Messages in this thread Patch in this message | | | Date | Mon, 28 Sep 2009 15:54:17 +0900 | From | Hidetoshi Seto <> | Subject | [PATCH 5/5] mce-inject: allow injecting status=0 to poll handler |
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We can inject void data to exception handler by writing data with status=0 and flag=MCE_INJ_EXCEPTION. But without this patch we cannot do same to poll handler by status=0 and flag=!MCE_INJ_EXCEPTION.
This change will allow us to test behavior of poll handler with no data.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> --- arch/x86/kernel/cpu/mcheck/mce-inject.c | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c index 7691c52..2eeb034 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-inject.c +++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c @@ -96,7 +96,7 @@ static int mce_raise_notify(struct notifier_block *self, if (m->inject_flags & MCE_INJ_EXCEPTION) raise_exception(m, args->regs); - else if (m->status) + else raise_poll(m); return NOTIFY_STOP; @@ -136,13 +136,12 @@ static int raise_local(void) ret = -EINVAL; } printk(KERN_INFO "MCE exception done on CPU %d\n", cpu); - } else if (m->status) { + } else { printk(KERN_INFO "Starting machine check poll CPU %d\n", cpu); raise_poll(m); mce_notify_irq(); printk(KERN_INFO "Machine check poll done on CPU %d\n", cpu); - } else - m->valid = 0; + } return ret; } -- 1.6.4.3
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