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Diffstat (limited to 'arch/sparc/kernel/sys_sparc32.c')
-rw-r--r--arch/sparc/kernel/sys_sparc32.c682
1 files changed, 682 insertions, 0 deletions
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
new file mode 100644
index 000000000000..e800503879e4
--- /dev/null
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -0,0 +1,682 @@
+/* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997, 2007 David S. Miller (davem@davemloft.net)
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/capability.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/signal.h>
+#include <linux/resource.h>
+#include <linux/times.h>
+#include <linux/utsname.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/nfs_fs.h>
+#include <linux/quota.h>
+#include <linux/module.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/syscall.h>
+#include <linux/poll.h>
+#include <linux/personality.h>
+#include <linux/stat.h>
+#include <linux/filter.h>
+#include <linux/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/icmpv6.h>
+#include <linux/syscalls.h>
+#include <linux/sysctl.h>
+#include <linux/binfmts.h>
+#include <linux/dnotify.h>
+#include <linux/security.h>
+#include <linux/compat.h>
+#include <linux/vfs.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/ptrace.h>
+
+#include <asm/types.h>
+#include <asm/uaccess.h>
+#include <asm/fpumacro.h>
+#include <asm/mmu_context.h>
+#include <asm/compat_signal.h>
+
+#ifdef CONFIG_SYSVIPC
+asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
+{
+ int version;
+
+ version = call >> 16; /* hack for backward compatibility */
+ call &= 0xffff;
+
+ switch (call) {
+ case SEMTIMEDOP:
+ if (fifth)
+ /* sign extend semid */
+ return compat_sys_semtimedop((int)first,
+ compat_ptr(ptr), second,
+ compat_ptr(fifth));
+ /* else fall through for normal semop() */
+ case SEMOP:
+ /* struct sembuf is the same on 32 and 64bit :)) */
+ /* sign extend semid */
+ return sys_semtimedop((int)first, compat_ptr(ptr), second,
+ NULL);
+ case SEMGET:
+ /* sign extend key, nsems */
+ return sys_semget((int)first, (int)second, third);
+ case SEMCTL:
+ /* sign extend semid, semnum */
+ return compat_sys_semctl((int)first, (int)second, third,
+ compat_ptr(ptr));
+
+ case MSGSND:
+ /* sign extend msqid */
+ return compat_sys_msgsnd((int)first, (int)second, third,
+ compat_ptr(ptr));
+ case MSGRCV:
+ /* sign extend msqid, msgtyp */
+ return compat_sys_msgrcv((int)first, second, (int)fifth,
+ third, version, compat_ptr(ptr));
+ case MSGGET:
+ /* sign extend key */
+ return sys_msgget((int)first, second);
+ case MSGCTL:
+ /* sign extend msqid */
+ return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
+
+ case SHMAT:
+ /* sign extend shmid */
+ return compat_sys_shmat((int)first, second, third, version,
+ compat_ptr(ptr));
+ case SHMDT:
+ return sys_shmdt(compat_ptr(ptr));
+ case SHMGET:
+ /* sign extend key_t */
+ return sys_shmget((int)first, second, third);
+ case SHMCTL:
+ /* sign extend shmid */
+ return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
+
+ default:
+ return -ENOSYS;
+ };
+
+ return -ENOSYS;
+}
+#endif
+
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+{
+ if ((int)high < 0)
+ return -EINVAL;
+ else
+ return sys_truncate(path, (high << 32) | low);
+}
+
+asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+{
+ if ((int)high < 0)
+ return -EINVAL;
+ else
+ return sys_ftruncate(fd, (high << 32) | low);
+}
+
+static int cp_compat_stat64(struct kstat *stat,
+ struct compat_stat64 __user *statbuf)
+{
+ int err;
+
+ err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
+ err |= put_user(stat->ino, &statbuf->st_ino);
+ err |= put_user(stat->mode, &statbuf->st_mode);
+ err |= put_user(stat->nlink, &statbuf->st_nlink);
+ err |= put_user(stat->uid, &statbuf->st_uid);
+ err |= put_user(stat->gid, &statbuf->st_gid);
+ err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
+ err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
+ err |= put_user(stat->size, &statbuf->st_size);
+ err |= put_user(stat->blksize, &statbuf->st_blksize);
+ err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
+ err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
+ err |= put_user(stat->blocks, &statbuf->st_blocks);
+ err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
+ err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+ err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+ err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+ err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+ err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+ err |= put_user(0, &statbuf->__unused4);
+ err |= put_user(0, &statbuf->__unused5);
+
+ return err;
+}
+
+asmlinkage long compat_sys_stat64(char __user * filename,
+ struct compat_stat64 __user *statbuf)
+{
+ struct kstat stat;
