2 * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
4 * Copyright (C) 2001 IBM
5 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
6 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
8 * These routines maintain argument size conversion between 32bit and 64bit
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
17 #include <linux/kernel.h>
18 #include <linux/sched.h>
21 #include <linux/file.h>
22 #include <linux/signal.h>
23 #include <linux/resource.h>
24 #include <linux/times.h>
25 #include <linux/utsname.h>
26 #include <linux/smp.h>
27 #include <linux/smp_lock.h>
28 #include <linux/sem.h>
29 #include <linux/msg.h>
30 #include <linux/shm.h>
31 #include <linux/poll.h>
32 #include <linux/personality.h>
33 #include <linux/stat.h>
34 #include <linux/mman.h>
36 #include <linux/syscalls.h>
37 #include <linux/unistd.h>
38 #include <linux/sysctl.h>
39 #include <linux/binfmts.h>
40 #include <linux/security.h>
41 #include <linux/compat.h>
42 #include <linux/ptrace.h>
43 #include <linux/elf.h>
44 #include <linux/ipc.h>
46 #include <asm/ptrace.h>
47 #include <asm/types.h>
48 #include <asm/uaccess.h>
49 #include <asm/unistd.h>
50 #include <asm/semaphore.h>
52 #include <asm/mmu_context.h>
53 #include <asm/ppc-pci.h>
54 #include <asm/syscalls.h>
56 struct old_linux_dirent32 {
59 unsigned short d_namlen;
63 struct readdir_callback32 {
64 struct old_linux_dirent32 __user * dirent;
68 static int fillonedir(void * __buf, const char * name, int namlen,
69 off_t offset, u64 ino, unsigned int d_type)
71 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
72 struct old_linux_dirent32 __user * dirent;
78 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
82 put_user(d_ino, &dirent->d_ino);
83 put_user(offset, &dirent->d_offset);
84 put_user(namlen, &dirent->d_namlen);
85 copy_to_user(dirent->d_name, name, namlen);
86 put_user(0, dirent->d_name + namlen);
90 asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
94 struct readdir_callback32 buf;
103 error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
114 asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
115 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
119 return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
122 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
127 if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
128 !new_valid_dev(stat->rdev))
132 if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
135 err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT;
136 err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
137 err |= __put_user(ino, &statbuf->st_ino);
138 err |= __put_user(stat->mode, &statbuf->st_mode);
139 err |= __put_user(stat->nlink, &statbuf->st_nlink);
140 err |= __put_user(stat->uid, &statbuf->st_uid);
141 err |= __put_user(stat->gid, &statbuf->st_gid);
142 err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
143 err |= __put_user(stat->size, &statbuf->st_size);
144 err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
145 err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
146 err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
147 err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
148 err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
149 err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
150 err |= __put_user(stat->blksize, &statbuf->st_blksize);
151 err |= __put_user(stat->blocks, &statbuf->st_blocks);
152 err |= __put_user(0, &statbuf->__unused4[0]);
153 err |= __put_user(0, &statbuf->__unused4[1]);
158 /* Note: it is necessary to treat option as an unsigned int,
159 * with the corresponding cast to a signed int to insure that the
160 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
161 * and the register representation of a signed int (msr in 64-bit mode) is performed.
