linux-kernel - Re: [PATCH 2/6] hugetlb_cgroup: remove unneeded header file

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Message-ID: <CAHS8izML04ujw1+1622JPQjKH0RHt0zHSEQvbLXZaZ1edfF=bQ@mail.gmail.com>
Date:   Thu, 28 Jul 2022 11:02:50 -0700
From:   Mina Almasry <almasrymina@...gle.com>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     akpm@...ux-foundation.org, mike.kravetz@...cle.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] hugetlb_cgroup: remove unneeded header file

On Thu, Jul 28, 2022 at 10:45 AM Mina Almasry <almasrymina@...gle.com> wrote:
>
> On Thu, Jul 28, 2022 at 5:20 AM Miaohe Lin <linmiaohe@...wei.com> wrote:
> >
> > The header file slab.h is unneeded now. Remove it.
> >
> > Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
>
> Acked-by: Mina Almasry <almasrymina@...gle.com>
>

Actually, sorry, but this file calls kzalloc_node() which comes from
linux/slab.h, no? Can we keep the include then? slab.h is probably
included by other include files but for clarity it's better that
hugetlb_cgroup.c to include slab.h if it is calling functions declared
there.

> > ---
> >  mm/hugetlb_cgroup.c | 1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
> > index d16eb00c947d..99e9a367e1e5 100644
> > --- a/mm/hugetlb_cgroup.c
> > +++ b/mm/hugetlb_cgroup.c
> > @@ -19,7 +19,6 @@
> >
> >  #include <linux/cgroup.h>
> >  #include <linux/page_counter.h>
> > -#include <linux/slab.h>
> >  #include <linux/hugetlb.h>
> >  #include <linux/hugetlb_cgroup.h>
> >
> > --
> > 2.23.0
> >