static int
dump_cache_info(int argc, char* argv[])
{
if (argc < 2) {
kprintf("usage: slab_cache [address]\n");
return 0;
}
ObjectCache* cache = (ObjectCache*)parse_expression(argv[1]);
kprintf("name: %s\n", cache->name);
kprintf("lock: %p\n", &cache->lock);
kprintf("object_size: %lu\n", cache->object_size);
kprintf("alignment: %" B_PRIuSIZE "\n", cache->alignment);
kprintf("cache_color_cycle: %lu\n", cache->cache_color_cycle);
kprintf("total_objects: %lu\n", cache->total_objects);
kprintf("used_count: %lu\n", cache->used_count);
kprintf("empty_count: %lu\n", cache->empty_count);
kprintf("pressure: %lu\n", cache->pressure);
kprintf("slab_size: %lu\n", cache->slab_size);
kprintf("usage: %lu\n", cache->usage);
kprintf("maximum: %lu\n", cache->maximum);
kprintf("flags: 0x%lx\n", cache->flags);
kprintf("cookie: %p\n", cache->cookie);
kprintf("resize entry don't wait: %p\n", cache->resize_entry_dont_wait);
kprintf("resize entry can wait: %p\n", cache->resize_entry_can_wait);
kprintf(" slab chunk size used offset free\n");
SlabList::Iterator iterator = cache->empty.GetIterator();
if (iterator.HasNext())
kprintf("empty:\n");
while (::slab* slab = iterator.Next())
dump_slab(slab);
iterator = cache->partial.GetIterator();
if (iterator.HasNext())
kprintf("partial:\n");
while (::slab* slab = iterator.Next())
dump_slab(slab);
iterator = cache->full.GetIterator();
if (iterator.HasNext())
kprintf("full:\n");
while (::slab* slab = iterator.Next())
dump_slab(slab);
if ((cache->flags & CACHE_NO_DEPOT) == 0) {
kprintf("depot:\n");
dump_object_depot(&cache->depot);
}
return 0;
}
static void handle_next(int key, struct tty_struct *tty)
{
if (dump_address)
dump_mem();
else if (dump_slab_ptr)
dump_slab();
}
static void return_dump_slab(char *str)
{
unsigned long address;
char *end;
address = simple_strtoul(str, &end, 0);
if (*end != '\0') {
printk("Bad address [%s]\n", str);
return;
}
dump_slab_ptr = (struct kmem_cache *)address;
if (!virt_addr_valid(dump_slab_ptr) ||
!PageSlab(virt_to_page(dump_slab_ptr))) {
printk("Non-slab address [%s]\n", str);
dump_slab_ptr = NULL;
return;
}
printk(KERN_DEBUG "SLAB %p %s size %d objuse %d\n",
dump_slab_ptr, dump_slab_ptr->name,
dump_slab_ptr->buffer_size, dump_slab_ptr->objuse);
dump_address = NULL;
dump_offset = 0;
dump_slab();
}
