From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: pm list <linux-pm@lists.linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH] PM: Make warning in suspend_test_finish() less likely to happen
Date: Tue, 20 Oct 2009 06:45:02 +0200 [thread overview]
Message-ID: <200910200645.02384.rjw@sisk.pl> (raw)
From: Rafael J. Wysocki <rjw@sisk.pl>
Increase TEST_SUSPEND_SECONDS to 10 so the warning in
suspend_test_finish() doesn't annoy the users of slower systems so
much.
Also, make the warning print the suspend-resume cycle time, so
that we know why the warning actually triggered.
Patch prepared during the hacking session at the Kernel Summit in
Tokyo.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
kernel/power/suspend_test.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Index: linux-2.6/kernel/power/suspend_test.c
===================================================================
--- linux-2.6.orig/kernel/power/suspend_test.c
+++ linux-2.6/kernel/power/suspend_test.c
@@ -19,7 +19,7 @@
* The time it takes is system-specific though, so when we test this
* during system bootup we allow a LOT of time.
*/
-#define TEST_SUSPEND_SECONDS 5
+#define TEST_SUSPEND_SECONDS 10
static unsigned long suspend_test_start_time;
@@ -49,7 +49,8 @@ void suspend_test_finish(const char *lab
* has some performance issues. The stack dump of a WARN_ON
* is more likely to get the right attention than a printk...
*/
- WARN(msec > (TEST_SUSPEND_SECONDS * 1000), "Component: %s\n", label);
+ WARN(msec > (TEST_SUSPEND_SECONDS * 1000),
+ "Component: %s, time: %u\n", label, msec);
}
/*
reply other threads:[~2009-10-20 4:43 UTC|newest]
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