With commit 56a61617dd22 ("mm: use stack_depot for recording kmemleak's
backtrace"), the size of kmemleak_object has been reduced by 128 bytes
for 64-bit arches. The replacement "depot_stack_handle_t trace_handle"
is actually just 4 bytes long leaving a hole of 4 bytes. By moving up
trace_handle to another existing 4-byte hold, we can save 8 more bytes
from kmemleak_object reducing its overall size from 248 to 240 bytes.
Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
---
mm/kmemleak.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 4f58f6170cdf..0114a694e520 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -158,9 +158,9 @@ struct kmemleak_object {
int count;
/* checksum for detecting modified objects */
u32 checksum;
+ depot_stack_handle_t trace_handle;
/* memory ranges to be scanned inside an object (empty for all) */
struct hlist_head area_list;
- depot_stack_handle_t trace_handle;
unsigned long jiffies; /* creation timestamp */
pid_t pid; /* pid of the current task */
char comm[TASK_COMM_LEN]; /* executable name */
--
2.39.3
