Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 720 insertions, 0 deletions

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
new file mode 100644
index 000000000000..613569018410
--- /dev/null
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -0,0 +1,720 @@
+/*
+ * sys_parisc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 2000-2001 Hewlett Packard Company
+ * Copyright (C) 2000 John Marvin
+ * Copyright (C) 2001 Matthew Wilcox
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment. Based heavily on sys_ia32.c and sys_sparc32.c.
+ */
+
+#include <linux/config.h>
+#include <linux/compat.h>
+#include <linux/kernel.h>
+#include <linux/sched.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/time.h>
+#include <linux/timex.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/ncp_fs.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/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/binfmts.h>
+#include <linux/namei.h>
+#include <linux/vfs.h>
+#include <linux/ptrace.h>
+#include <linux/swap.h>
+#include <linux/syscalls.h>
+
+#include <asm/types.h>
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+#include <asm/mmu_context.h>
+
+#include "sys32.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x)	printk x
+#else
+#define DBG(x)
+#endif
+
+/*
+ * sys32_execve() executes a new program.
+ */
+
+asmlinkage int sys32_execve(struct pt_regs *regs)
+{
+	int error;
+	char *filename;
+
+	DBG(("sys32_execve(%p) r26 = 0x%lx\n", regs, regs->gr[26]));
+	filename = getname((const char __user *) regs->gr[26]);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+	error = compat_do_execve(filename, compat_ptr(regs->gr[25]),
+				 compat_ptr(regs->gr[24]), regs);
+	if (error == 0) {
+		task_lock(current);
+		current->ptrace &= ~PT_DTRACE;
+		task_unlock(current);
+	}
+	putname(filename);
+out:
+
+	return error;
+}
+
+asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
+	int r22, int r21, int r20)
+{
+    printk(KERN_ERR "%s(%d): Unimplemented 32 on 64 syscall #%d!\n", 
+    	current->comm, current->pid, r20);
+    return -ENOSYS;
+}
+
+#ifdef CONFIG_SYSCTL
+
+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)
+{
+	struct __sysctl_args32 tmp;
+	int error;
+	unsigned int oldlen32;
+	size_t oldlen, *oldlenp = NULL;
+	unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
+	extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
+	       void *newval, size_t newlen);
+
+	DBG(("sysctl32(%p)\n", args));
+
+	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.  */
+		/* a possibly better hack than this, which will avoid the
+		 * problem if the struct is read only, is to push the
+		 * 'oldlen' value out to the user's stack instead. -PB
+		 */
+		if (get_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
+			return -EFAULT;
+		oldlen = oldlen32;
+		if (put_user(oldlen, (size_t *)addr))
+			return -EFAULT;
+		oldlenp = (size_t *)addr;
+	}
+
+	lock_kernel();
+	error = do_sysctl((int *)(u64)tmp.name, tmp.nlen, (void *)(u64)tmp.oldval,
+			  oldlenp, (void *)(u64)tmp.newval, tmp.newlen);
+	unlock_kernel();
+	if (oldlenp) {
+		if (!error) {
+			if (get_user(oldlen, (size_t *)addr)) {
+				error = -EFAULT;
+			} else {
+				oldlen32 = oldlen;
+				if (put_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
+					error = -EFAULT;
+			}
+		}
+		if (copy_to_user(&args->__unused[0], tmp.__unused, sizeof(tmp.__unused)))
+			error = -EFAULT;
+	}
+	return error;
+}
+
+#endif /* CONFIG_SYSCTL */
+
+asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
+	struct compat_timespec __user *interval)
+{
+	struct timespec t;
+	int ret;
+
+	KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
+	if (put_compat_timespec(&t, interval))
+		return -EFAULT;
+	return ret;
+}
+
+static int
+put_compat_timeval(struct compat_timeval __user *u, struct timeval *t)
+{
+	struct compat_timeval t32;
+	t32.tv_sec = t->tv_sec;
+	t32.tv_usec = t->tv_usec;
+	return copy_to_user(u, &t32, sizeof t32);
+}
+
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
+{
+	long usec;
+
+	if (__get_user(o->tv_sec, &i->tv_sec))
+		return -EFAULT;
+	if (__get_user(usec, &i->tv_usec))
+		return -EFAULT;
+	o->tv_nsec = usec * 1000;
+	return 0;
+}
+
+asmlinkage int
+sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+    extern void do_gettimeofday(struct timeval *tv);
+
+    if (tv) {
+	    struct timeval ktv;
+	    do_gettimeofday(&ktv);
+	    if (put_compat_timeval(tv, &ktv))
+		    return -EFAULT;
+    }
+    if (tz) {
+	    extern struct timezone sys_tz;
