[PATCH] compat_sys_fcntl{,64} parisc part

Here is the parisc part of the patch with Willy's blessing.

arch/parisc/kernel/sys_parisc32.c

@@ -316,35 +316,6 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
     return -ENOSYS;
 }
 
-extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
-
-asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	switch (cmd) {
-	case F_GETLK:
-	case F_SETLK:
-	case F_SETLKW:
-		{
-			struct flock f;
-			long ret;
-			
-			if (get_compat_flock(&f, (struct compat_flock *)arg))
-				return -EFAULT;
-			KERNEL_SYSCALL(ret, sys_fcntl, fd, cmd, (unsigned long)&f);
-			if (ret) return ret;
-			if (f.l_start >= 0x7fffffffUL ||
-			    f.l_len >= 0x7fffffffUL ||
-			    f.l_start + f.l_len >= 0x7fffffffUL)
-				return -EOVERFLOW;
-			if (put_compat_flock(&f, (struct compat_flock *)arg))
-				return -EFAULT;
-			return 0;
-		}
-	default:
-		return sys_fcntl(fd, cmd, (unsigned long)arg);
-	}
-}
-
 #ifdef CONFIG_SYSCTL
 
 struct __sysctl_args32 {
@@ -1300,28 +1271,6 @@ asmlinkage long sys32_msgrcv(int msqid,
 	return err;
 }
 
-/* LFS */
-
-extern asmlinkage long sys_fcntl(unsigned int, unsigned int, unsigned long);
-
-asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
-	switch (cmd) {
-		case F_GETLK64:
-			cmd = F_GETLK;
-			break;
-		case F_SETLK64:
-			cmd = F_SETLK;
-			break;
-		case F_SETLKW64:
-			cmd = F_SETLKW;
-			break;
-		default:
-			break;
-	}
-	return sys32_fcntl(fd, cmd, arg);
-}
-
 /* EXPORT/UNEXPORT */
 struct nfsctl_export32 {
 	char		ex_client[NFSCLNT_IDMAX+1];

arch/parisc/kernel/syscall.S

@@ -409,8 +409,7 @@ sys_call_table:
 	ENTRY_SAME(getpeername)
 	/* This one's a huge ugly mess */
 	ENTRY_DIFF(ioctl)
-	/* struct flock? */
-	ENTRY_DIFF(fcntl)		/* 55 */
+	ENTRY_COMP(fcntl)		/* 55 */
 	ENTRY_SAME(socketpair)
 	ENTRY_SAME(setpgid)
 	ENTRY_SAME(send)
@@ -589,7 +588,7 @@ sys_call_table:
 	ENTRY_OURS(truncate64)
 	ENTRY_OURS(ftruncate64)		/* 200 */
 	ENTRY_SAME(getdents64)
-	ENTRY_DIFF(fcntl64)
+	ENTRY_COMP(fcntl64)
 	ENTRY_SAME(ni_syscall)
 	ENTRY_SAME(ni_syscall)
 	ENTRY_SAME(ni_syscall)		/* 205 */

include/asm-parisc/compat.h

@@ -72,6 +72,14 @@ struct compat_flock {
 	compat_pid_t		l_pid;
 };
 
+struct compat_flock64 {
+	short			l_type;
+	short			l_whence;
+	compat_loff_t		l_start;
+	compat_loff_t		l_len;
+	compat_pid_t		l_pid;
+};
+
 struct compat_statfs {
 	s32		f_type;
 	s32		f_bsize;
@@ -92,4 +100,7 @@ typedef u32		compat_old_sigset_t;	/* at least 32 bits */
 
 typedef u32		compat_sigset_word;
 
+#define COMPAT_OFF_T_MAX	0x7fffffff
+#define COMPAT_LOFF_T_MAX	0x7fffffffffffffffL
+
 #endif /* _ASM_PARISC_COMPAT_H */