163 asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2)
165 return sys_sysfs((int)option, arg1, arg2);
168 asmlinkage long compat_sys_pause(void)
170 current->state = TASK_INTERRUPTIBLE;
173 return -ERESTARTNOHAND;
176 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
180 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
182 if (__get_user(o->tv_sec, &i->tv_sec))
184 if (__get_user(usec, &i->tv_usec))
186 o->tv_nsec = usec * 1000;
190 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
192 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
193 (__put_user(i->tv_sec, &o->tv_sec) |
194 __put_user(i->tv_usec, &o->tv_usec)));
200 /* Translations due to time_t size differences. Which affects all
201 sorts of things, like timeval and itimerval. */
202 extern struct timezone sys_tz;
204 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
208 do_gettimeofday(&ktv);
209 if (put_tv32(tv, &ktv))
213 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
222 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
228 if (get_ts32(&kts, tv))
232 if (copy_from_user(&ktz, tz, sizeof(ktz)))
236 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
239 #ifdef CONFIG_SYSVIPC
240 long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
245 version = call >> 16; /* hack for backward compatibility */
252 /* sign extend semid */
253 return compat_sys_semtimedop((int)first,
254 compat_ptr(ptr), second,
256 /* else fall through for normal semop() */
258 /* struct sembuf is the same on 32 and 64bit :)) */
259 /* sign extend semid */
260 return sys_semtimedop((int)first, compat_ptr(ptr), second,
263 /* sign extend key, nsems */
264 return sys_semget((int)first, (int)second, third);
266 /* sign extend semid, semnum */
267 return compat_sys_semctl((int)first, (int)second, third,
271 /* sign extend msqid */
272 return compat_sys_msgsnd((int)first, (int)second, third,
275 /* sign extend msqid, msgtyp */
276 return compat_sys_msgrcv((int)first, second, (int)fifth,
277 third, version, compat_ptr(ptr));
279 /* sign extend key */
280 return sys_msgget((int)first, second);
282 /* sign extend msqid */
283 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
286 /* sign extend shmid */
287 return compat_sys_shmat((int)first, second, third, version,
290 return sys_shmdt(compat_ptr(ptr));
292 /* sign extend key_t */
293 return sys_shmget((int)first, second, third);
295 /* sign extend shmid */
296 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
306 /* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
307 * with the corresponding cast to a signed int to insure that the
308 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
309 * and the register representation of a signed int (msr in 64-bit mode) is performed.
311 asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
313 mm_segment_t old_fs = get_fs();
318 if (offset && get_user(of, offset))
321 /* The __user pointer cast is valid because of the set_fs() */
323 up = offset ? (off_t __user *) &of : NULL;
324 ret = sys_sendfile((int)out_fd, (int)in_fd, up, count);
327 if (offset && put_user(of, offset))
333 asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
335 mm_segment_t old_fs = get_fs();
340 if (offset && get_user(lof, offset))
343 /* The __user pointer cast is valid because of the set_fs() */
345 up = offset ? (loff_t __user *) &lof : NULL;
346 ret = sys_sendfile64(out_fd, in_fd, up, count);
349 if (offset && put_user(lof, offset))
355 long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
356 unsigned long a3, unsigned long a4, unsigned long a5,
357 struct pt_regs *regs)
362 filename = getname((char __user *) a0);
363 error = PTR_ERR(filename);
364 if (IS_ERR(filename))
366 flush_fp_to_thread(current);
367 flush_altivec_to_thread(current);
369 error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
377 /* Note: it is necessary to treat option as an unsigned int,
378 * with the corresponding cast to a signed int to insure that the
379 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
380 * and the register representation of a signed int (msr in 64-bit mode) is performed.
382 asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
384 return sys_prctl((int)option,
385 (unsigned long) arg2,
386 (unsigned long) arg3,
387 (unsigned long) arg4,
388 (unsigned long) arg5);
391 /* Note: it is necessary to treat pid as an unsigned int,
392 * with the corresponding cast to a signed int to insure that the
393 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
394 * and the register representation of a signed int (msr in 64-bit mode) is performed.
396 asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
400 mm_segment_t old_fs = get_fs ();
402 /* The __user pointer cast is valid because of the set_fs() */
404 ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t);
406 if (put_compat_timespec(&t, interval))
411 /* Note: it is necessary to treat mode as an unsigned int,
412 * with the corresponding cast to a signed int to insure that the
413 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
414 * and the register representation of a signed int (msr in 64-bit mode) is performed.
416 asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
418 return sys_access(filename, (int)mode);
422 /* Note: it is necessary to treat mode as an unsigned int,
423 * with the corresponding cast to a signed int to insure that the
424 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
425 * and the register representation of a signed int (msr in 64-bit mode) is performed.
427 asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode)
429 return sys_creat(pathname, (int)mode);
433 /* Note: it is necessary to treat pid and options as unsigned ints,
434 * with the corresponding cast to a signed int to insure that the
435 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
436 * and the register representation of a signed int (msr in 64-bit mode) is performed.
438 asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
440 return sys_waitpid((int)pid, stat_addr, (int)options);
444 /* Note: it is necessary to treat gidsetsize as an unsigned int,
445 * with the corresponding cast to a signed int to insure that the
446 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
447 * and the register representation of a signed int (msr in 64-bit mode) is performed.
449 asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist)
451 return sys_getgroups((int)gidsetsize, grouplist);
455 /* Note: it is necessary to treat pid as an unsigned int,
456 * with the corresponding cast to a signed int to insure that the
457 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
458 * and the register representation of a signed int (msr in 64-bit mode) is performed.