+	    if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+		    return -EFAULT;
+    }
+    return 0;
+}
+
+asmlinkage 
+int sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+	struct timespec kts;
+	struct timezone ktz;
+
+ 	if (tv) {
+		if (get_ts32(&kts, tv))
+			return -EFAULT;
+	}
+	if (tz) {
+		if (copy_from_user(&ktz, tz, sizeof(ktz)))
+			return -EFAULT;
+	}
+
+	return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
+{
+	int err;
+
+	if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
+	    !new_valid_dev(stat->rdev))
+		return -EOVERFLOW;
+
+	err  = put_user(new_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(0, &statbuf->st_reserved1);
+	err |= put_user(0, &statbuf->st_reserved2);
+	err |= put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
+	err |= put_user(stat->size, &statbuf->st_size);
+	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(stat->blksize, &statbuf->st_blksize);
+	err |= put_user(stat->blocks, &statbuf->st_blocks);
+	err |= put_user(0, &statbuf->__unused1);
+	err |= put_user(0, &statbuf->__unused2);
+	err |= put_user(0, &statbuf->__unused3);
+	err |= put_user(0, &statbuf->__unused4);
+	err |= put_user(0, &statbuf->__unused5);
+	err |= put_user(0, &statbuf->st_fstype); /* not avail */
+	err |= put_user(0, &statbuf->st_realdev); /* not avail */
+	err |= put_user(0, &statbuf->st_basemode); /* not avail */
+	err |= put_user(0, &statbuf->st_spareshort);
+	err |= put_user(stat->uid, &statbuf->st_uid);
+	err |= put_user(stat->gid, &statbuf->st_gid);
+	err |= put_user(0, &statbuf->st_spare4[0]);
+	err |= put_user(0, &statbuf->st_spare4[1]);
+	err |= put_user(0, &statbuf->st_spare4[2]);
+
+	return err;
+}
+
+struct linux32_dirent {
+	u32		d_ino;
+	compat_off_t	d_off;
+	u16		d_reclen;
+	char		d_name[1];
+};
+
+struct old_linux32_dirent {
+	u32	d_ino;
+	u32	d_offset;
+	u16	d_namlen;
+	char	d_name[1];
+};
+
+struct getdents32_callback {
+	struct linux32_dirent __user * current_dir;
+	struct linux32_dirent __user * previous;
+	int count;
+	int error;
+};
+
+struct readdir32_callback {
+	struct old_linux32_dirent __user * dirent;
+	int count;
+};
+
+#define ROUND_UP(x,a)	((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+static int
+filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
+	   unsigned int d_type)
+{
+	struct linux32_dirent __user * dirent;
+	struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+
+	buf->error = -EINVAL;	/* only used if we fail.. */
+	if (reclen > buf->count)
+		return -EINVAL;
+	dirent = buf->previous;
+	if (dirent)
+		put_user(offset, &dirent->d_off);
+	dirent = buf->current_dir;
+	buf->previous = dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(reclen, &dirent->d_reclen);
+	copy_to_user(dirent->d_name, name, namlen);
+	put_user(0, dirent->d_name + namlen);
+	dirent = ((void __user *)dirent) + reclen;
+	buf->current_dir = dirent;
+	buf->count -= reclen;
+	return 0;
+}
+
+asmlinkage long
+sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
+{
+	struct file * file;
+	struct linux32_dirent __user * lastdirent;
+	struct getdents32_callback buf;
+	int error;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	buf.current_dir = (struct linux32_dirent __user *) dirent;
+	buf.previous = NULL;
+	buf.count = count;
+	buf.error = 0;
+
+	error = vfs_readdir(file, filldir32, &buf);
+	if (error < 0)
+		goto out_putf;
+	error = buf.error;
+	lastdirent = buf.previous;
+	if (lastdirent) {
+		put_user(file->f_pos, &lastdirent->d_off);
+		error = count - buf.count;
+	}
+
+out_putf:
+	fput(file);
+out:
+	return error;
+}
+
+static int
+fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
+	      unsigned int d_type)
+{
+	struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
+	struct old_linux32_dirent __user * dirent;
+
+	if (buf->count)
+		return -EINVAL;
+	buf->count++;
+	dirent = buf->dirent;
+	put_user(ino, &dirent->d_ino);
+	put_user(offset, &dirent->d_offset);
+	put_user(namlen, &dirent->d_namlen);
+	copy_to_user(dirent->d_name, name, namlen);
+	put_user(0, dirent->d_name + namlen);
+	return 0;
+}
+
+asmlinkage long
+sys32_readdir (unsigned int fd, void __user * dirent, unsigned int count)
+{
+	int error;
+	struct file * file;
+	struct readdir32_callback buf;
+
+	error = -EBADF;
+	file = fget(fd);
+	if (!file)
+		goto out;
+
+	buf.count = 0;
+	buf.dirent = dirent;
+
+	error = vfs_readdir(file, fillonedir32, &buf);
+	if (error >= 0)
+		error = buf.count;
+	fput(file);
+out:
+	return error;
+}
+
+/*** copied from mips64 ***/
+/*
+ * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
+ * 64-bit unsigned longs.
