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[PATCH] error path in setup_arg_pages() misses vm_unacct_memory()
[linux-2.6-block.git] / arch / mips / kernel / sysirix.c
CommitLineData
1da177e4
LT		 1/*
2 * sysirix.c: IRIX system call emulation.
3 *
4 * Copyright (C) 1996 David S. Miller
5 * Copyright (C) 1997 Miguel de Icaza
6 * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
7 */
8#include <linux/kernel.h>
9#include <linux/sched.h>
10#include <linux/binfmts.h>
11#include <linux/highuid.h>
12#include <linux/pagemap.h>
13#include <linux/mm.h>
14#include <linux/mman.h>
15#include <linux/slab.h>
16#include <linux/swap.h>
17#include <linux/errno.h>
18#include <linux/time.h>
19#include <linux/timex.h>
20#include <linux/times.h>
21#include <linux/elf.h>
22#include <linux/msg.h>
23#include <linux/shm.h>
24#include <linux/smp.h>
25#include <linux/smp_lock.h>
26#include <linux/utsname.h>
27#include <linux/file.h>
28#include <linux/vfs.h>
29#include <linux/namei.h>
30#include <linux/socket.h>
31#include <linux/security.h>
32#include <linux/syscalls.h>
33
34#include <asm/ptrace.h>
35#include <asm/page.h>
36#include <asm/uaccess.h>
37#include <asm/inventory.h>
38
39/* 2,191 lines of complete and utter shit coming up... */
40
41extern int max_threads;
42
43/* The sysmp commands supported thus far. */
44#define MP_NPROCS 1 /* # processor in complex */
45#define MP_NAPROCS 2 /* # active processors in complex */
46#define MP_PGSIZE 14 /* Return system page size in v1. */
47
48asmlinkage int irix_sysmp(struct pt_regs *regs)
49{
50 unsigned long cmd;
51 int base = 0;
52 int error = 0;
53
54 if(regs->regs[2] == 1000)
55 base = 1;
56 cmd = regs->regs[base + 4];
57 switch(cmd) {
58 case MP_PGSIZE:
59 error = PAGE_SIZE;
60 break;
61 case MP_NPROCS:
62 case MP_NAPROCS:
63 error = num_online_cpus();
64 break;
65 default:
66 printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
67 current->comm, current->pid, (int)cmd);
68 error = -EINVAL;
69 break;
70 }
71
72 return error;
73}
74
75/* The prctl commands. */
76#define PR_MAXPROCS 1 /* Tasks/user. */
77#define PR_ISBLOCKED 2 /* If blocked, return 1. */
78#define PR_SETSTACKSIZE 3 /* Set largest task stack size. */
79#define PR_GETSTACKSIZE 4 /* Get largest task stack size. */
80#define PR_MAXPPROCS 5 /* Num parallel tasks. */
81#define PR_UNBLKONEXEC 6 /* When task exec/exit's, unblock. */
82#define PR_SETEXITSIG 8 /* When task exit's, set signal. */
83#define PR_RESIDENT 9 /* Make task unswappable. */
84#define PR_ATTACHADDR 10 /* (Re-)Connect a vma to a task. */
85#define PR_DETACHADDR 11 /* Disconnect a vma from a task. */
86#define PR_TERMCHILD 12 /* When parent sleeps with fishes, kill child. */
87#define PR_GETSHMASK 13 /* Get the sproc() share mask. */
88#define PR_GETNSHARE 14 /* Number of share group members. */
89#define PR_COREPID 15 /* Add task pid to name when it core. */
90#define PR_ATTACHADDRPERM 16 /* (Re-)Connect vma, with specified prot. */
91#define PR_PTHREADEXIT 17 /* Kill a pthread without prejudice. */
92
93asmlinkage int irix_prctl(struct pt_regs *regs)
94{
95 unsigned long cmd;
96 int error = 0, base = 0;
97
98 if (regs->regs[2] == 1000)
99 base = 1;
100 cmd = regs->regs[base + 4];
101 switch (cmd) {
102 case PR_MAXPROCS:
103 printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
104 current->comm, current->pid);
105 error = max_threads;
106 break;
107
108 case PR_ISBLOCKED: {
109 struct task_struct *task;
110
111 printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
112 current->comm, current->pid);
113 read_lock(&tasklist_lock);
114 task = find_task_by_pid(regs->regs[base + 5]);
115 error = -ESRCH;
116 if (error)
117 error = (task->run_list.next != NULL);
118 read_unlock(&tasklist_lock);
119 /* Can _your_ OS find this out that fast? */
120 break;
121 }
122
123 case PR_SETSTACKSIZE: {
124 long value = regs->regs[base + 5];
125
126 printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
127 current->comm, current->pid, (unsigned long) value);
128 if (value > RLIM_INFINITY)
129 value = RLIM_INFINITY;
130 if (capable(CAP_SYS_ADMIN)) {
131 task_lock(current->group_leader);
132 current->signal->rlim[RLIMIT_STACK].rlim_max =
133 current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
134 task_unlock(current->group_leader);
135 error = value;
136 break;
137 }
138 task_lock(current->group_leader);
139 if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
140 error = -EINVAL;
141 task_unlock(current->group_leader);
142 break;
143 }
144 current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
145 task_unlock(current->group_leader);
146 error = value;
147 break;
148 }
149
150 case PR_GETSTACKSIZE:
151 printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
152 current->comm, current->pid);
153 error = current->signal->rlim[RLIMIT_STACK].rlim_cur;
154 break;
155
156 case PR_MAXPPROCS:
157 printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
158 current->comm, current->pid);
159 error = 1;
160 break;
161
162 case PR_UNBLKONEXEC:
163 printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
164 current->comm, current->pid);
165 error = -EINVAL;
166 break;
167
168 case PR_SETEXITSIG:
169 printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
170 current->comm, current->pid);
171
172 /* We can probably play some game where we set the task
173 * exit_code to some non-zero value when this is requested,
174 * and check whether exit_code is already set in do_exit().
