linux-kernel - Re: [PATCH 00/30] mm: remove bootmem allocator

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Message-ID: <20180926094154.GT6278@dhcp22.suse.cz>
Date:   Wed, 26 Sep 2018 11:41:54 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Mike Rapoport <rppt@...ux.vnet.ibm.com>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Chris Zankel <chris@...kel.net>,
        "David S. Miller" <davem@...emloft.net>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greentime Hu <green.hu@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guan Xuetao <gxt@....edu.cn>, Ingo Molnar <mingo@...hat.com>,
        "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Jonas Bonn <jonas@...thpole.se>,
        Jonathan Corbet <corbet@....net>,
        Ley Foon Tan <lftan@...era.com>,
        Mark Salter <msalter@...hat.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Matt Turner <mattst88@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Michal Simek <monstr@...str.eu>,
        Palmer Dabbelt <palmer@...ive.com>,
        Paul Burton <paul.burton@...s.com>,
        Richard Kuo <rkuo@...eaurora.org>,
        Richard Weinberger <richard@....at>,
        Rich Felker <dalias@...c.org>,
        Russell King <linux@...linux.org.uk>,
        Serge Semin <fancer.lancer@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
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        Vineet Gupta <vgupta@...opsys.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
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Subject: Re: [PATCH 00/30] mm: remove bootmem allocator

On Fri 14-09-18 15:10:15, Mike Rapoport wrote:
[...]
>  326 files changed, 866 insertions(+), 2539 deletions(-)
>  delete mode 100644 include/linux/bootmem.h
>  delete mode 100644 mm/bootmem.c
>  delete mode 100644 mm/nobootmem.c

I _really_ love this part the most! Not only we got rid of the
translation which always has been a headache but also this nicely shows
how having multiple allocators hurt. I believe further cleanups on top
will make the boot allocator even a place where you look and your eyes
do not want to jump out.

I have only went through patches without my acks from the previous
iteration and there are only minor comments. This looks good overall.

Nice work Mike!
-- 
Michal Hocko
SUSE Labs