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| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2008-09-25 21:40:30 +0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-10-22 23:14:41 -0400 |
| commit | 8bd108d14604d9c95000751e6c6ecbd11ea6ed40 (patch) | |
| tree | af101e1f12330fe76d5a973851ea84fb1c2eb220 | |
| parent | eec935490172dbfa1a32647f9deb2b66a66f2741 (diff) | |
| download | kernel-crypto-8bd108d14604d9c95000751e6c6ecbd11ea6ed40.tar.gz kernel-crypto-8bd108d14604d9c95000751e6c6ecbd11ea6ed40.tar.xz kernel-crypto-8bd108d14604d9c95000751e6c6ecbd11ea6ed40.zip | |
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>
| -rw-r--r-- | drivers/acpi/parser/psloop.c | 2 | ||||
| -rw-r--r-- | include/acpi/acmacros.h | 5 | ||||
| -rw-r--r-- | include/acpi/platform/aclinux.h | 6 |
3 files changed, 13 insertions, 0 deletions
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c index c06238e55d9..4647039a0d8 100644 --- a/drivers/acpi/parser/psloop.c +++ b/drivers/acpi/parser/psloop.c @@ -719,6 +719,8 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state, *op = NULL; } + ACPI_PREEMPTION_POINT(); + return_ACPI_STATUS(AE_OK); } diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h index 2106f9136cc..a1e3240bf46 100644 --- a/include/acpi/acmacros.h +++ b/include/acpi/acmacros.h @@ -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 */ diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 9af46459868..029c8c06c15 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -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__ */ |