175 */
176 error = -EINVAL;
177 break;
178
179 case PR_RESIDENT:
180 printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
181 current->comm, current->pid);
182 error = 0; /* Compatibility indeed. */
183 break;
184
185 case PR_ATTACHADDR:
186 printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
187 current->comm, current->pid);
188 error = -EINVAL;
189 break;
190
191 case PR_DETACHADDR:
192 printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
193 current->comm, current->pid);
194 error = -EINVAL;
195 break;
196
197 case PR_TERMCHILD:
198 printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
199 current->comm, current->pid);
200 error = -EINVAL;
201 break;
202
203 case PR_GETSHMASK:
204 printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
205 current->comm, current->pid);
206 error = -EINVAL; /* Until I have the sproc() stuff in. */
207 break;
208
209 case PR_GETNSHARE:
210 error = 0; /* Until I have the sproc() stuff in. */
211 break;
212
213 case PR_COREPID:
214 printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
215 current->comm, current->pid);
216 error = -EINVAL;
217 break;
218
219 case PR_ATTACHADDRPERM:
220 printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
221 current->comm, current->pid);
222 error = -EINVAL;
223 break;
224
225 case PR_PTHREADEXIT:
226 printk("irix_prctl[%s:%d]: Wants PR_PTHREADEXIT\n",
227 current->comm, current->pid);
228 do_exit(regs->regs[base + 5]);
229
230 default:
231 printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
232 current->comm, current->pid, (int)cmd);
233 error = -EINVAL;
234 break;
235 }
236
237 return error;
238}
239
240#undef DEBUG_PROCGRPS
241
242extern unsigned long irix_mapelf(int fd, struct elf_phdr *user_phdrp, int cnt);
243extern int getrusage(struct task_struct *p, int who, struct rusage __user *ru);
244extern char *prom_getenv(char *name);
245extern long prom_setenv(char *name, char *value);
246
247/* The syssgi commands supported thus far. */
248#define SGI_SYSID 1 /* Return unique per-machine identifier. */
249#define SGI_INVENT 5 /* Fetch inventory */
250# define SGI_INV_SIZEOF 1
251# define SGI_INV_READ 2
252#define SGI_RDNAME 6 /* Return string name of a process. */
253#define SGI_SETNVRAM 8 /* Set PROM variable. */
254#define SGI_GETNVRAM 9 /* Get PROM variable. */
255#define SGI_SETPGID 21 /* Set process group id. */
256#define SGI_SYSCONF 22 /* POSIX sysconf garbage. */
257#define SGI_PATHCONF 24 /* POSIX sysconf garbage. */
258#define SGI_SETGROUPS 40 /* POSIX sysconf garbage. */
259#define SGI_GETGROUPS 41 /* POSIX sysconf garbage. */
260#define SGI_RUSAGE 56 /* BSD style rusage(). */
261#define SGI_SSYNC 62 /* Synchronous fs sync. */
262#define SGI_GETSID 65 /* SysVr4 get session id. */
263#define SGI_ELFMAP 68 /* Map an elf image. */
264#define SGI_TOSSTSAVE 108 /* Toss saved vma's. */
265#define SGI_FP_BCOPY 129 /* Should FPU bcopy be used on this machine? */
266#define SGI_PHYSP 1011 /* Translate virtual into physical page. */
267
268asmlinkage int irix_syssgi(struct pt_regs *regs)
269{
270 unsigned long cmd;
271 int retval, base = 0;
272
273 if (regs->regs[2] == 1000)
274 base = 1;
275
276 cmd = regs->regs[base + 4];
277 switch(cmd) {
278 case SGI_SYSID: {
279 char *buf = (char *) regs->regs[base + 5];
280
281 /* XXX Use ethernet addr.... */
282 retval = clear_user(buf, 64);
283 break;
284 }
285#if 0
286 case SGI_RDNAME: {
287 int pid = (int) regs->regs[base + 5];
288 char *buf = (char *) regs->regs[base + 6];
289 struct task_struct *p;
290 char tcomm[sizeof(current->comm)];
291
292 if (!access_ok(VERIFY_WRITE, buf, sizeof(tcomm))) {
293 retval = -EFAULT;
294 break;
295 }
296 read_lock(&tasklist_lock);
297 p = find_task_by_pid(pid);
298 if (!p) {
299 read_unlock(&tasklist_lock);
300 retval = -ESRCH;
301 break;
302 }
303 get_task_comm(tcomm, p);
304 read_unlock(&tasklist_lock);
305
306 /* XXX Need to check sizes. */
307 copy_to_user(buf, tcomm, sizeof(tcomm));
308 retval = 0;
309 break;
310 }
311
312 case SGI_GETNVRAM: {
313 char *name = (char *) regs->regs[base+5];
314 char *buf = (char *) regs->regs[base+6];
315 char *value;
316 return -EINVAL; /* til I fix it */
317 if (!access_ok(VERIFY_WRITE, buf, 128)) {
318 retval = -EFAULT;
319 break;
320 }
321 value = prom_getenv(name); /* PROM lock? */
322 if (!value) {
323 retval = -EINVAL;
324 break;
325 }
326 /* Do I strlen() for the length? */
327 copy_to_user(buf, value, 128);
328 retval = 0;
329 break;
330 }
331
332 case SGI_SETNVRAM: {
333 char *name = (char *) regs->regs[base+5];
334 char *value = (char *) regs->regs[base+6];
335 return -EINVAL; /* til I fix it */
336 retval = prom_setenv(name, value);
337 /* XXX make sure retval conforms to syssgi(2) */
338 printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
339 current->comm, current->pid, name, value, retval);
340/* if (retval == PROM_ENOENT)
341 retval = -ENOENT; */
342 break;
343 }
344#endif
345
346 case SGI_SETPGID: {
347#ifdef DEBUG_PROCGRPS
348 printk("[%s:%d] setpgid(%d, %d) ",
349 current->comm, current->pid,
350 (int) regs->regs[base + 5], (int)regs->regs[base + 6]);
351#endif
352 retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
353
354#ifdef DEBUG_PROCGRPS
355 printk("retval=%d\n", retval);
356#endif
357 }
358
359 case SGI_SYSCONF: {
360 switch(regs->regs[base + 5]) {
361 case 1:
362 retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
363 goto out;
364 case 2:
365 retval = max_threads;
366 goto out;
367 case 3:
368 retval = HZ;
369 goto out;
370 case 4:
371 retval = NGROUPS_MAX;
372 goto out;
373 case 5:
374 retval = NR_OPEN;
375 goto out;
376 case 6:
377 retval = 1;
378 goto out;
379 case 7:
380 retval = 1;
381 goto out;
382 case 8:
383 retval = 199009;
384 goto out;
385 case 11:
386 retval = PAGE_SIZE;
387 goto out;
388 case 12:
389 retval = 4;
390 goto out;
391 case 25:
392 case 26:
393 case 27:
394 case 28:
395 case 29:
396 case 30:
397 retval = 0;
398 goto out;
399 case 31:
400 retval = 32;
401 goto out;
402 default:
403 retval = -EINVAL;
404 goto out;
405 };
406 }
407
408 case SGI_SETGROUPS:
409 retval = sys_setgroups((int) regs->regs[base + 5],
410 (gid_t *) regs->regs[base + 6]);
411 break;
412
413 case SGI_GETGROUPS:
414 retval = sys_getgroups((int) regs->regs[base + 5],
415 (gid_t *) regs->regs[base + 6]);
416 break;
417
418 case SGI_RUSAGE: {
419 struct rusage *ru = (struct rusage *) regs->regs[base + 6];
420
421 switch((int) regs->regs[base + 5]) {
422 case 0:
423 /* rusage self */
424 retval = getrusage(current, RUSAGE_SELF, ru);
425 goto out;
426
427 case -1:
428 /* rusage children */
429 retval = getrusage(current, RUSAGE_CHILDREN, ru);
430 goto out;
431
432 default:
433 retval = -EINVAL;
434 goto out;
435 };
436 }
437
438 case SGI_SSYNC:
439 sys_sync();
440 retval = 0;
441 break;
442
443 case SGI_GETSID:
444#ifdef DEBUG_PROCGRPS
445 printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
446 (int) regs->regs[base + 5]);
447#endif
448 retval = sys_getsid(regs->regs[base + 5]);
449#ifdef DEBUG_PROCGRPS
450 printk("retval=%d\n", retval);
451#endif
452 break;
453
454 case SGI_ELFMAP:
455 retval = irix_mapelf((int) regs->regs[base + 5],
456 (struct elf_phdr *) regs->regs[base + 6],
457 (int) regs->regs[base + 7]);
458 break;
459
460 case SGI_TOSSTSAVE:
461 /* XXX We don't need to do anything? */
462 retval = 0;
463 break;
464
465 case SGI_FP_BCOPY:
466 retval = 0;
467 break;
468
469 case SGI_PHYSP: {
470 unsigned long addr = regs->regs[base + 5];
471 int *pageno = (int *) (regs->regs[base + 6]);
472 struct mm_struct *mm = current->mm;
473 pgd_t *pgdp;
474 pmd_t *pmdp;
475 pte_t *ptep;
476
477 if (!access_ok(VERIFY_WRITE, pageno, sizeof(int)))
478 return -EFAULT;
479
480 down_read(&mm->mmap_sem);
481 pgdp = pgd_offset(mm, addr);
482 pmdp = pmd_offset(pgdp, addr);
483 ptep = pte_offset(pmdp, addr);
484 retval = -EINVAL;
485 if (ptep) {
486 pte_t pte = *ptep;
487
488 if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
489 retval = put_user((pte_val(pte) & PAGE_MASK) >>
490 PAGE_SHIFT, pageno);
491 }
492 }
493 up_read(&mm->mmap_sem);
494 break;
495 }
496
497 case SGI_INVENT: {
498 int arg1 = (int) regs->regs [base + 5];
499 void *buffer = (void *) regs->regs [base + 6];
500 int count = (int) regs->regs [base + 7];
501
502 switch (arg1) {
503 case SGI_INV_SIZEOF:
504 retval = sizeof (inventory_t);
505 break;
506 case SGI_INV_READ:
507 retval = dump_inventory_to_user (buffer, count);
508 break;
509 default:
510 retval = -EINVAL;
511 }
512 break;
513 }
514
515 default:
516 printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
517 retval = -EINVAL;
518 break;
519 };
520
521out:
522 return retval;
523}
524
525asmlinkage int irix_gtime(struct pt_regs *regs)
526{
527 return get_seconds();
528}
529
530/*
531 * IRIX is completely broken... it returns 0 on success, otherwise
532 * ENOMEM.
