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);
+}