+ int error = vfs_stat(filename, &stat);
+
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
+ return error;
+}
+
+asmlinkage long compat_sys_lstat64(char __user * filename,
+ struct compat_stat64 __user *statbuf)
+{
+ struct kstat stat;
+ int error = vfs_lstat(filename, &stat);
+
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
+ return error;
+}
+
+asmlinkage long compat_sys_fstat64(unsigned int fd,
+ struct compat_stat64 __user * statbuf)
+{
+ struct kstat stat;
+ int error = vfs_fstat(fd, &stat);
+
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
+ return error;
+}
+
+asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
+ struct compat_stat64 __user * statbuf, int flag)
+{
+ struct kstat stat;
+ int error = -EINVAL;
+
+ if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+ goto out;
+
+ if (flag & AT_SYMLINK_NOFOLLOW)
+ error = vfs_lstat_fd(dfd, filename, &stat);
+ else
+ error = vfs_stat_fd(dfd, filename, &stat);
+
+ if (!error)
+ error = cp_compat_stat64(&stat, statbuf);
+
+out:
+ return error;
+}
+
+asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
+{
+ return sys_sysfs(option, arg1, arg2);
+}
+
+asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
+{
+ struct timespec t;
+ int ret;
+ mm_segment_t old_fs = get_fs ();
+
+ set_fs (KERNEL_DS);
+ ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
+ set_fs (old_fs);
+ if (put_compat_timespec(&t, interval))
+ return -EFAULT;
+ return ret;
+}
+
+asmlinkage long compat_sys_rt_sigprocmask(int how,
+ compat_sigset_t __user *set,
+ compat_sigset_t __user *oset,
+ compat_size_t sigsetsize)
+{
+ sigset_t s;
+ compat_sigset_t s32;
+ int ret;
+ mm_segment_t old_fs = get_fs();
+
+ if (set) {
+ if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ switch (_NSIG_WORDS) {
+ case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
+ case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
+ case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
+ case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
+ }
+ }
+ set_fs (KERNEL_DS);
+ ret = sys_rt_sigprocmask(how,
+ set ? (sigset_t __user *) &s : NULL,
+ oset ? (sigset_t __user *) &s : NULL,
+ sigsetsize);
+ set_fs (old_fs);
+ if (ret) return ret;
+ if (oset) {
+ switch (_NSIG_WORDS) {
+ case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
+ case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
+ case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
+ case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
+ }
+ if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ }
+ return 0;
+}
+
+asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
+ compat_size_t sigsetsize)
+{
+ sigset_t s;
+ compat_sigset_t s32;
+ int ret;
+ mm_segment_t old_fs = get_fs();
+
+ set_fs (KERNEL_DS);
+ ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
+ set_fs (old_fs);
+ if (!ret) {
+ switch (_NSIG_WORDS) {
+ case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
+ case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
+ case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
+ case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
+ }
+ if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ }
+ return ret;
+}
+
+asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
+ struct compat_siginfo __user *uinfo)
+{
+ siginfo_t info;
+ int ret;
+ mm_segment_t old_fs = get_fs();
+
+ if (copy_siginfo_from_user32(&info, uinfo))
+ return -EFAULT;
+
+ set_fs (KERNEL_DS);
+ ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
+ set_fs (old_fs);
+ return ret;
+}
+
+asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
+ struct old_sigaction32 __user *oact)
+{
+ struct k_sigaction new_ka, old_ka;
+ int ret;
+
+ WARN_ON_ONCE(sig >= 0);
+ sig = -sig;
+
+ if (act) {
+ compat_old_sigset_t mask;
+ u32 u_handler, u_restorer;
+
+ ret = get_user(u_handler, &act->sa_handler);
+ new_ka.sa.sa_handler = compat_ptr(u_handler);
+ ret |= __get_user(u_restorer, &act->sa_restorer);
+ new_ka.sa.sa_restorer = compat_ptr(u_restorer);
+ ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+ ret |= __get_user(mask, &act->sa_mask);
+ if (ret)
+ return ret;
+ new_ka.ka_restorer = NULL;
+ siginitset(&new_ka.sa.sa_mask, mask);
+ }
+
+ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+ if (!ret && oact) {
+ ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+ ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
+ ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+ ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+ }
+
+ return ret;
+}
+
+asmlinkage long compat_sys_rt_sigaction(int sig,
+ struct sigaction32 __user *act,
+ struct sigaction32 __user *oact,
+ void __user *restorer,
+ compat_size_t sigsetsize)
+{
+ struct k_sigaction new_ka, old_ka;
+ int ret;
+ compat_sigset_t set32;
+
+ /* XXX: Don't preclude handling different sized sigset_t's. */