533 */
534asmlinkage int irix_brk(unsigned long brk)
535{
536 unsigned long rlim;
537 unsigned long newbrk, oldbrk;
538 struct mm_struct *mm = current->mm;
539 int ret;
540
541 down_write(&mm->mmap_sem);
542 if (brk < mm->end_code) {
543 ret = -ENOMEM;
544 goto out;
545 }
546
547 newbrk = PAGE_ALIGN(brk);
548 oldbrk = PAGE_ALIGN(mm->brk);
549 if (oldbrk == newbrk) {
550 mm->brk = brk;
551 ret = 0;
552 goto out;
553 }
554
555 /*
556 * Always allow shrinking brk
557 */
558 if (brk <= mm->brk) {
559 mm->brk = brk;
560 do_munmap(mm, newbrk, oldbrk-newbrk);
561 ret = 0;
562 goto out;
563 }
564 /*
565 * Check against rlimit and stack..
566 */
567 rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
568 if (rlim >= RLIM_INFINITY)
569 rlim = ~0;
570 if (brk - mm->end_code > rlim) {
571 ret = -ENOMEM;
572 goto out;
573 }
574
575 /*
576 * Check against existing mmap mappings.
577 */
578 if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
579 ret = -ENOMEM;
580 goto out;
581 }
582
583 /*
2fd4ef85 584 * Ok, looks good - let it rip.
1da177e4 585 */
2fd4ef85 586 if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) {
1da177e4
LT		 587 ret = -ENOMEM;
588 goto out;
589 }
1da177e4 590 mm->brk = brk;
1da177e4
LT		 591 ret = 0;
592
593out:
594 up_write(&mm->mmap_sem);
595 return ret;
596}
597
598asmlinkage int irix_getpid(struct pt_regs *regs)
599{
600 regs->regs[3] = current->real_parent->pid;
601 return current->pid;
602}
603
604asmlinkage int irix_getuid(struct pt_regs *regs)
605{
606 regs->regs[3] = current->euid;
607 return current->uid;
608}
609
610asmlinkage int irix_getgid(struct pt_regs *regs)
611{
612 regs->regs[3] = current->egid;
613 return current->gid;
614}
615
616asmlinkage int irix_stime(int value)
617{
618 int err;
619 struct timespec tv;
620
621 tv.tv_sec = value;
622 tv.tv_nsec = 0;
623 err = security_settime(&tv, NULL);
624 if (err)
625 return err;
626
627 write_seqlock_irq(&xtime_lock);
628 xtime.tv_sec = value;
629 xtime.tv_nsec = 0;
b149ee22 630 ntp_clear();
1da177e4
LT		 631 write_sequnlock_irq(&xtime_lock);
632
633 return 0;
634}
635
636static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
637{
638 value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
639 value->tv_sec = jiffies / HZ;
640}
641
642static inline void getitimer_real(struct itimerval *value)
643{
644 register unsigned long val, interval;
645
646 interval = current->it_real_incr;
647 val = 0;
648 if (del_timer(&current->real_timer)) {
649 unsigned long now = jiffies;
650 val = current->real_timer.expires;
651 add_timer(&current->real_timer);
652 /* look out for negative/zero itimer.. */
653 if (val <= now)
654 val = now+1;
655 val -= now;
656 }
657 jiffiestotv(val, &value->it_value);
658 jiffiestotv(interval, &value->it_interval);
659}
660
661asmlinkage unsigned int irix_alarm(unsigned int seconds)
662{
663 struct itimerval it_new, it_old;
664 unsigned int oldalarm;
665
666 if (!seconds) {
667 getitimer_real(&it_old);
668 del_timer(&current->real_timer);
669 } else {
670 it_new.it_interval.tv_sec = it_new.it_interval.tv_usec = 0;
671 it_new.it_value.tv_sec = seconds;
672 it_new.it_value.tv_usec = 0;
673 do_setitimer(ITIMER_REAL, &it_new, &it_old);
674 }
675 oldalarm = it_old.it_value.tv_sec;
676 /*
677 * ehhh.. We can't return 0 if we have an alarm pending ...
678 * And we'd better return too much than too little anyway
679 */
680 if (it_old.it_value.tv_usec)
681 oldalarm++;
682
683 return oldalarm;
684}
685
686asmlinkage int irix_pause(void)
687{
688 current->state = TASK_INTERRUPTIBLE;
689 schedule();
690
691 return -EINTR;
692}
693
694/* XXX need more than this... */
695asmlinkage int irix_mount(char *dev_name, char *dir_name, unsigned long flags,
696 char *type, void *data, int datalen)
697{
698 printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
699 current->comm, current->pid,
700 dev_name, dir_name, flags, type, data, datalen);
701
702 return sys_mount(dev_name, dir_name, type, flags, data);
703}
704
705struct irix_statfs {
706 short f_type;
707 long f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
708 char f_fname[6], f_fpack[6];
709};
710
711asmlinkage int irix_statfs(const char *path, struct irix_statfs *buf,
712 int len, int fs_type)
713{
714 struct nameidata nd;
715 struct kstatfs kbuf;
716 int error, i;
717
718 /* We don't support this feature yet. */
719 if (fs_type) {
720 error = -EINVAL;
721 goto out;
722 }
723 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
724 error = -EFAULT;
725 goto out;
726 }
727 error = user_path_walk(path, &nd);
728 if (error)
729 goto out;
730
731 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
732 if (error)
733 goto dput_and_out;
734
735 __put_user(kbuf.f_type, &buf->f_type);
736 __put_user(kbuf.f_bsize, &buf->f_bsize);
737 __put_user(kbuf.f_frsize, &buf->f_frsize);
738 __put_user(kbuf.f_blocks, &buf->f_blocks);
739 __put_user(kbuf.f_bfree, &buf->f_bfree);
740 __put_user(kbuf.f_files, &buf->f_files);
741 __put_user(kbuf.f_ffree, &buf->f_ffree);
742 for (i = 0; i < 6; i++) {
743 __put_user(0, &buf->f_fname[i]);
744 __put_user(0, &buf->f_fpack[i]);
745 }
746 error = 0;
747
748dput_and_out:
749 path_release(&nd);
750out:
751 return error;
752}
753
754asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs *buf)
755{
756 struct kstatfs kbuf;
757 struct file *file;
758 int error, i;
759
760 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
761 error = -EFAULT;
762 goto out;
763 }
764 if (!(file = fget(fd))) {
765 error = -EBADF;
766 goto out;
767 }
768
769 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
770 if (error)
771 goto out_f;
772
773 __put_user(kbuf.f_type, &buf->f_type);
774 __put_user(kbuf.f_bsize, &buf->f_bsize);
775 __put_user(kbuf.f_frsize, &buf->f_frsize);
776 __put_user(kbuf.f_blocks, &buf->f_blocks);
777 __put_user(kbuf.f_bfree, &buf->f_bfree);
778 __put_user(kbuf.f_files, &buf->f_files);
779 __put_user(kbuf.f_ffree, &buf->f_ffree);
780 for(i = 0; i < 6; i++) {
781 __put_user(0, &buf->f_fname[i]);
782 __put_user(0, &buf->f_fpack[i]);
783 }
784
785out_f:
786 fput(file);
787out:
788 return error;
789}
790
791asmlinkage int irix_setpgrp(int flags)
792{
793 int error;
794
795#ifdef DEBUG_PROCGRPS
796 printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
797#endif
798 if(!flags)
799 error = process_group(current);
800 else
801 error = sys_setsid();
802#ifdef DEBUG_PROCGRPS
803 printk("returning %d\n", process_group(current));
804#endif
805
806 return error;
807}
808
809asmlinkage int irix_times(struct tms * tbuf)
810{
811 int err = 0;
812
813 if (tbuf) {
814 if (!access_ok(VERIFY_WRITE,tbuf,sizeof *tbuf))
815 return -EFAULT;
816 err |= __put_user(current->utime, &tbuf->tms_utime);
817 err |= __put_user(current->stime, &tbuf->tms_stime);
818 err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
819 err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
820 }
821
822 return err;
823}
824
825asmlinkage int irix_exec(struct pt_regs *regs)
826{
827 int error, base = 0;
828 char *filename;
829
