On 08/15/2011 03:55 PM, Pekka Enberg wrote:
> On Mon, Aug 15, 2011 at 2:32 PM, Pavel Emelyanov <xemul@xxxxxxxxxxxxx> wrote:
>>> Couldn't you simply do per-container "struct kmem_accounted_cache" in struct superblock?
>>
>> If by this you mean "account for all the kmem associated with particular superblock" then
>> this is OK for us, but this can't be done in a simple
>>
>> if (used + size > limit)
>> return -ENOMEM
>> else {
>> used += size;
>> return 0;
>> }
>>
>> manner, since once we hit the limit we should shrink the unused dentries. And most of the
>> patches are about this.
>
> So you want to shrink dentries that were allocated in the container
> that hit the dcache limit? How does this patch set deal with that? Or
> are you referring to some other patches?
Yes, this patchset does only the API part. The full idea is implemented (with poor API though) here:
http://lwn.net/Articles/441164/
> Pekka
> .
>
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