[PATCHv2,2/4] spinlock: shrink struct lock_debug
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Message ID 1453825513-1611-3-git-send-email-david.vrabel@citrix.com
State New, archived
Headers show

Commit Message

David Vrabel Jan. 26, 2016, 4:25 p.m. UTC
From: Jennifer Herbert <jennifer.herbert@citrix.com>

Reduce the size of struct lock_debug so increases in other lock
structures don't increase the size of struct domain too much.

Signed-off-by: Jennifer Herbert <jennifer.herbert@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
v2:
- Continue to use int for local variable.
---
 xen/include/xen/spinlock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/xen/include/xen/spinlock.h b/xen/include/xen/spinlock.h
index 8b2590f..22c4fc2 100644
--- a/xen/include/xen/spinlock.h
+++ b/xen/include/xen/spinlock.h
@@ -8,7 +8,7 @@ 
 
 #ifndef NDEBUG
 struct lock_debug {
-    int irq_safe; /* +1: IRQ-safe; 0: not IRQ-safe; -1: don't know yet */
+    s16 irq_safe; /* +1: IRQ-safe; 0: not IRQ-safe; -1: don't know yet */
 };
 #define _LOCK_DEBUG { -1 }
 void spin_debug_enable(void);