x32: fix waitid()
It needs 64bit rusage and 32bit siginfo. glibc never calls it with
non-NULL rusage pointer, or we would've seen breakage already...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/compat.c b/kernel/compat.c
index 0770ac5..e5cc33c 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -587,7 +587,11 @@
return ret;
if (uru) {
- ret = put_compat_rusage(&ru, uru);
+ /* sys_waitid() overwrites everything in ru */
+ if (COMPAT_USE_64BIT_TIME)
+ ret = copy_to_user(uru, &ru, sizeof(ru));
+ else
+ ret = put_compat_rusage(&ru, uru);
if (ret)
return ret;
}