[PATCH 02/18] ACPI: osl, add acpi_os_create_lock interface
From: Len Brown <lenb@kernel.org>
Date: 2011-05-29 09:44:18
Subsystem:
acpi, acpi component architecture (acpica), the rest · Maintainers:
"Rafael J. Wysocki", Saket Dumbre, Linus Torvalds
From: Lin Ming <redacted> Signed-off-by: Lin Ming <redacted> Signed-off-by: Len Brown <redacted> --- drivers/acpi/osl.c | 33 +++++++++++++++++++++++++-------- include/acpi/acpiosxf.h | 3 +++ 2 files changed, 28 insertions(+), 8 deletions(-)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index c90c76a..cf750a7 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c@@ -883,14 +883,6 @@ void acpi_os_wait_events_complete(void *context) EXPORT_SYMBOL(acpi_os_wait_events_complete); -/* - * Deallocate the memory for a spinlock. - */ -void acpi_os_delete_lock(acpi_spinlock handle) -{ - return; -} - acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) {
@@ -1322,6 +1314,31 @@ int acpi_resources_are_enforced(void) EXPORT_SYMBOL(acpi_resources_are_enforced); /* + * Create and initialize a spinlock. + */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle) +{ + spinlock_t *lock; + + lock = ACPI_ALLOCATE(sizeof(spinlock_t)); + if (!lock) + return AE_NO_MEMORY; + spin_lock_init(lock); + *out_handle = lock; + + return AE_OK; +} + +/* + * Deallocate the memory for a spinlock. + */ +void acpi_os_delete_lock(acpi_spinlock handle) +{ + ACPI_FREE(handle); +} + +/* * Acquire a spinlock. * * handle is a pointer to the spinlock_t.
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index a3252a5..a756bc8 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h@@ -98,6 +98,9 @@ acpi_os_table_override(struct acpi_table_header *existing_table, /* * Spinlock primitives */ +acpi_status +acpi_os_create_lock(acpi_spinlock *out_handle); + void acpi_os_delete_lock(acpi_spinlock handle); acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
--
1.7.5.3.367.ga9930.dirty