830 if(regs->regs[2] == 1000)
831 base = 1;
832 filename = getname((char *) (long)regs->regs[base + 4]);
833 error = PTR_ERR(filename);
834 if (IS_ERR(filename))
835 return error;
836
837 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
838 (char **) 0, regs);
839 putname(filename);
840
841 return error;
842}
843
844asmlinkage int irix_exece(struct pt_regs *regs)
845{
846 int error, base = 0;
847 char *filename;
848
849 if (regs->regs[2] == 1000)
850 base = 1;
851 filename = getname((char *) (long)regs->regs[base + 4]);
852 error = PTR_ERR(filename);
853 if (IS_ERR(filename))
854 return error;
855 error = do_execve(filename, (char **) (long)regs->regs[base + 5],
856 (char **) (long)regs->regs[base + 6], regs);
857 putname(filename);
858
859 return error;
860}
861
862asmlinkage unsigned long irix_gethostid(void)
863{
864 printk("[%s:%d]: irix_gethostid() called...\n",
865 current->comm, current->pid);
866
867 return -EINVAL;
868}
869
870asmlinkage unsigned long irix_sethostid(unsigned long val)
871{
872 printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
873 current->comm, current->pid, val);
874
875 return -EINVAL;
876}
877
878asmlinkage int irix_socket(int family, int type, int protocol)
879{
880 switch(type) {
881 case 1:
882 type = SOCK_DGRAM;
883 break;
884
885 case 2:
886 type = SOCK_STREAM;
887 break;
888
889 case 3:
890 type = 9; /* Invalid... */
891 break;
892
893 case 4:
894 type = SOCK_RAW;
895 break;
896
897 case 5:
898 type = SOCK_RDM;
899 break;
900
901 case 6:
902 type = SOCK_SEQPACKET;
903 break;
904
905 default:
906 break;
907 }
908
909 return sys_socket(family, type, protocol);
910}
911
912asmlinkage int irix_getdomainname(char *name, int len)
913{
914 int error;
915
916 if (!access_ok(VERIFY_WRITE, name, len))
917 return -EFAULT;
918
919 down_read(&uts_sem);
920 if (len > __NEW_UTS_LEN)
921 len = __NEW_UTS_LEN;
922 error = 0;
923 if (copy_to_user(name, system_utsname.domainname, len))
924 error = -EFAULT;
925 up_read(&uts_sem);
926
927 return error;
928}
929
930asmlinkage unsigned long irix_getpagesize(void)
931{
932 return PAGE_SIZE;
933}
934
935asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
936 unsigned long arg2, unsigned long arg3,
937 unsigned long arg4)
938{
939 switch (opcode) {
940 case 0:
941 return sys_msgget((key_t) arg0, (int) arg1);
942 case 1:
943 return sys_msgctl((int) arg0, (int) arg1, (struct msqid_ds *)arg2);
944 case 2:
945 return sys_msgrcv((int) arg0, (struct msgbuf *) arg1,
946 (size_t) arg2, (long) arg3, (int) arg4);
947 case 3:
948 return sys_msgsnd((int) arg0, (struct msgbuf *) arg1,
949 (size_t) arg2, (int) arg3);
950 default:
951 return -EINVAL;
952 }
953}
954
955asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
956 unsigned long arg2, unsigned long arg3)
957{
958 switch (opcode) {
959 case 0:
960 return do_shmat((int) arg0, (char *)arg1, (int) arg2,
961 (unsigned long *) arg3);
962 case 1:
963 return sys_shmctl((int)arg0, (int)arg1, (struct shmid_ds *)arg2);
964 case 2:
965 return sys_shmdt((char *)arg0);
966 case 3:
967 return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
968 default:
969 return -EINVAL;
970 }
971}
972
973asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
974 unsigned long arg2, int arg3)
975{
976 switch (opcode) {
977 case 0:
978 return sys_semctl((int) arg0, (int) arg1, (int) arg2,
979 (union semun) arg3);
980 case 1:
981 return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
982 case 2:
983 return sys_semop((int) arg0, (struct sembuf *)arg1,
984 (unsigned int) arg2);
985 default:
986 return -EINVAL;
987 }
988}
989
990static inline loff_t llseek(struct file *file, loff_t offset, int origin)
991{
992 loff_t (*fn)(struct file *, loff_t, int);
993 loff_t retval;
994
995 fn = default_llseek;
996 if (file->f_op && file->f_op->llseek)
997 fn = file->f_op->llseek;
998 lock_kernel();
999 retval = fn(file, offset, origin);
1000 unlock_kernel();
1001 return retval;
1002}
1003
1004asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
1005 int origin)
1006{
1007 int retval;
1008 struct file * file;
1009 loff_t offset;
1010
1011 retval = -EBADF;
1012 file = fget(fd);
1013 if (!file)
1014 goto bad;
1015 retval = -EINVAL;
1016 if (origin > 2)
1017 goto out_putf;
1018
1019 offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
1020 retval = (int) offset;
1021
1022out_putf:
1023 fput(file);
1024bad:
1025 return retval;
1026}
1027
1028asmlinkage int irix_sginap(int ticks)
1029{
310b587e 1030 schedule_timeout_interruptible(ticks);
1da177e4
LT		 1031 return 0;
1032}
1033
1034asmlinkage int irix_sgikopt(char *istring, char *ostring, int len)
1035{
1036 return -EINVAL;
1037}
1038
1039asmlinkage int irix_gettimeofday(struct timeval *tv)
1040{
1041 time_t sec;
1042 long nsec, seq;
1043 int err;
1044
1045 if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
1046 return -EFAULT;
1047
1048 do {
1049 seq = read_seqbegin(&xtime_lock);
1050 sec = xtime.tv_sec;
1051 nsec = xtime.tv_nsec;
1052 } while (read_seqretry(&xtime_lock, seq));
1053
1054 err = __put_user(sec, &tv->tv_sec);
1055 err |= __put_user((nsec / 1000), &tv->tv_usec);
1056
1057 return err;
1058}
1059
1060#define IRIX_MAP_AUTOGROW 0x40
1061
1062asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
1063 int flags, int fd, off_t offset)
1064{
1065 struct file *file = NULL;
1066 unsigned long retval;
1067
1068 if (!(flags & MAP_ANONYMOUS)) {
1069 if (!(file = fget(fd)))
1070 return -EBADF;
1071
1072 /* Ok, bad taste hack follows, try to think in something else
1073 * when reading this. */
1074 if (flags & IRIX_MAP_AUTOGROW) {
1075 unsigned long old_pos;
1076 long max_size = offset + len;
1077
1078 if (max_size > file->f_dentry->d_inode->i_size) {
1079 old_pos = sys_lseek (fd, max_size - 1, 0);
1080 sys_write (fd, "", 1);
1081 sys_lseek (fd, old_pos, 0);
1082 }
1083 }
1084 }
1085
1086 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1087
1088 down_write(&current->mm->mmap_sem);
1089 retval = do_mmap(file, addr, len, prot, flags, offset);
1090 up_write(&current->mm->mmap_sem);
1091 if (file)
1092 fput(file);
1093
1094 return retval;
1095}
1096
1097asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
1098{
1099 printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
1100 current->comm, current->pid, addr, len, behavior);
1101
1102 return -EINVAL;
1103}
1104
1105asmlinkage int irix_pagelock(char *addr, int len, int op)
1106{
1107 printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
1108 current->comm, current->pid, addr, len, op);
1109
1110 return -EINVAL;
1111}
1112
1113asmlinkage int irix_quotactl(struct pt_regs *regs)
1114{
1115 printk("[%s:%d] Wheee.. irix_quotactl()\n",
1116 current->comm, current->pid);
1117
1118 return -EINVAL;
1119}
1120
1121asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
1122{
1123 int error;
1124
1125#ifdef DEBUG_PROCGRPS
1126 printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
1127 pid, pgrp);
1128#endif
1129 if(!pid)
1130 pid = current->pid;
1131
1132 /* Wheee, weird sysv thing... */