+ */
+
+static inline int
+get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
+{
+	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
+	if (ufdset) {
+		unsigned long odd;
+
+		if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
+			return -EFAULT;
+
+		odd = n & 1UL;
+		n &= ~1UL;
+		while (n) {
+			unsigned long h, l;
+			__get_user(l, ufdset);
+			__get_user(h, ufdset+1);
+			ufdset += 2;
+			*fdset++ = h << 32 | l;
+			n -= 2;
+		}
+		if (odd)
+			__get_user(*fdset, ufdset);
+	} else {
+		/* Tricky, must clear full unsigned long in the
+		 * kernel fdset at the end, this makes sure that
+		 * actually happens.
+		 */
+		memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
+	}
+	return 0;
+}
+
+static inline void
+set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
+{
+	unsigned long odd;
+	n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
+
+	if (!ufdset)
+		return;
+
+	odd = n & 1UL;
+	n &= ~1UL;
+	while (n) {
+		unsigned long h, l;
+		l = *fdset++;
+		h = l >> 32;
+		__put_user(l, ufdset);
+		__put_user(h, ufdset+1);
+		ufdset += 2;
+		n -= 2;
+	}
+	if (odd)
+		__put_user(*fdset, ufdset);
+}
+
+struct msgbuf32 {
+    int mtype;
+    char mtext[1];
+};
+
+asmlinkage long sys32_msgsnd(int msqid,
+				struct msgbuf32 __user *umsgp32,
+				size_t msgsz, int msgflg)
+{
+	struct msgbuf *mb;
+	struct msgbuf32 mb32;
+	int err;
+
+	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
+		return -ENOMEM;
+
+	err = get_user(mb32.mtype, &umsgp32->mtype);
+	mb->mtype = mb32.mtype;
+	err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
+
+	if (err)
+		err = -EFAULT;
+	else
+		KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
+
+	kfree(mb);
+	return err;
+}
+
+asmlinkage long sys32_msgrcv(int msqid,
+				struct msgbuf32 __user *umsgp32,
+				size_t msgsz, long msgtyp, int msgflg)
+{
+	struct msgbuf *mb;
+	struct msgbuf32 mb32;
+	int err, len;
+
+	if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
+		return -ENOMEM;
+
+	KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
+
+	if (err >= 0) {
+		len = err;
+		mb32.mtype = mb->mtype;
+		err = put_user(mb32.mtype, &umsgp32->mtype);
+		err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
+		if (err)
+			err = -EFAULT;
+		else
+			err = len;
+	}
+
+	kfree(mb);
+	return err;
+}
+
+asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 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 int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 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;
+}
+
+
+struct timex32 {
+	unsigned int modes;	/* mode selector */
+	int offset;		/* time offset (usec) */
+	int freq;		/* frequency offset (scaled ppm) */
+	int maxerror;		/* maximum error (usec) */
+	int esterror;		/* estimated error (usec) */
+	int status;		/* clock command/status */
+	int constant;		/* pll time constant */
+	int precision;		/* clock precision (usec) (read only) */
+	int tolerance;		/* clock frequency tolerance (ppm)
+				 * (read only)
+				 */
+	struct compat_timeval time;	/* (read only) */
+	int tick;		/* (modified) usecs between clock ticks */
+
+	int ppsfreq;           /* pps frequency (scaled ppm) (ro) */
+	int jitter;            /* pps jitter (us) (ro) */
+	int shift;              /* interval duration (s) (shift) (ro) */
+	int stabil;            /* pps stability (scaled ppm) (ro) */
+	int jitcnt;            /* jitter limit exceeded (ro) */
+	int calcnt;            /* calibration intervals (ro) */
+	int errcnt;            /* calibration errors (ro) */
+	int stbcnt;            /* stability limit exceeded (ro) */
+
+	int  :32; int  :32; int  :32; int  :32;
+	int  :32; int  :32; int  :32; int  :32;
+	int  :32; int  :32; int  :32; int  :32;
