ia64/xen-unstable

changeset 18120:c433ee4844fb

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Fix debug key t to avoid irq jitter.

From: Dan Magenheimer <dan.magenheimer@oracle.com>
Siigned-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Mon Jul 21 09:49:40 2008 +0100 (2008-07-21)
parents 34ad9e2c0d10
children a0ce4b040114
files xen/common/keyhandler.c
line diff
     1.1 --- a/xen/common/keyhandler.c	Mon Jul 21 09:47:07 2008 +0100
     1.2 +++ b/xen/common/keyhandler.c	Mon Jul 21 09:49:40 2008 +0100
     1.3 @@ -240,10 +240,12 @@ static s_time_t read_clocks_time[NR_CPUS
     1.4  static void read_clocks_slave(void *unused)
     1.5  {
     1.6      unsigned int cpu = smp_processor_id();
     1.7 +    local_irq_disable();
     1.8      while ( !cpu_isset(cpu, read_clocks_cpumask) )
     1.9          cpu_relax();
    1.10      read_clocks_time[cpu] = NOW();
    1.11      cpu_clear(cpu, read_clocks_cpumask);
    1.12 +    local_irq_enable();
    1.13  }
    1.14  
    1.15  static void read_clocks(unsigned char key)