1133 if ((pgrp == 0) && (pid == current->pid))
1134 error = sys_setsid();
1135 else
1136 error = sys_setpgid(pid, pgrp);
1137
1138#ifdef DEBUG_PROCGRPS
1139 printk("error = %d\n", error);
1140#endif
1141
1142 return error;
1143}
1144
1145asmlinkage int irix_systeminfo(int cmd, char *buf, int cnt)
1146{
1147 printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
1148 current->comm, current->pid, cmd, buf, cnt);
1149
1150 return -EINVAL;
1151}
1152
1153struct iuname {
1154 char sysname[257], nodename[257], release[257];
1155 char version[257], machine[257];
1156 char m_type[257], base_rel[257];
1157 char _unused0[257], _unused1[257], _unused2[257];
1158 char _unused3[257], _unused4[257], _unused5[257];
1159};
1160
1161asmlinkage int irix_uname(struct iuname *buf)
1162{
1163 down_read(&uts_sem);
1164 if (copy_to_user(system_utsname.sysname, buf->sysname, 65)
1165 || copy_to_user(system_utsname.nodename, buf->nodename, 65)
1166 || copy_to_user(system_utsname.release, buf->release, 65)
1167 || copy_to_user(system_utsname.version, buf->version, 65)
1168 || copy_to_user(system_utsname.machine, buf->machine, 65)) {
1169 return -EFAULT;
1170 }
1171 up_read(&uts_sem);
1172
1173 return 1;
1174}
1175
1176#undef DEBUG_XSTAT
1177
1178static int irix_xstat32_xlate(struct kstat *stat, void *ubuf)
1179{
1180 struct xstat32 {
1181 u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
1182 u32 st_rdev, st_pad2[2], st_size, st_pad3;
1183 u32 st_atime0, st_atime1;
1184 u32 st_mtime0, st_mtime1;
1185 u32 st_ctime0, st_ctime1;
1186 u32 st_blksize, st_blocks;
1187 char st_fstype[16];
1188 u32 st_pad4[8];
1189 } ub;
1190
1191 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1192 return -EOVERFLOW;
1193 ub.st_dev = sysv_encode_dev(stat->dev);
1194 ub.st_ino = stat->ino;
1195 ub.st_mode = stat->mode;
1196 ub.st_nlink = stat->nlink;
1197 SET_UID(ub.st_uid, stat->uid);
1198 SET_GID(ub.st_gid, stat->gid);
1199 ub.st_rdev = sysv_encode_dev(stat->rdev);
1200#if BITS_PER_LONG == 32
1201 if (stat->size > MAX_NON_LFS)
1202 return -EOVERFLOW;
1203#endif
1204 ub.st_size = stat->size;
1205 ub.st_atime0 = stat->atime.tv_sec;
1206 ub.st_atime1 = stat->atime.tv_nsec;
1207 ub.st_mtime0 = stat->mtime.tv_sec;
1208 ub.st_mtime1 = stat->atime.tv_nsec;
1209 ub.st_ctime0 = stat->ctime.tv_sec;
1210 ub.st_ctime1 = stat->atime.tv_nsec;
1211 ub.st_blksize = stat->blksize;
1212 ub.st_blocks = stat->blocks;
1213 strcpy (ub.st_fstype, "efs");
1214
1215 return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
1216}
1217
1218static int irix_xstat64_xlate(struct kstat *stat, void *ubuf)
1219{
1220 struct xstat64 {
1221 u32 st_dev; s32 st_pad1[3];
1222 unsigned long long st_ino;
1223 u32 st_mode;
1224 u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
1225 s32 st_pad2[2];
1226 long long st_size;
1227 s32 st_pad3;
1228 struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
1229 s32 st_blksize;
1230 long long st_blocks;
1231 char st_fstype[16];
1232 s32 st_pad4[8];
1233 } ks;
1234
1235 if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
1236 return -EOVERFLOW;
1237
1238 ks.st_dev = sysv_encode_dev(stat->dev);
1239 ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
1240 ks.st_ino = (unsigned long long) stat->ino;
1241 ks.st_mode = (u32) stat->mode;
1242 ks.st_nlink = (u32) stat->nlink;
1243 ks.st_uid = (s32) stat->uid;
1244 ks.st_gid = (s32) stat->gid;
1245 ks.st_rdev = sysv_encode_dev (stat->rdev);
1246 ks.st_pad2[0] = ks.st_pad2[1] = 0;
1247 ks.st_size = (long long) stat->size;
1248 ks.st_pad3 = 0;
1249
1250 /* XXX hackety hack... */
1251 ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
1252 ks.st_atime.tv_nsec = stat->atime.tv_nsec;
1253 ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
1254 ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
1255 ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
1256 ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
1257
1258 ks.st_blksize = (s32) stat->blksize;
1259 ks.st_blocks = (long long) stat->blocks;
1260 memset(ks.st_fstype, 0, 16);
1261 ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
1262 ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
1263
1264 /* Now write it all back. */
1265 return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
1266}
1267
1268asmlinkage int irix_xstat(int version, char *filename, struct stat *statbuf)
1269{
1270 int retval;
1271 struct kstat stat;
1272
1273#ifdef DEBUG_XSTAT
1274 printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
1275 current->comm, current->pid, version, filename, statbuf);
1276#endif
1277
1278 retval = vfs_stat(filename, &stat);
1279 if (!retval) {
1280 switch(version) {
1281 case 2:
1282 retval = irix_xstat32_xlate(&stat, statbuf);
1283 break;
1284 case 3:
1285 retval = irix_xstat64_xlate(&stat, statbuf);
1286 break;
1287 default:
1288 retval = -EINVAL;
1289 }
1290 }
1291 return retval;
1292}
1293
1294asmlinkage int irix_lxstat(int version, char *filename, struct stat *statbuf)
1295{
1296 int error;
1297 struct kstat stat;
1298
1299#ifdef DEBUG_XSTAT
1300 printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
1301 current->comm, current->pid, version, filename, statbuf);
1302#endif
1303
1304 error = vfs_lstat(filename, &stat);
1305
1306 if (!error) {
1307 switch (version) {
1308 case 2:
1309 error = irix_xstat32_xlate(&stat, statbuf);
1310 break;
1311 case 3:
1312 error = irix_xstat64_xlate(&stat, statbuf);
1313 break;
1314 default:
1315 error = -EINVAL;
1316 }
1317 }
1318 return error;
1319}
1320
1321asmlinkage int irix_fxstat(int version, int fd, struct stat *statbuf)
1322{
1323 int error;
1324 struct kstat stat;
1325
1326#ifdef DEBUG_XSTAT
1327 printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
1328 current->comm, current->pid, version, fd, statbuf);
1329#endif
1330
1331 error = vfs_fstat(fd, &stat);
1332 if (!error) {
1333 switch (version) {
1334 case 2:
1335 error = irix_xstat32_xlate(&stat, statbuf);
1336 break;
1337 case 3:
1338 error = irix_xstat64_xlate(&stat, statbuf);
1339 break;
1340 default:
1341 error = -EINVAL;
1342 }
1343 }
1344 return error;
1345}
1346
1347asmlinkage int irix_xmknod(int ver, char *filename, int mode, unsigned dev)
1348{
1349 int retval;
1350 printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
1351 current->comm, current->pid, ver, filename, mode, dev);
1352
1353 switch(ver) {
1354 case 2:
1355 /* shouldn't we convert here as well as on stat()? */
1356 retval = sys_mknod(filename, mode, dev);
1357 break;
1358
1359 default:
1360 retval = -EINVAL;
1361 break;
1362 };
1363
1364 return retval;
1365}
1366
1367asmlinkage int irix_swapctl(int cmd, char *arg)
1368{
1369 printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
1370 current->comm, current->pid, cmd, arg);
1371
1372 return -EINVAL;
1373}
1374
1375struct irix_statvfs {
1376 u32 f_bsize; u32 f_frsize; u32 f_blocks;
1377 u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
1378 u32 f_fsid; char f_basetype[16];
1379 u32 f_flag; u32 f_namemax;
