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SubjectRe: [PATCH 01/10] mm: Assign id to every memcg-aware shrinker
On Mon, Mar 26, 2018 at 06:09:35PM +0300, Kirill Tkhai wrote:
> > AFAIK ida always allocates the smallest available id so you don't need
> > to keep track of bitmap_id_start.
>
> I saw mnt_alloc_group_id() does the same, so this was the reason, the additional
> variable was used. Doesn't this gives a good advise to ida and makes it find
> a free id faster?

No, it doesn't help the IDA in the slightest. I have a patch in my
tree to delete that silliness from mnt_alloc_group_id(); just haven't
submitted it yet.

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