diff options
author | Bob Moore <robert.moore@intel.com> | 2006-03-17 16:44:00 -0500 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2006-06-14 01:22:20 -0400 |
commit | 61686124f47d7c4b78610346c5f8f9d8a6d46bb5 (patch) | |
tree | 6fd91b2c1749907e58ef136107e53d634d7978c4 /drivers/acpi/osl.c | |
parent | 144c87b4e03759214c362d267e01c2905f1ab095 (diff) |
[ACPI] ACPICA 20060317
Implemented the use of a cache object for all internal
namespace nodes. Since there are about 1000 static nodes
in a typical system, this will decrease memory use for
cache implementations that minimize per-allocation overhead
(such as a slab allocator.)
Removed the reference count mechanism for internal
namespace nodes, since it was deemed unnecessary. This
reduces the size of each namespace node by about 5%-10%
on all platforms. Nodes are now 20 bytes for the 32-bit
case, and 32 bytes for the 64-bit case.
Optimized several internal data structures to reduce
object size on 64-bit platforms by packing data within
the 64-bit alignment. This includes the frequently used
ACPI_OPERAND_OBJECT, of which there can be ~1000 static
instances corresponding to the namespace objects.
Added two new strings for the predefined _OSI method:
"Windows 2001.1 SP1" and "Windows 2006".
Split the allocation tracking mechanism out to a separate
file, from utalloc.c to uttrack.c. This mechanism appears
to be only useful for application-level code. Kernels may
wish to not include uttrack.c in distributions.
Removed all remnants of the obsolete ACPI_REPORT_* macros
and the associated code. (These macros have been replaced
by the ACPI_ERROR and ACPI_WARNING macros.)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/osl.c')
-rw-r--r-- | drivers/acpi/osl.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 56d97f1d108f..006b31a56559 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c | |||
@@ -1126,14 +1126,13 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) | |||
1126 | * | 1126 | * |
1127 | * RETURN: Status | 1127 | * RETURN: Status |
1128 | * | 1128 | * |
1129 | * DESCRIPTION: Get an object from the specified cache. If cache is empty, | 1129 | * DESCRIPTION: Return a zero-filled object. |
1130 | * the object is allocated. | ||
1131 | * | 1130 | * |
1132 | ******************************************************************************/ | 1131 | ******************************************************************************/ |
1133 | 1132 | ||
1134 | void *acpi_os_acquire_object(acpi_cache_t * cache) | 1133 | void *acpi_os_acquire_object(acpi_cache_t * cache) |
1135 | { | 1134 | { |
1136 | void *object = kmem_cache_alloc(cache, GFP_KERNEL); | 1135 | void *object = kmem_cache_zalloc(cache, GFP_KERNEL); |
1137 | WARN_ON(!object); | 1136 | WARN_ON(!object); |
1138 | return object; | 1137 | return object; |
1139 | } | 1138 | } |