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); _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
