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[Xen-devel] [PATCH] x86: reduce irq_cpustat_t's __softirq_pending to 32 bits

  • To: "xen-devel" <xen-devel@xxxxxxxxxxxxx>
  • From: "Jan Beulich" <JBeulich@xxxxxxxx>
  • Date: Fri, 01 Mar 2013 16:11:34 +0000
  • Delivery-date: Fri, 01 Mar 2013 16:11:49 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

Assembly code was already only accessing the low 32 bits of it, and
we're far away from using all 32 bits of it.

Noticed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/include/asm-x86/hardirq.h
+++ b/xen/include/asm-x86/hardirq.h
@@ -5,7 +5,7 @@
 #include <xen/cache.h>
 typedef struct {
-       unsigned long __softirq_pending;
+       unsigned int __softirq_pending;
        unsigned int __local_irq_count;
        unsigned int __nmi_count;
        bool_t __mwait_wakeup;

Attachment: x86-softirq_pending-32-bits.patch
Description: Text document

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