460 asmlinkage long compat_sys_getpgid(u32 pid)
462 return sys_getpgid((int)pid);
467 /* Note: it is necessary to treat pid as an unsigned int,
468 * with the corresponding cast to a signed int to insure that the
469 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
470 * and the register representation of a signed int (msr in 64-bit mode) is performed.
472 asmlinkage long compat_sys_getsid(u32 pid)
474 return sys_getsid((int)pid);
478 /* Note: it is necessary to treat pid and sig as unsigned ints,
479 * with the corresponding cast to a signed int to insure that the
480 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
481 * and the register representation of a signed int (msr in 64-bit mode) is performed.
483 asmlinkage long compat_sys_kill(u32 pid, u32 sig)
485 return sys_kill((int)pid, (int)sig);
489 /* Note: it is necessary to treat mode as an unsigned int,
490 * with the corresponding cast to a signed int to insure that the
491 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
492 * and the register representation of a signed int (msr in 64-bit mode) is performed.
494 asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode)
496 return sys_mkdir(pathname, (int)mode);
499 long compat_sys_nice(u32 increment)
501 /* sign extend increment */
502 return sys_nice((int)increment);
505 off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
508 return sys_lseek(fd, (int)offset, origin);
511 /* Note: it is necessary to treat bufsiz as an unsigned int,
512 * with the corresponding cast to a signed int to insure that the
513 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
514 * and the register representation of a signed int (msr in 64-bit mode) is performed.
516 asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz)
518 return sys_readlink(path, buf, (int)bufsiz);
521 /* Note: it is necessary to treat option as an unsigned int,
522 * with the corresponding cast to a signed int to insure that the
523 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
524 * and the register representation of a signed int (msr in 64-bit mode) is performed.
526 asmlinkage long compat_sys_sched_get_priority_max(u32 policy)
528 return sys_sched_get_priority_max((int)policy);
532 /* Note: it is necessary to treat policy as an unsigned int,
533 * with the corresponding cast to a signed int to insure that the
534 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
535 * and the register representation of a signed int (msr in 64-bit mode) is performed.
537 asmlinkage long compat_sys_sched_get_priority_min(u32 policy)
539 return sys_sched_get_priority_min((int)policy);
543 /* Note: it is necessary to treat pid as an unsigned int,
544 * with the corresponding cast to a signed int to insure that the
545 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
546 * and the register representation of a signed int (msr in 64-bit mode) is performed.
548 asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param)
550 return sys_sched_getparam((int)pid, param);
554 /* Note: it is necessary to treat pid as an unsigned int,
555 * with the corresponding cast to a signed int to insure that the
556 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
557 * and the register representation of a signed int (msr in 64-bit mode) is performed.
559 asmlinkage long compat_sys_sched_getscheduler(u32 pid)
561 return sys_sched_getscheduler((int)pid);
565 /* Note: it is necessary to treat pid as an unsigned int,
566 * with the corresponding cast to a signed int to insure that the
567 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
568 * and the register representation of a signed int (msr in 64-bit mode) is performed.
570 asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param)
572 return sys_sched_setparam((int)pid, param);
576 /* Note: it is necessary to treat pid and policy as unsigned ints,
577 * with the corresponding cast to a signed int to insure that the
578 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
579 * and the register representation of a signed int (msr in 64-bit mode) is performed.
581 asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
583 return sys_sched_setscheduler((int)pid, (int)policy, param);
587 /* Note: it is necessary to treat len as an unsigned int,
588 * with the corresponding cast to a signed int to insure that the
589 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
590 * and the register representation of a signed int (msr in 64-bit mode) is performed.
592 asmlinkage long compat_sys_setdomainname(char __user *name, u32 len)
594 return sys_setdomainname(name, (int)len);
598 /* Note: it is necessary to treat gidsetsize as an unsigned int,
599 * with the corresponding cast to a signed int to insure that the
600 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
601 * and the register representation of a signed int (msr in 64-bit mode) is performed.
603 asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist)
605 return sys_setgroups((int)gidsetsize, grouplist);
609 asmlinkage long compat_sys_sethostname(char __user *name, u32 len)
611 /* sign extend len */
612 return sys_sethostname(name, (int)len);
616 /* Note: it is necessary to treat pid and pgid as unsigned ints,
617 * with the corresponding cast to a signed int to insure that the
618 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
619 * and the register representation of a signed int (msr in 64-bit mode) is performed.
