Re: [PATCH v2 00/29] kmem limitation for memcg

[Glauber Costa]

On 05/11/2012 02:44 PM, Glauber Costa wrote:
> Hello All,
>
> This is my new take for the memcg kmem accounting.
> At this point, I consider the series pretty mature - although of course,
> bugs are always there...
>
> As a disclaimer, however, I must say that the slub code is much more stressed
> by me, since I know it better. If you have no more objections to the concepts
> presented, the remaining edges can probably be polished in a rc cycle,
> at the maintainers discretion, of course.
>
> Otherwise, I'll be happy to address any concerns of yours.
>
> Since last submission:
>
>   * memcgs can be properly removed.
>   * We are not charging based on current->mm->owner instead of current
>   * kmem_large allocations for slub got some fixes, specially for the free case
>   * A cache that is registered can be properly removed (common module case)
>     even if it spans memcg children. Slab had some code for that, now it works
>     well with both
>   * A new mechanism for skipping allocations is proposed (patch posted
>     separately already). Now instead of having kmalloc_no_account, we mark
>     a region as non-accountable for memcg.
Forgot to mention the ida-based index allocation, instead of keeping our 
own bitmap.
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