+ if (sigsetsize != sizeof(compat_sigset_t))
+ return -EINVAL;
+
+ if (act) {
+ u32 u_handler, u_restorer;
+
+ new_ka.ka_restorer = restorer;
+ ret = get_user(u_handler, &act->sa_handler);
+ new_ka.sa.sa_handler = compat_ptr(u_handler);
+ ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
+ switch (_NSIG_WORDS) {
+ case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
+ case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
+ case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
+ case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
+ }
+ ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+ ret |= __get_user(u_restorer, &act->sa_restorer);
+ new_ka.sa.sa_restorer = compat_ptr(u_restorer);
+ if (ret)
+ return -EFAULT;
+ }
+
+ ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+ if (!ret && oact) {
+ switch (_NSIG_WORDS) {
+ case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
+ case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
+ case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
+ case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
+ }
+ ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+ ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
+ ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+ ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
+ if (ret)
+ ret = -EFAULT;
+ }
+
+ return ret;
+}
+
+/*
+ * sparc32_execve() executes a new program after the asm stub has set
+ * things up for us. This should basically do what I want it to.
+ */
+asmlinkage long sparc32_execve(struct pt_regs *regs)
+{
+ int error, base = 0;
+ char *filename;
+
+ /* User register window flush is done by entry.S */
+
+ /* Check for indirect call. */
+ if ((u32)regs->u_regs[UREG_G1] == 0)
+ base = 1;
+
+ filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
+ error = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ goto out;
+
+ error = compat_do_execve(filename,
+ compat_ptr(regs->u_regs[base + UREG_I1]),
+ compat_ptr(regs->u_regs[base + UREG_I2]), regs);
+
+ putname(filename);
+
+ if (!error) {
+ fprs_write(0);
+ current_thread_info()->xfsr[0] = 0;
+ current_thread_info()->fpsaved[0] = 0;
+ regs->tstate &= ~TSTATE_PEF;
+ }
+out:
+ return error;
+}
+
+#ifdef CONFIG_MODULES
+
+asmlinkage long sys32_init_module(void __user *umod, u32 len,
+ const char __user *uargs)
+{
+ return sys_init_module(umod, len, uargs);
+}
+
+asmlinkage long sys32_delete_module(const char __user *name_user,
+ unsigned int flags)
+{
+ return sys_delete_module(name_user, flags);
+}
+
+#else /* CONFIG_MODULES */
+
+asmlinkage long sys32_init_module(const char __user *name_user,
+ struct module __user *mod_user)
+{
+ return -ENOSYS;
+}
+
+asmlinkage long sys32_delete_module(const char __user *name_user)
+{
+ return -ENOSYS;
+}
+
+#endif /* CONFIG_MODULES */
+
+asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+ char __user *ubuf,
+ compat_size_t count,
+ unsigned long poshi,
+ unsigned long poslo)
+{
+ return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
+}
+
+asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+ char __user *ubuf,
+ compat_size_t count,
+ unsigned long poshi,
+ unsigned long poslo)
+{
+ return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
+}
+
+asmlinkage long compat_sys_readahead(int fd,
+ unsigned long offhi,
+ unsigned long offlo,
+ compat_size_t count)
+{
+ return sys_readahead(fd, (offhi << 32) | offlo, count);
+}
+
+long compat_sys_fadvise64(int fd,
+ unsigned long offhi,
+ unsigned long offlo,
+ compat_size_t len, int advice)
+{
+ return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
+}
+
+long compat_sys_fadvise64_64(int fd,
+ unsigned long offhi, unsigned long offlo,
+ unsigned long lenhi, unsigned long lenlo,
+ int advice)
+{
+ return sys_fadvise64_64(fd,
+ (offhi << 32) | offlo,
+ (lenhi << 32) | lenlo,
+ advice);
+}
+
+asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
+ compat_off_t __user *offset,
+ compat_size_t count)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+ off_t of;
+
+ if (offset && get_user(of, offset))
+ return -EFAULT;
+
+ set_fs(KERNEL_DS);
+ ret = sys_sendfile(out_fd, in_fd,
+ offset ? (off_t __user *) &of : NULL,
+ count);
+ set_fs(old_fs);
+
+ if (offset && put_user(of, offset))
+ return -EFAULT;
+
+ return ret;
+}
+
+asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
+ compat_loff_t __user *offset,
+ compat_size_t count)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+ loff_t lof;
+
+ if (offset && get_user(lof, offset))
+ return -EFAULT;
+
+ set_fs(KERNEL_DS);
+ ret = sys_sendfile64(out_fd, in_fd,
+ offset ? (loff_t __user *) &lof : NULL,
+ count);
+ set_fs(old_fs);
+
+ if (offset && put_user(lof, offset))
+ return -EFAULT;
+
+ return ret;
+}
+
+/* This is just a version for 32-bit applications which does
+ * not force O_LARGEFILE on.
