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-rw-r--r--drivers/acpi/namespace/nsalloc.c12
-rw-r--r--drivers/acpi/utilities/utcache.c8
-rw-r--r--include/acpi/acdebug.h4
-rw-r--r--include/acpi/aclocal.h2
4 files changed, 26 insertions, 0 deletions
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
index 55b407aae266..1e6a1b02dfd7 100644
--- a/drivers/acpi/namespace/nsalloc.c
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -61,6 +61,9 @@ ACPI_MODULE_NAME("nsalloc")
struct acpi_namespace_node *acpi_ns_create_node(u32 name)
{
struct acpi_namespace_node *node;
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ u32 temp;
+#endif
ACPI_FUNCTION_TRACE(ns_create_node);
@@ -71,6 +74,15 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name)
ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ temp =
+ acpi_gbl_ns_node_list->total_allocated -
+ acpi_gbl_ns_node_list->total_freed;
+ if (temp > acpi_gbl_ns_node_list->max_occupied) {
+ acpi_gbl_ns_node_list->max_occupied = temp;
+ }
+#endif
+
node->name.integer = name;
ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
return_PTR(node);
diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c
index 1a1f8109159c..d796fcac33af 100644
--- a/drivers/acpi/utilities/utcache.c
+++ b/drivers/acpi/utilities/utcache.c
@@ -289,6 +289,14 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache)
ACPI_MEM_TRACKING(cache->total_allocated++);
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+ if ((cache->total_allocated - cache->total_freed) >
+ cache->max_occupied) {
+ cache->max_occupied =
+ cache->total_allocated - cache->total_freed;
+ }
+#endif
+
/* Avoid deadlock with ACPI_ALLOCATE_ZEROED */
status = acpi_ut_release_mutex(ACPI_MTX_CACHES);
diff --git a/include/acpi/acdebug.h b/include/acpi/acdebug.h
index 47296ffef7dd..c46a33abe457 100644
--- a/include/acpi/acdebug.h
+++ b/include/acpi/acdebug.h
@@ -159,6 +159,10 @@ void
acpi_db_create_execution_threads(char *num_threads_arg,
char *num_loops_arg, char *method_name_arg);
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+u32 acpi_db_get_cache_info(struct acpi_memory_list *cache);
+#endif
+
/*
* dbfileio - Debugger file I/O commands
*/
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index 9b7e05c87595..e135dab905f8 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -954,6 +954,8 @@ struct acpi_memory_list {
u32 total_allocated;
u32 total_freed;
+ u32 max_occupied;
+ u32 total_size;
u32 current_total_size;
u32 requests;
u32 hits;
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