Initial file dump from open source releaseHEADmaster

1 files changed, 36 insertions, 0 deletions

diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
new file mode 100644
index 00000000..60dd470f
--- /dev/null
+++ b/arch/parisc/kernel/sys32.h
@@ -0,0 +1,36 @@
+/* 
+ *    Copyright (C) 2002 Richard Hirst <rhirst at parisc-linux.org>
+ *    Copyright (C) 2003 James Bottomley <jejb at parisc-linux.org>
+ *    Copyright (C) 2003 Randolph Chung <tausq with parisc-linux.org>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef _PARISC64_KERNEL_SYS32_H
+#define _PARISC64_KERNEL_SYS32_H
+
+#include <linux/compat.h>
+
+/* Call a kernel syscall which will use kernel space instead of user
+ * space for its copy_to/from_user.
+ */
+#define KERNEL_SYSCALL(ret, syscall, args...) \
+{ \
+    mm_segment_t old_fs = get_fs(); \
+    set_fs(KERNEL_DS); \
+    ret = syscall(args); \
+    set_fs (old_fs); \
+}
+
+#endif