提交 8bd108d1 编写于 作者: A Alexey Starikovskiy 提交者: Len Brown

ACPICA: add preemption point after each opcode parse

Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: NSitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: NLen Brown <len.brown@intel.com>
上级 eec93549
...@@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state, ...@@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
*op = NULL; *op = NULL;
} }
ACPI_PREEMPTION_POINT();
return_ACPI_STATUS(AE_OK); return_ACPI_STATUS(AE_OK);
} }
......
...@@ -685,4 +685,9 @@ struct acpi_integer_overlay { ...@@ -685,4 +685,9 @@ struct acpi_integer_overlay {
#endif /* ACPI_DBG_TRACK_ALLOCATIONS */ #endif /* ACPI_DBG_TRACK_ALLOCATIONS */
/* Preemption point */
#ifndef ACPI_PREEMPTION_POINT
#define ACPI_PREEMPTION_POINT() /* no preemption */
#endif
#endif /* ACMACROS_H */ #endif /* ACMACROS_H */
...@@ -53,6 +53,7 @@ ...@@ -53,6 +53,7 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/ctype.h> #include <linux/ctype.h>
#include <linux/sched.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm/atomic.h> #include <asm/atomic.h>
#include <asm/div64.h> #include <asm/div64.h>
...@@ -137,4 +138,9 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache) ...@@ -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_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
#define ACPI_FREE(a) kfree(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__ */ #endif /* __ACLINUX_H__ */
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