From: Jeff Dike <jdike@addtoit.com>
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org,
user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] [PATCH 4/7] UML - Fix load average >=1
Date: Thu, 28 Jul 2005 12:26:48 -0400 [thread overview]
Message-ID: <200507281626.j6SGQmup009486@ccure.user-mode-linux.org> (raw)
update_process_times was missing its irq_enter/irq_exit wrapper. This caused
ksoftirqd to be scheduled on every clock tick.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Index: linux-2.6.12-rc3-mm2/arch/um/kernel/time_kern.c
===================================================================
--- linux-2.6.12-rc3-mm2.orig/arch/um/kernel/time_kern.c 2005-07-28 11:06:35.000000000 -0400
+++ linux-2.6.12-rc3-mm2/arch/um/kernel/time_kern.c 2005-07-28 11:26:17.000000000 -0400
@@ -137,7 +137,10 @@
void timer_handler(int sig, union uml_pt_regs *regs)
{
local_irq_disable();
- update_process_times(CHOOSE_MODE(user_context(UPT_SP(regs)), (regs)->skas.is_user));
+ irq_enter();
+ update_process_times(CHOOSE_MODE(user_context(UPT_SP(regs)),
+ (regs)->skas.is_user));
+ irq_exit();
local_irq_enable();
if(current_thread->cpu == 0)
timer_irq(regs);
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reply other threads:[~2005-07-28 16:40 UTC|newest]
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