1380 char f_fstr[32]; u32 f_filler[16];
1381};
1382
1383asmlinkage int irix_statvfs(char *fname, struct irix_statvfs *buf)
1384{
1385 struct nameidata nd;
1386 struct kstatfs kbuf;
1387 int error, i;
1388
1389 printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
1390 current->comm, current->pid, fname, buf);
1391 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1392 error = -EFAULT;
1393 goto out;
1394 }
1395 error = user_path_walk(fname, &nd);
1396 if (error)
1397 goto out;
1398 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1399 if (error)
1400 goto dput_and_out;
1401
1402 __put_user(kbuf.f_bsize, &buf->f_bsize);
1403 __put_user(kbuf.f_frsize, &buf->f_frsize);
1404 __put_user(kbuf.f_blocks, &buf->f_blocks);
1405 __put_user(kbuf.f_bfree, &buf->f_bfree);
1406 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1407 __put_user(kbuf.f_files, &buf->f_files);
1408 __put_user(kbuf.f_ffree, &buf->f_ffree);
1409 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1410#ifdef __MIPSEB__
1411 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1412#else
1413 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1414#endif
1415 for (i = 0; i < 16; i++)
1416 __put_user(0, &buf->f_basetype[i]);
1417 __put_user(0, &buf->f_flag);
1418 __put_user(kbuf.f_namelen, &buf->f_namemax);
1419 for (i = 0; i < 32; i++)
1420 __put_user(0, &buf->f_fstr[i]);
1421
1422 error = 0;
1423
1424dput_and_out:
1425 path_release(&nd);
1426out:
1427 return error;
1428}
1429
1430asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs *buf)
1431{
1432 struct kstatfs kbuf;
1433 struct file *file;
1434 int error, i;
1435
1436 printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
1437 current->comm, current->pid, fd, buf);
1438
1439 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1440 error = -EFAULT;
1441 goto out;
1442 }
1443 if (!(file = fget(fd))) {
1444 error = -EBADF;
1445 goto out;
1446 }
1447 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1448 if (error)
1449 goto out_f;
1450
1451 __put_user(kbuf.f_bsize, &buf->f_bsize);
1452 __put_user(kbuf.f_frsize, &buf->f_frsize);
1453 __put_user(kbuf.f_blocks, &buf->f_blocks);
1454 __put_user(kbuf.f_bfree, &buf->f_bfree);
1455 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1456 __put_user(kbuf.f_files, &buf->f_files);
1457 __put_user(kbuf.f_ffree, &buf->f_ffree);
1458 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1459#ifdef __MIPSEB__
1460 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1461#else
1462 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1463#endif
1464 for(i = 0; i < 16; i++)
1465 __put_user(0, &buf->f_basetype[i]);
1466 __put_user(0, &buf->f_flag);
1467 __put_user(kbuf.f_namelen, &buf->f_namemax);
1468 __clear_user(&buf->f_fstr, sizeof(buf->f_fstr));
1469
1470out_f:
1471 fput(file);
1472out:
1473 return error;
1474}
1475
1476asmlinkage int irix_priocntl(struct pt_regs *regs)
1477{
1478 printk("[%s:%d] Wheee.. irix_priocntl()\n",
1479 current->comm, current->pid);
1480
1481 return -EINVAL;
1482}
1483
1484asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
1485{
1486 printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
1487 current->comm, current->pid, pid, sig, code, val);
1488
1489 return -EINVAL;
1490}
1491
1492asmlinkage int irix_truncate64(char *name, int pad, int size1, int size2)
1493{
1494 int retval;
1495
1496 if (size1) {
1497 retval = -EINVAL;
1498 goto out;
1499 }
1500 retval = sys_truncate(name, size2);
1501
1502out:
1503 return retval;
1504}
1505
1506asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
1507{
1508 int retval;
1509
1510 if (size1) {
1511 retval = -EINVAL;
1512 goto out;
1513 }
1514 retval = sys_ftruncate(fd, size2);
1515
1516out:
1517 return retval;
1518}
1519
1520asmlinkage int irix_mmap64(struct pt_regs *regs)
1521{
1522 int len, prot, flags, fd, off1, off2, error, base = 0;
1523 unsigned long addr, pgoff, *sp;
1524 struct file *file = NULL;
1525
1526 if (regs->regs[2] == 1000)
1527 base = 1;
1528 sp = (unsigned long *) (regs->regs[29] + 16);
1529 addr = regs->regs[base + 4];
1530 len = regs->regs[base + 5];
1531 prot = regs->regs[base + 6];
1532 if (!base) {
1533 flags = regs->regs[base + 7];
1534 if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long)))) {
1535 error = -EFAULT;
1536 goto out;
1537 }
1538 fd = sp[0];
1539 __get_user(off1, &sp[1]);
1540 __get_user(off2, &sp[2]);
1541 } else {
1542 if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long)))) {
1543 error = -EFAULT;
1544 goto out;
1545 }
1546 __get_user(flags, &sp[0]);
1547 __get_user(fd, &sp[1]);
1548 __get_user(off1, &sp[2]);
1549 __get_user(off2, &sp[3]);
1550 }
1551
1552 if (off1 & PAGE_MASK) {
1553 error = -EOVERFLOW;
1554 goto out;
1555 }
1556
1557 pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
1558
1559 if (!(flags & MAP_ANONYMOUS)) {
1560 if (!(file = fget(fd))) {
1561 error = -EBADF;
1562 goto out;
1563 }
1564
1565 /* Ok, bad taste hack follows, try to think in something else
1566 when reading this */
1567 if (flags & IRIX_MAP_AUTOGROW) {
1568 unsigned long old_pos;
1569 long max_size = off2 + len;
1570
1571 if (max_size > file->f_dentry->d_inode->i_size) {
1572 old_pos = sys_lseek (fd, max_size - 1, 0);
1573 sys_write (fd, "", 1);
1574 sys_lseek (fd, old_pos, 0);
1575 }
1576 }
1577 }
1578
1579 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1580
1581 down_write(&current->mm->mmap_sem);
1582 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1583 up_write(&current->mm->mmap_sem);
1584
1585 if (file)
1586 fput(file);
1587
1588out:
1589 return error;
1590}
1591
1592asmlinkage int irix_dmi(struct pt_regs *regs)
1593{
1594 printk("[%s:%d] Wheee.. irix_dmi()\n",
1595 current->comm, current->pid);
1596
1597 return -EINVAL;
1598}
1599
1600asmlinkage int irix_pread(int fd, char *buf, int cnt, int off64,
1601 int off1, int off2)
1602{
1603 printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
1604 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1605
1606 return -EINVAL;
1607}
1608
1609asmlinkage int irix_pwrite(int fd, char *buf, int cnt, int off64,
1610 int off1, int off2)
1611{
1612 printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
1613 current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
1614
1615 return -EINVAL;
1616}
1617
1618asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
1619 unsigned long arg2, unsigned long arg3,
1620 unsigned long arg4, unsigned long arg5)
1621{
1622 printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
1623 "%08lx,%08lx)\n",
1624 current->comm, current->pid, cmd, arg0, arg1, arg2,
1625 arg3, arg4, arg5);
1626
1627 return -EINVAL;
1628}
1629
1630struct irix_statvfs64 {
1631 u32 f_bsize; u32 f_frsize;
1632 u64 f_blocks; u64 f_bfree; u64 f_bavail;
1633 u64 f_files; u64 f_ffree; u64 f_favail;
1634 u32 f_fsid;
1635 char f_basetype[16];
1636 u32 f_flag; u32 f_namemax;
1637 char f_fstr[32];
1638 u32 f_filler[16];
1639};
1640
1641asmlinkage int irix_statvfs64(char *fname, struct irix_statvfs64 *buf)
1642{
1643 struct nameidata nd;