621 asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid)
623 return sys_setpgid((int)pid, (int)pgid);
626 long compat_sys_getpriority(u32 which, u32 who)
628 /* sign extend which and who */
629 return sys_getpriority((int)which, (int)who);
632 long compat_sys_setpriority(u32 which, u32 who, u32 niceval)
634 /* sign extend which, who and niceval */
635 return sys_setpriority((int)which, (int)who, (int)niceval);
638 long compat_sys_ioprio_get(u32 which, u32 who)
640 /* sign extend which and who */
641 return sys_ioprio_get((int)which, (int)who);
644 long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio)
646 /* sign extend which, who and ioprio */
647 return sys_ioprio_set((int)which, (int)who, (int)ioprio);
650 /* Note: it is necessary to treat newmask as an unsigned int,
651 * with the corresponding cast to a signed int to insure that the
652 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
653 * and the register representation of a signed int (msr in 64-bit mode) is performed.
655 asmlinkage long compat_sys_ssetmask(u32 newmask)
657 return sys_ssetmask((int) newmask);
660 asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len)
662 /* sign extend len */
663 return sys_syslog(type, buf, (int)len);
667 /* Note: it is necessary to treat mask as an unsigned int,
668 * with the corresponding cast to a signed int to insure that the
669 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
670 * and the register representation of a signed int (msr in 64-bit mode) is performed.
672 asmlinkage long compat_sys_umask(u32 mask)
674 return sys_umask((int)mask);
677 #ifdef CONFIG_SYSCTL_SYSCALL
678 struct __sysctl_args32 {
688 asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args)
690 struct __sysctl_args32 tmp;
693 size_t __user *oldlenp = NULL;
694 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
696 if (copy_from_user(&tmp, args, sizeof(tmp)))
699 if (tmp.oldval && tmp.oldlenp) {
700 /* Duh, this is ugly and might not work if sysctl_args
701 is in read-only memory, but do_sysctl does indirectly
702 a lot of uaccess in both directions and we'd have to
703 basically copy the whole sysctl.c here, and
704 glibc's __sysctl uses rw memory for the structure
706 oldlenp = (size_t __user *)addr;
707 if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
708 put_user(oldlen, oldlenp))
713 error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
714 compat_ptr(tmp.oldval), oldlenp,
715 compat_ptr(tmp.newval), tmp.newlen);
719 if (get_user(oldlen, oldlenp) ||
720 put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
723 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
729 unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
730 unsigned long prot, unsigned long flags,
731 unsigned long fd, unsigned long pgoff)
733 /* This should remain 12 even if PAGE_SIZE changes */
734 return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
737 long compat_sys_tgkill(u32 tgid, u32 pid, int sig)
739 /* sign extend tgid, pid */
740 return sys_tgkill((int)tgid, (int)pid, sig);
745 * The 32 bit ABI passes long longs in an odd even register pair.
748 compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
749 u32 reg6, u32 poshi, u32 poslo)
751 return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
754 compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
755 u32 reg6, u32 poshi, u32 poslo)
757 return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
760 compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
762 return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
765 asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
766 unsigned long high, unsigned long low)
768 return sys_truncate(path, (high << 32) | low);
771 asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
772 u32 lenhi, u32 lenlo)
774 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
775 ((loff_t)lenhi << 32) | lenlo);
778 asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
781 return sys_ftruncate(fd, (high << 32) | low);
784 long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
787 return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
791 long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
792 size_t len, int advice)
794 return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
798 asmlinkage long compat_sys_add_key(const char __user *_type,
799 const char __user *_description,
800 const void __user *_payload,
804 return sys_add_key(_type, _description, _payload, plen, ringid);
807 asmlinkage long compat_sys_request_key(const char __user *_type,
808 const char __user *_description,
809 const char __user *_callout_info,
812 return sys_request_key(_type, _description, _callout_info, destringid);
815 asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags,
816 unsigned offset_hi, unsigned offset_lo,
817 unsigned nbytes_hi, unsigned nbytes_lo)
819 loff_t offset = ((loff_t)offset_hi << 32) | offset_lo;
820 loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo;
822 return sys_sync_file_range(fd, offset, nbytes, flags);