+};
+
+asmlinkage long sys32_adjtimex(struct timex32 __user *txc_p32)
+{
+	struct timex txc;
+	struct timex32 t32;
+	int ret;
+	extern int do_adjtimex(struct timex *txc);
+
+	if(copy_from_user(&t32, txc_p32, sizeof(struct timex32)))
+		return -EFAULT;
+#undef CP
+#define CP(x) txc.x = t32.x
+	CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
+	CP(status); CP(constant); CP(precision); CP(tolerance);
+	CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
+	CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
+	CP(stbcnt);
+	ret = do_adjtimex(&txc);
+#undef CP
+#define CP(x) t32.x = txc.x
+	CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
+	CP(status); CP(constant); CP(precision); CP(tolerance);
+	CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
+	CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
+	CP(stbcnt);
+	return copy_to_user(txc_p32, &t32, sizeof(struct timex32)) ? -EFAULT : ret;
+}
+
+
+struct sysinfo32 {
+	s32 uptime;
+	u32 loads[3];
+	u32 totalram;
+	u32 freeram;
+	u32 sharedram;
+	u32 bufferram;
+	u32 totalswap;
+	u32 freeswap;
+	unsigned short procs;
+	u32 totalhigh;
+	u32 freehigh;
+	u32 mem_unit;
+	char _f[12];
+};
+
+/* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
+ * undoes the good work done elsewhere, and rather than undoing the
+ * damage, I decided to just duplicate the code from sys_sysinfo here.
+ */
+
+asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
+{
+	struct sysinfo val;
+	int err;
+	unsigned long seq;
+
+	/* We don't need a memset here because we copy the
+	 * struct to userspace once element at a time.
+	 */
+
+	do {
+		seq = read_seqbegin(&xtime_lock);
+		val.uptime = jiffies / HZ;
+
+		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+		val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
+		val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
+
+		val.procs = nr_threads;
+	} while (read_seqretry(&xtime_lock, seq));
+
+
+	si_meminfo(&val);
+	si_swapinfo(&val);
+	
+	err = put_user (val.uptime, &info->uptime);
+	err |= __put_user (val.loads[0], &info->loads[0]);
+	err |= __put_user (val.loads[1], &info->loads[1]);
+	err |= __put_user (val.loads[2], &info->loads[2]);
+	err |= __put_user (val.totalram, &info->totalram);
+	err |= __put_user (val.freeram, &info->freeram);
+	err |= __put_user (val.sharedram, &info->sharedram);
+	err |= __put_user (val.bufferram, &info->bufferram);
+	err |= __put_user (val.totalswap, &info->totalswap);
+	err |= __put_user (val.freeswap, &info->freeswap);
+	err |= __put_user (val.procs, &info->procs);
+	err |= __put_user (val.totalhigh, &info->totalhigh);
+	err |= __put_user (val.freehigh, &info->freehigh);
+	err |= __put_user (val.mem_unit, &info->mem_unit);
+	return err ? -EFAULT : 0;
+}
+
+
+/* lseek() needs a wrapper because 'offset' can be negative, but the top
+ * half of the argument has been zeroed by syscall.S.
+ */
+
+asmlinkage int sys32_lseek(unsigned int fd, int offset, unsigned int origin)
+{
+	return sys_lseek(fd, offset, origin);
+}
+
+asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
+{
+        union semun u;
+	
+        if (cmd == SETVAL) {
+                /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
+                 * The int should be in the first 4, but our argument
+                 * frobbing has left it in the last 4.
+                 */
+                u.val = *((int *)&arg + 1);
+                return sys_semctl (semid, semnum, cmd, u);
+	}
+	return sys_semctl (semid, semnum, cmd, arg);
+}
+
+long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
+			  size_t len)
+{
+	return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
+				  buf, len);
+}