1644 struct kstatfs kbuf;
1645 int error, i;
1646
1647 printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
1648 current->comm, current->pid, fname, buf);
1649 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
1650 error = -EFAULT;
1651 goto out;
1652 }
1653 error = user_path_walk(fname, &nd);
1654 if (error)
1655 goto out;
1656 error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
1657 if (error)
1658 goto dput_and_out;
1659
1660 __put_user(kbuf.f_bsize, &buf->f_bsize);
1661 __put_user(kbuf.f_frsize, &buf->f_frsize);
1662 __put_user(kbuf.f_blocks, &buf->f_blocks);
1663 __put_user(kbuf.f_bfree, &buf->f_bfree);
1664 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1665 __put_user(kbuf.f_files, &buf->f_files);
1666 __put_user(kbuf.f_ffree, &buf->f_ffree);
1667 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1668#ifdef __MIPSEB__
1669 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1670#else
1671 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1672#endif
1673 for(i = 0; i < 16; i++)
1674 __put_user(0, &buf->f_basetype[i]);
1675 __put_user(0, &buf->f_flag);
1676 __put_user(kbuf.f_namelen, &buf->f_namemax);
1677 for(i = 0; i < 32; i++)
1678 __put_user(0, &buf->f_fstr[i]);
1679
1680 error = 0;
1681
1682dput_and_out:
1683 path_release(&nd);
1684out:
1685 return error;
1686}
1687
1688asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs *buf)
1689{
1690 struct kstatfs kbuf;
1691 struct file *file;
1692 int error, i;
1693
1694 printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
1695 current->comm, current->pid, fd, buf);
1696
1697 if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
1698 error = -EFAULT;
1699 goto out;
1700 }
1701 if (!(file = fget(fd))) {
1702 error = -EBADF;
1703 goto out;
1704 }
1705 error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
1706 if (error)
1707 goto out_f;
1708
1709 __put_user(kbuf.f_bsize, &buf->f_bsize);
1710 __put_user(kbuf.f_frsize, &buf->f_frsize);
1711 __put_user(kbuf.f_blocks, &buf->f_blocks);
1712 __put_user(kbuf.f_bfree, &buf->f_bfree);
1713 __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
1714 __put_user(kbuf.f_files, &buf->f_files);
1715 __put_user(kbuf.f_ffree, &buf->f_ffree);
1716 __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
1717#ifdef __MIPSEB__
1718 __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
1719#else
1720 __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
1721#endif
1722 for(i = 0; i < 16; i++)
1723 __put_user(0, &buf->f_basetype[i]);
1724 __put_user(0, &buf->f_flag);
1725 __put_user(kbuf.f_namelen, &buf->f_namemax);
1726 __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i]));
1727
1728out_f:
1729 fput(file);
1730out:
1731 return error;
1732}
1733
1734asmlinkage int irix_getmountid(char *fname, unsigned long *midbuf)
1735{
1736 int err = 0;
1737
1738 printk("[%s:%d] irix_getmountid(%s, %p)\n",
1739 current->comm, current->pid, fname, midbuf);
1740 if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
1741 return -EFAULT;
1742
1743 /*
1744 * The idea with this system call is that when trying to determine
1745 * 'pwd' and it's a toss-up for some reason, userland can use the
1746 * fsid of the filesystem to try and make the right decision, but
1747 * we don't have this so for now. XXX
1748 */
1749 err |= __put_user(0, &midbuf[0]);
1750 err |= __put_user(0, &midbuf[1]);
1751 err |= __put_user(0, &midbuf[2]);
1752 err |= __put_user(0, &midbuf[3]);
1753
1754 return err;
1755}
1756
1757asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
1758 unsigned long arg, unsigned long sp, int slen)
1759{
1760 printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
1761 current->comm, current->pid, entry, mask, arg, sp, slen);
1762
1763 return -EINVAL;
1764}
1765
1766#undef DEBUG_GETDENTS
1767
1768struct irix_dirent32 {
1769 u32 d_ino;
1770 u32 d_off;
1771 unsigned short d_reclen;
1772 char d_name[1];
1773};
1774
1775struct irix_dirent32_callback {
1776 struct irix_dirent32 *current_dir;
1777 struct irix_dirent32 *previous;
1778 int count;
1779 int error;
1780};
1781
1782#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
1783#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
1784
1785static int irix_filldir32(void *__buf, const char *name, int namlen,
1786 loff_t offset, ino_t ino, unsigned int d_type)
1787{
1788 struct irix_dirent32 *dirent;
1789 struct irix_dirent32_callback *buf =
1790 (struct irix_dirent32_callback *)__buf;
1791 unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
1792
1793#ifdef DEBUG_GETDENTS
1794 printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
1795 reclen, namlen, buf->count);
1796#endif
1797 buf->error = -EINVAL; /* only used if we fail.. */
1798 if (reclen > buf->count)
1799 return -EINVAL;
1800 dirent = buf->previous;
1801 if (dirent)
1802 __put_user(offset, &dirent->d_off);
1803 dirent = buf->current_dir;
1804 buf->previous = dirent;
1805 __put_user(ino, &dirent->d_ino);
1806 __put_user(reclen, &dirent->d_reclen);
1807 copy_to_user(dirent->d_name, name, namlen);
1808 __put_user(0, &dirent->d_name[namlen]);
1809 ((char *) dirent) += reclen;
1810 buf->current_dir = dirent;
1811 buf->count -= reclen;
1812
1813 return 0;
1814}
1815
1816asmlinkage int irix_ngetdents(unsigned int fd, void * dirent,
1817 unsigned int count, int *eob)
1818{
1819 struct file *file;
1820 struct irix_dirent32 *lastdirent;
1821 struct irix_dirent32_callback buf;
1822 int error;
1823
1824#ifdef DEBUG_GETDENTS
1825 printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
1826 current->pid, fd, dirent, count, eob);
1827#endif
1828 error = -EBADF;
1829 file = fget(fd);
1830 if (!file)
1831 goto out;
1832
1833 buf.current_dir = (struct irix_dirent32 *) dirent;
1834 buf.previous = NULL;
1835 buf.count = count;
1836 buf.error = 0;
1837
1838 error = vfs_readdir(file, irix_filldir32, &buf);
1839 if (error < 0)
1840 goto out_putf;
1841
1842 error = buf.error;
1843 lastdirent = buf.previous;
1844 if (lastdirent) {
1845 put_user(file->f_pos, &lastdirent->d_off);
1846 error = count - buf.count;
1847 }
1848
1849 if (put_user(0, eob) < 0) {
1850 error = -EFAULT;
1851 goto out_putf;
1852 }
1853
1854#ifdef DEBUG_GETDENTS
1855 printk("eob=%d returning %d\n", *eob, count - buf.count);
1856#endif
1857 error = count - buf.count;
1858
1859out_putf:
1860 fput(file);
1861out:
1862 return error;
1863}
1864
1865struct irix_dirent64 {
1866 u64 d_ino;
1867 u64 d_off;
1868 unsigned short d_reclen;
1869 char d_name[1];
1870};
1871
1872struct irix_dirent64_callback {
1873 struct irix_dirent64 *curr;
1874 struct irix_dirent64 *previous;
1875 int count;
1876 int error;
1877};
1878
1879#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
1880#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
1881
1882static int irix_filldir64(void * __buf, const char * name, int namlen,
1883 loff_t offset, ino_t ino, unsigned int d_type)
1884{
1885 struct irix_dirent64 *dirent;
1886 struct irix_dirent64_callback * buf =
1887 (struct irix_dirent64_callback *) __buf;