+ */
+
+asmlinkage long sparc32_open(const char __user *filename,
+ int flags, int mode)
+{
+ return do_sys_open(AT_FDCWD, filename, flags, mode);
+}
+
+extern unsigned long do_mremap(unsigned long addr,
+ unsigned long old_len, unsigned long new_len,
+ unsigned long flags, unsigned long new_addr);
+
+asmlinkage unsigned long sys32_mremap(unsigned long addr,
+ unsigned long old_len, unsigned long new_len,
+ unsigned long flags, u32 __new_addr)
+{
+ unsigned long ret = -EINVAL;
+ unsigned long new_addr = __new_addr;
+
+ if (unlikely(sparc_mmap_check(addr, old_len)))
+ goto out;
+ if (unlikely(sparc_mmap_check(new_addr, new_len)))
+ goto out;
+ down_write(&current->mm->mmap_sem);
+ ret = do_mremap(addr, old_len, new_len, flags, new_addr);
+ up_write(&current->mm->mmap_sem);
+out:
+ return ret;
+}
+
+struct __sysctl_args32 {
+ u32 name;
+ int nlen;
+ u32 oldval;
+ u32 oldlenp;
+ u32 newval;
+ u32 newlen;
+ u32 __unused[4];
+};
+
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
+{
+#ifndef CONFIG_SYSCTL_SYSCALL
+ return -ENOSYS;
+#else
+ struct __sysctl_args32 tmp;
+ int error;
+ size_t oldlen, __user *oldlenp = NULL;
+ unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
+
+ if (copy_from_user(&tmp, args, sizeof(tmp)))
+ return -EFAULT;
+
+ if (tmp.oldval && tmp.oldlenp) {
+ /* Duh, this is ugly and might not work if sysctl_args
+ is in read-only memory, but do_sysctl does indirectly
+ a lot of uaccess in both directions and we'd have to
+ basically copy the whole sysctl.c here, and
+ glibc's __sysctl uses rw memory for the structure
+ anyway. */
+ if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
+ put_user(oldlen, (size_t __user *)addr))
+ return -EFAULT;
+ oldlenp = (size_t __user *)addr;
+ }
+
+ lock_kernel();
+ error = do_sysctl((int __user *)(unsigned long) tmp.name,
+ tmp.nlen,
+ (void __user *)(unsigned long) tmp.oldval,
+ oldlenp,
+ (void __user *)(unsigned long) tmp.newval,
+ tmp.newlen);
+ unlock_kernel();
+ if (oldlenp) {
+ if (!error) {
+ if (get_user(oldlen, (size_t __user *)addr) ||
+ put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
+ error = -EFAULT;
+ }
+ if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
+ error = -EFAULT;
+ }
+ return error;
+#endif
+}
+
+long sys32_lookup_dcookie(unsigned long cookie_high,
+ unsigned long cookie_low,
+ char __user *buf, size_t len)
+{
+ return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
+ buf, len);
+}
+
+long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
+{
+ return sys_sync_file_range(fd,
+ (off_high << 32) | off_low,
+ (nb_high << 32) | nb_low,
+ flags);
+}
+
+asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
+ u32 lenhi, u32 lenlo)
+{
+ return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
+ ((loff_t)lenhi << 32) | lenlo);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 13:29:06 +0000