RE: [RFC PATCH v9 12/16] Add mp(mediate passthru) device.

[Xin, Xiaohui]

>>> +
>>> +	if (ctor->lock_pages + count > lock_limit && npages) {
>>> +		printk(KERN_INFO "exceed the locked memory rlimit.");
>>> +		return NULL;
>>> +	}
>>> +
>>> +	info = kmem_cache_zalloc(ext_page_info_cache, GFP_KERNEL);
>>
>>You seem to fill in all memory, why zalloc? this is data path ...
>
>Ok, Let me check this.

It's mainly for info->next and info->prev, these two fields will be used in hash functions.
But you are right, since most fields will be refilled. The new version includes the fix. 

Thanks
Xiaohui
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/