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ACPICA: add preemption point after each opcode parse
Reference: http://marc.info/?l=linux-acpi&m=122236382701062&w=2 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Len Brown <len.brown@intel.com>
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3 changed files with 13 additions and 0 deletions
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@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
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*op = NULL;
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}
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ACPI_PREEMPTION_POINT();
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return_ACPI_STATUS(AE_OK);
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}
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@ -685,4 +685,9 @@ struct acpi_integer_overlay {
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#endif /* ACPI_DBG_TRACK_ALLOCATIONS */
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/* Preemption point */
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#ifndef ACPI_PREEMPTION_POINT
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#define ACPI_PREEMPTION_POINT() /* no preemption */
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#endif
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#endif /* ACMACROS_H */
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@ -53,6 +53,7 @@
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/ctype.h>
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#include <linux/sched.h>
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#include <asm/system.h>
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#include <asm/atomic.h>
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#include <asm/div64.h>
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@ -137,4 +138,9 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
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#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
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#define ACPI_FREE(a) kfree(a)
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/*
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* We need to show where it is safe to preempt execution of ACPICA
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*/
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#define ACPI_PREEMPTION_POINT() cond_resched()
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#endif /* __ACLINUX_H__ */
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