The patch titled
Subject: mm: kmemleak: slightly reduce the size of some structures on 64-bit architectures
has been added to the -mm tree. Its filename is
mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures.patch
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From: Catalin Marinas <catalin.marinas@xxxxxxx>
Subject: mm: kmemleak: slightly reduce the size of some structures on 64-bit architectures
Change the kmemleak_object.flags type to unsigned int and moves the
early_log.min_count (int) near early_log.op_type (int) to slightly reduce
the size of these structures on 64-bit architectures.
Link: http://lkml.kernel.org/r/1495726937-23557-2-git-send-email-catalin.marinas@xxxxxxx
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kmemleak.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/kmemleak.c~mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures mm/kmemleak.c
--- a/mm/kmemleak.c~mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures
+++ a/mm/kmemleak.c
@@ -150,7 +150,7 @@ struct kmemleak_scan_area {
*/
struct kmemleak_object {
spinlock_t lock;
- unsigned long flags; /* object status flags */
+ unsigned int flags; /* object status flags */
struct list_head object_list;
struct list_head gray_list;
struct rb_node rb_node;
@@ -262,9 +262,9 @@ enum {
*/
struct early_log {
int op_type; /* kmemleak operation type */
+ int min_count; /* minimum reference count */
const void *ptr; /* allocated/freed memory block */
size_t size; /* memory block size */
- int min_count; /* minimum reference count */
unsigned long trace[MAX_TRACE]; /* stack trace */
unsigned int trace_len; /* stack trace length */
};
@@ -393,7 +393,7 @@ static void dump_object_info(struct kmem
object->comm, object->pid, object->jiffies);
pr_notice(" min_count = %d\n", object->min_count);
pr_notice(" count = %d\n", object->count);
- pr_notice(" flags = 0x%lx\n", object->flags);
+ pr_notice(" flags = 0x%x\n", object->flags);
pr_notice(" checksum = %u\n", object->checksum);
pr_notice(" backtrace:\n");
print_stack_trace(&trace, 4);
_
Patches currently in -mm which might be from catalin.marinas@xxxxxxx are
mm-kmemleak-slightly-reduce-the-size-of-some-structures-on-64-bit-architectures.patch
mm-kmemleak-factor-object-reference-updating-out-of-scan_block.patch
mm-kmemleak-treat-vm_struct-as-alternative-reference-to-vmalloced-objects.patch
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