The patch titled
ipmi: set schedule_timeout_wait() value back to one
has been added to the -mm tree. Its filename is
ipmi-set-schedule_timeout_wait-value-back-to-one.patch
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------------------------------------------------------
Subject: ipmi: set schedule_timeout_wait() value back to one
From: Martin Wilck <martin.wilck@xxxxxxxxxxxxxx>
Fix a regression introduced by ae74e823cb7d ("ipmi: add parameter to limit
CPU usage in kipmid").
Some systems were seeing CPU usage go up dramatically with the recent
changes to try to reduce timer usage in the IPMI driver. This was traced
down to schedule_timeout_interruptible(1) being changed to
schedule_timeout_interruptbile(0). Revert that part of the change.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147
Reported-by: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
Signed-off-by: Corey Minyard <cminyard@xxxxxxxxxx>
Tested-by: Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx> [2.6.34.x]
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/ipmi/ipmi_si_intf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/char/ipmi/ipmi_si_intf.c~ipmi-set-schedule_timeout_wait-value-back-to-one drivers/char/ipmi/ipmi_si_intf.c
--- a/drivers/char/ipmi/ipmi_si_intf.c~ipmi-set-schedule_timeout_wait-value-back-to-one
+++ a/drivers/char/ipmi/ipmi_si_intf.c
@@ -1024,7 +1024,7 @@ static int ipmi_thread(void *data)
else if (smi_result == SI_SM_IDLE)
schedule_timeout_interruptible(100);
else
- schedule_timeout_interruptible(0);
+ schedule_timeout_interruptible(1);
}
return 0;
}
_
Patches currently in -mm which might be from martin.wilck@xxxxxxxxxxxxxx are
ipmi-set-schedule_timeout_wait-value-back-to-one.patch
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