On 01/27/2015 03:10 AM, Joonsoo Kim wrote:
>> + if (mem->n <= count) {
>> > + cma_release(cma, mem->p, mem->n);
>> > + count -= mem->n;
>> > + kfree(mem);
>> > + } else {
>> > + cma_release(cma, mem->p, count);
>> > + mem->p += count;
>> > + mem->n -= count;
>> > + count = 0;
>> > + cma_add_to_cma_mem_list(mem);
>> > + }
>> > + }
> If order_per_bit is not 0 and count used in cma_release() is
> different with the count used in cma_alloc(), problem could
> occur since bitmap management code can't handle that situation.
>
> Could we just disable this case in this testing module?
How should it behave then? Just free a max of 'count' pages and
stop beforehand if we're going to go over it?
Thanks,
Sasha
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