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

Xin, Xiaohui
2010-09-11T09:42:30Z

>>> +
>>> + 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