o Add sys32_setrlimit and sys32_getrlimit ... bash#

1 files changed, 50 insertions, 1 deletions

diff --git a/arch/mips64/kernel/linux32.c b/arch/mips64/kernel/linux32.c
index 9484ed907..b8f65a7d2 100644
--- a/arch/mips64/kernel/linux32.c
+++ b/arch/mips64/kernel/linux32.c
@@ -1,4 +1,4 @@
-/* $Id: linux32.c,v 1.11 2000/03/17 22:42:13 kanoj Exp $
+/* $Id: linux32.c,v 1.12 2000/03/18 07:38:32 ulfc Exp $
  * 
  * Conversion between 32-bit and 64-bit native system calls.
  *
@@ -562,3 +562,52 @@ sys32_waitpid(__kernel_pid_t32 pid, unsigned int *stat_addr, int options)
 	return sys32_wait4(pid, stat_addr, options, NULL);
 }
 
+#define RLIM_INFINITY32	0x7fffffff
+#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
+
+struct rlimit32 {
+	int	rlim_cur;
+	int	rlim_max;
+};
+
+extern asmlinkage int sys_getrlimit(unsigned int resource, struct rlimit *rlim);
+
+asmlinkage int
+sys32_getrlimit(unsigned int resource, struct rlimit32 *rlim)
+{
+	struct rlimit r;
+	int ret;
+	mm_segment_t old_fs = get_fs ();
+	
+	set_fs (KERNEL_DS);
+	ret = sys_old_getrlimit(resource, &r);
+	set_fs (old_fs);
+	if (!ret) {
+		ret = put_user (RESOURCE32(r.rlim_cur), &rlim->rlim_cur);
+		ret |= __put_user (RESOURCE32(r.rlim_max), &rlim->rlim_max);
+	}
+	return ret;
+}
+
+extern asmlinkage int sys_setrlimit(unsigned int resource, struct rlimit *rlim);
+
+asmlinkage int
+sys32_setrlimit(unsigned int resource, struct rlimit32 *rlim)
+{
+	struct rlimit r;
+	int ret;
+	mm_segment_t old_fs = get_fs ();
+
+	if (resource >= RLIM_NLIMITS) return -EINVAL;	
+	if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
+	    __get_user (r.rlim_max, &rlim->rlim_max))
+		return -EFAULT;
+	if (r.rlim_cur == RLIM_INFINITY32)
+		r.rlim_cur = RLIM_INFINITY;
+	if (r.rlim_max == RLIM_INFINITY32)
+		r.rlim_max = RLIM_INFINITY;
+	set_fs (KERNEL_DS);
+	ret = sys_setrlimit(resource, &r);
+	set_fs (old_fs);
+	return ret;
+}