[CORE] Fix spin_trylock() function for non SMP.

This allows "non SMP" (and in particular ARM9) to work with v0.2.7 Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
xvisor · Nov 14, 2015 · 375b8c5 · 375b8c5
1 parent 9db5cd1
commit 375b8c5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/include/vmm_spinlocks.h b/core/include/vmm_spinlocks.h
@@ -159,6 +159,7 @@ extern void vmm_scheduler_preempt_enable(void);
 					int ret; \
 					vmm_scheduler_preempt_disable(); \
 					if ((lock)->__tlock) { \
+						vmm_scheduler_preempt_enable(); \
 						ret = 0; \
 					} else { \
 						(lock)->__tlock = 1; \
@@ -301,6 +302,8 @@ extern void vmm_scheduler_preempt_enable(void);
 					arch_cpu_irq_save((flags)); \
 					vmm_scheduler_preempt_disable(); \
 					if ((lock)->__tlock) { \
+						vmm_scheduler_preempt_enable(); \
+						arch_cpu_irq_restore(flags); \
 						ret = 0; \
 					} else { \
 						(lock)->__tlock = 1; \