Commit 8bd108d1 authored by Alexey Starikovskiy's avatar Alexey Starikovskiy Committed by Len Brown
Browse files

ACPICA: add preemption point after each opcode parse 

Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2



Signed-off-by: default avatarAlexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: default avatarSitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent eec93549

drivers/acpi/parser/psloop.c

+2 −0
Original line number Diff line number Diff line
@@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state, 
		*op = NULL;

	}



	ACPI_PREEMPTION_POINT();



	return_ACPI_STATUS(AE_OK);

}

include/acpi/acmacros.h

+5 −0
Original line number Diff line number Diff line
@@ -685,4 +685,9 @@ struct acpi_integer_overlay { 


#endif				/* ACPI_DBG_TRACK_ALLOCATIONS */



/* Preemption point */

#ifndef ACPI_PREEMPTION_POINT

#define ACPI_PREEMPTION_POINT() /* no preemption */

#endif



#endif				/* ACMACROS_H */

include/acpi/platform/aclinux.h

+6 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ 
#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/ctype.h>

#include <linux/sched.h>

#include <asm/system.h>

#include <asm/atomic.h>

#include <asm/div64.h>
@@ -137,4 +138,9 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache) 
#define ACPI_ALLOCATE_ZEROED(a)	acpi_os_allocate_zeroed(a)

#define ACPI_FREE(a)		kfree(a)



/*

 * We need to show where it is safe to preempt execution of ACPICA

 */

#define ACPI_PREEMPTION_POINT()	cond_resched()



#endif				/* __ACLINUX_H__ */