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make sure splraise doesn't lower spl, and spllower doesn't raise it

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This commit is contained in:
jmcneill 2011-09-05 11:12:51 +00:00
parent 4a68a29054
commit 3b183dddb9
1 changed files with 6 additions and 4 deletions
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10
sys/arch/usermode/usermode/intr.c
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@ -1,4 +1,4 @@
/* $NetBSD: intr.c,v 1.1 2011/09/04 21:08:18 jmcneill Exp $ */ /* $NetBSD: intr.c,v 1.2 2011/09/05 11:12:51 jmcneill Exp $ */
/*- /*-
* Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca> * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
@ -27,7 +27,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.1 2011/09/04 21:08:18 jmcneill Exp $"); __KERNEL_RCSID(0, "$NetBSD: intr.c,v 1.2 2011/09/05 11:12:51 jmcneill Exp $");
#include <sys/types.h> #include <sys/types.h>
@ -47,7 +47,8 @@ splraise(int x)
usermode_sigalrm_blocked = true; usermode_sigalrm_blocked = true;
} }
usermode_x = x; if (x > usermode_x)
usermode_x = x;
return oldx; return oldx;
} }
@ -60,5 +61,6 @@ spllower(int x)
usermode_sigalrm_blocked = false; usermode_sigalrm_blocked = false;
} }
usermode_x = x; if (usermode_x > x)
usermode_x = x;
} }