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| author | Len Brown <len.brown@intel.com> | 2006-07-10 01:35:51 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2006-07-10 02:37:22 -0400 |
| commit | e21c1ca3f98529921c829a792dfdbfc5a5dc393b (patch) | |
| tree | fdb0a3c00d46db197ae65e6c66fc841b194cb507 /include/acpi/platform | |
| parent | b3cf257623fabd8f1ee6700a6d328cc1c5da5a1d (diff) | |
| download | op-kernel-dev-e21c1ca3f98529921c829a792dfdbfc5a5dc393b.zip op-kernel-dev-e21c1ca3f98529921c829a792dfdbfc5a5dc393b.tar.gz | |
ACPI: acpi_os_allocate() fixes
Replace acpi_in_resume with a more general hack
to check irqs_disabled() on any kmalloc() from ACPI.
While setting (system_state != SYSTEM_RUNNING) on resume
seemed more general, Andrew Morton preferred this approach.
http://bugzilla.kernel.org/show_bug.cgi?id=3469
Make acpi_os_allocate() into an inline function to
allow /proc/slab_allocators to work.
Delete some memset() that could fault on allocation failure.
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi/platform')
| -rw-r--r-- | include/acpi/platform/aclinux.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 3f853ca..f011826 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -104,4 +104,26 @@ static inline acpi_thread_id acpi_os_get_thread_id(void) { return 0; } +/* + * The irqs_disabled() check is for resume from RAM. + * Interrupts are off during resume, just like they are for boot. + * However, boot has (system_state != SYSTEM_RUNNING) + * to quiet __might_sleep() in kmalloc() and resume does not. + */ +#include <acpi/actypes.h> +static inline void *acpi_os_allocate(acpi_size size) { + return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); +} +static inline void *acpi_os_allocate_zeroed(acpi_size size) { + return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); +} + +static inline void *acpi_os_acquire_object(acpi_cache_t * cache) { + return kmem_cache_zalloc(cache, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); +} + +#define ACPI_ALLOCATE(a) acpi_os_allocate(a) +#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) +#define ACPI_FREE(a) kfree(a) + #endif /* __ACLINUX_H__ */ |
