linux-kernel - Re: [PATCH] mm/sparse: Make sparse_init_one

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Message-ID: <CAGM2reZz3=OM7W_VbCGgnAMumo+AiPaG7sGUaichG_QNngYKsg@mail.gmail.com>
Date:   Mon, 2 Jul 2018 14:47:20 -0400
From:   Pavel Tatashin <pasha.tatashin@...cle.com>
To:     osalvador@...hadventures.net
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...e.com>,
        Vlastimil Babka <vbabka@...e.cz>, bhe@...hat.com,
        kirill.shutemov@...ux.intel.com, dave.hansen@...ux.intel.com,
        Linux Memory Management List <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>, osalvador@...e.de
Subject: Re: [PATCH] mm/sparse: Make sparse_init_one_section void and remove check

On Mon, Jul 2, 2018 at 11:43 AM <osalvador@...hadventures.net> wrote:
>
> From: Oscar Salvador <osalvador@...e.de>
>
> sparse_init_one_section() is being called from two sites:
> sparse_init() and sparse_add_one_section().
> The former calls it from a for_each_present_section_nr() loop,
> and the latter marks the section as present before calling it.
> This means that when sparse_init_one_section() gets called, we already know
> that the section is present.
> So there is no point to double check that in the function.
>
> This removes the check and makes the function void.
>
> Signed-off-by: Oscar Salvador <osalvador@...e.de>

Thank you Oscar.

Reviewed-by: Pavel Tatashin <pasha.tatashin@...cle.com>

> ---
>  mm/sparse.c | 12 +++---------
>  1 file changed, 3 insertions(+), 9 deletions(-)