1888 unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
1889
1890 buf->error = -EINVAL; /* only used if we fail.. */
1891 if (reclen > buf->count)
1892 return -EINVAL;
1893 dirent = buf->previous;
1894 if (dirent)
1895 __put_user(offset, &dirent->d_off);
1896 dirent = buf->curr;
1897 buf->previous = dirent;
1898 __put_user(ino, &dirent->d_ino);
1899 __put_user(reclen, &dirent->d_reclen);
1900 __copy_to_user(dirent->d_name, name, namlen);
1901 __put_user(0, &dirent->d_name[namlen]);
1902 ((char *) dirent) += reclen;
1903 buf->curr = dirent;
1904 buf->count -= reclen;
1905
1906 return 0;
1907}
1908
1909asmlinkage int irix_getdents64(int fd, void *dirent, int cnt)
1910{
1911 struct file *file;
1912 struct irix_dirent64 *lastdirent;
1913 struct irix_dirent64_callback buf;
1914 int error;
1915
1916#ifdef DEBUG_GETDENTS
1917 printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
1918 current->pid, fd, dirent, cnt);
1919#endif
1920 error = -EBADF;
1921 if (!(file = fget(fd)))
1922 goto out;
1923
1924 error = -EFAULT;
1925 if (!access_ok(VERIFY_WRITE, dirent, cnt))
1926 goto out_f;
1927
1928 error = -EINVAL;
1929 if (cnt < (sizeof(struct irix_dirent64) + 255))
1930 goto out_f;
1931
1932 buf.curr = (struct irix_dirent64 *) dirent;
1933 buf.previous = NULL;
1934 buf.count = cnt;
1935 buf.error = 0;
1936 error = vfs_readdir(file, irix_filldir64, &buf);
1937 if (error < 0)
1938 goto out_f;
1939 lastdirent = buf.previous;
1940 if (!lastdirent) {
1941 error = buf.error;
1942 goto out_f;
1943 }
1944 lastdirent->d_off = (u64) file->f_pos;
1945#ifdef DEBUG_GETDENTS
1946 printk("returning %d\n", cnt - buf.count);
1947#endif
1948 error = cnt - buf.count;
1949
1950out_f:
1951 fput(file);
1952out:
1953 return error;
1954}
1955
1956asmlinkage int irix_ngetdents64(int fd, void *dirent, int cnt, int *eob)
1957{
1958 struct file *file;
1959 struct irix_dirent64 *lastdirent;
1960 struct irix_dirent64_callback buf;
1961 int error;
1962
1963#ifdef DEBUG_GETDENTS
1964 printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
1965 current->pid, fd, dirent, cnt);
1966#endif
1967 error = -EBADF;
1968 if (!(file = fget(fd)))
1969 goto out;
1970
1971 error = -EFAULT;
1972 if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
1973 !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
1974 goto out_f;
1975
1976 error = -EINVAL;
1977 if (cnt < (sizeof(struct irix_dirent64) + 255))
1978 goto out_f;
1979
1980 *eob = 0;
1981 buf.curr = (struct irix_dirent64 *) dirent;
1982 buf.previous = NULL;
1983 buf.count = cnt;
1984 buf.error = 0;
1985 error = vfs_readdir(file, irix_filldir64, &buf);
1986 if (error < 0)
1987 goto out_f;
1988 lastdirent = buf.previous;
1989 if (!lastdirent) {
1990 error = buf.error;
1991 goto out_f;
1992 }
1993 lastdirent->d_off = (u64) file->f_pos;
1994#ifdef DEBUG_GETDENTS
1995 printk("eob=%d returning %d\n", *eob, cnt - buf.count);
1996#endif
1997 error = cnt - buf.count;
1998
1999out_f:
2000 fput(file);
2001out:
2002 return error;
2003}
2004
2005asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
2006{
2007 int retval;
2008
2009 switch (op) {
2010 case 1:
2011 /* Reboot */
2012 printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
2013 current->comm, current->pid);
2014 retval = -EINVAL;
2015 goto out;
2016
2017 case 2:
2018 /* Shutdown */
2019 printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
2020 current->comm, current->pid);
2021 retval = -EINVAL;
2022 goto out;
2023
2024 case 4:
2025 /* Remount-root */
2026 printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
2027 current->comm, current->pid);
2028 retval = -EINVAL;
2029 goto out;
2030
2031 case 8:
2032 /* Kill all tasks. */
2033 printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
2034 current->comm, current->pid);
2035 retval = -EINVAL;
2036 goto out;
2037
2038 case 256:
2039 /* Set magic mushrooms... */
2040 printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
2041 current->comm, current->pid, (int) func);
2042 retval = -EINVAL;
2043 goto out;
2044
2045 default:
2046 printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
2047 current->comm, current->pid, (int) op);
2048 retval = -EINVAL;
2049 goto out;
2050 };
2051
2052out:
2053 return retval;
2054}
2055
2056asmlinkage int irix_utssys(char *inbuf, int arg, int type, char *outbuf)
2057{
2058 int retval;
2059
2060 switch(type) {
2061 case 0:
2062 /* uname() */
2063 retval = irix_uname((struct iuname *)inbuf);
2064 goto out;
2065
2066 case 2:
2067 /* ustat() */
2068 printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
2069 current->comm, current->pid);
2070 retval = -EINVAL;
2071 goto out;
2072
2073 case 3:
2074 /* fusers() */
2075 printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
2076 current->comm, current->pid);
2077 retval = -EINVAL;
2078 goto out;
2079
2080 default:
2081 printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
2082 current->comm, current->pid, (int) type);
2083 retval = -EINVAL;
2084 goto out;
2085 }
2086
2087out:
2088 return retval;
2089}
2090
2091#undef DEBUG_FCNTL
2092
2093#define IRIX_F_ALLOCSP 10
2094
2095asmlinkage int irix_fcntl(int fd, int cmd, int arg)
2096{
2097 int retval;
2098
2099#ifdef DEBUG_FCNTL
2100 printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
2101 current->pid, fd, cmd, arg);
2102#endif
2103 if (cmd == IRIX_F_ALLOCSP){
2104 return 0;
2105 }
2106 retval = sys_fcntl(fd, cmd, arg);
2107#ifdef DEBUG_FCNTL
2108 printk("%d\n", retval);
2109#endif
2110 return retval;
2111}
2112
2113asmlinkage int irix_ulimit(int cmd, int arg)
2114{
2115 int retval;
2116
2117 switch(cmd) {
2118 case 1:
2119 printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
2120 current->comm, current->pid);
2121 retval = -EINVAL;
2122 goto out;
2123
2124 case 2:
2125 printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
2126 current->comm, current->pid);
2127 retval = -EINVAL;
2128 goto out;
2129
2130 case 3:
2131 printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
2132 current->comm, current->pid);
2133 retval = -EINVAL;
2134 goto out;
2135
2136 case 4:
2137#if 0
2138 printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
2139 current->comm, current->pid);
2140 retval = -EINVAL;
2141 goto out;
2142#endif
2143 retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
2144 goto out;
2145
2146 case 5:
2147 printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
2148 current->comm, current->pid);
2149 retval = -EINVAL;
2150 goto out;
2151
2152 default:
2153 printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
2154 current->comm, current->pid, cmd);
2155 retval = -EINVAL;
2156 goto out;
2157 }
2158out:
2159 return retval;
2160}
2161
2162asmlinkage int irix_unimp(struct pt_regs *regs)
2163{
2164 printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
2165 "a3=%08lx\n", current->comm, current->pid,
2166 (int) regs->regs[2], (int) regs->regs[3],
2167 regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
2168
2169 return -ENOSYS;
2170}
Linux 6.x block layer and io_uring tree(s)