Commit 022e4fc0 authored May 01, 2006 by Heiko Carstens Committed by Linus Torvalds May 01, 2006

[PATCH] s390: fix ipd handling



As pointed out by Paulo Marques <pmarques@grupopie.com> MAX_IPD_TIME is by
a factor of ten too small.  Since this means that we allow ten times more
IPDs in the intended time frame this could result in a cpu check stop of a
physical cpu.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 8261aa60

drivers/s390/s390mach.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -13,6 +13,7 @@
		#include <linux/sched.h>
		#include <linux/errno.h>
		#include <linux/workqueue.h>
		#include <linux/time.h>

		#include <asm/lowcore.h>

		@@ -363,7 +364,7 @@ s390_revalidate_registers(struct mci *mci)
		}

		#define MAX_IPD_COUNT 29
		#define MAX_IPD_TIME (5 * 60 * 100 * 1000) /* 5 minutes */
		#define MAX_IPD_TIME (5 * 60 * USEC_PER_SEC) /* 5 minutes */

		/*
		* machine check handler.