->wait);
753 struct liblustre_wait_callback {
754 struct list_head llwc_list;
755 int (*llwc_fn)(void *arg);
759 void *liblustre_register_wait_callback(int (*fn)(void *arg), void *arg);
760 void liblustre_deregister_wait_callback(void *notifier);
761 int liblustre_wait_event(int timeout);
763 #include <linux/obd_support.h>
764 #include <linux/lustre_idl.h>
765 #include <linux/lustre_lib.h>
766 #include <linux/lustre_import.h>
767 #include <linux/lustre_export.h>
768 #include <linux/lustre_net.h>