From: Johannes Weiner <hannes@cmpxchg.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Guenter Roeck <private@roeck-us.net>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: hexagon: build error in -next due to 'mm: memcontrol: per-lruvec stats infrastructure'
Date: Mon, 19 Jun 2017 11:47:17 -0400 [thread overview]
Message-ID: <20170619154717.GA32294@cmpxchg.org> (raw)
In-Reply-To: <20170617153721.GA4382@roeck-us.net>
On Sat, Jun 17, 2017 at 08:37:21AM -0700, Guenter Roeck wrote:
> On Fri, Jun 16, 2017 at 01:37:21PM -0700, wrote:
> > On Fri, 16 Jun 2017 16:15:23 -0400 Johannes Weiner <hannes@cmpxchg.org> wrote:
> >
> > > In any case, memcontrol.h doesn't/shouldn't need hardirq.h. When that
> > > include is removed, the below patch compiles on: x86 allno, x86_64
> > > allno, and my regular x86_64 config:
> > >
> > > ---
> > > Subject: mm-memcontrol-per-lruvec-stats-infrastructure-fix-4
> >
> > Did you try x86_64 allmodconfig? I'm getting a mess:
> >
> > In file included from ./include/linux/mm.h:1032,
> > from ./include/linux/highmem.h:7,
> > from ./include/linux/bio.h:21,
> > from ./include/linux/writeback.h:205,
> > from ./include/linux/memcontrol.h:28,
> > from ./include/linux/swap.h:8,
> > from ./include/linux/suspend.h:4,
> > from arch/x86/kernel/asm-offsets.c:12:
> > ./include/linux/vmstat.h: In function 'lruvec_page_state':
> > ./include/linux/vmstat.h:362: error: implicit declaration of function 'mem_cgroup_disabled'
> > ./include/linux/vmstat.h:365: error: dereferencing pointer to incomplete type
> > ./include/linux/vmstat.h:365: error: type defaults to 'int' in declaration of 'type name'
> > ...
> >
> > Presumably because we have memcontrol.h indirectly including mm.h which
> > includes vmstat.h (from a stupid place) and with this patch we have
> > vmstat.h including memcontrol.h.
> >
>
> How about the following ? Seems to be less invasive, and it fixes the
> immediate problem.
>
> Guenter
>
> ---
> From 3aa278a36b5f71ff64b28e0cea05182fbcaa72e6 Mon Sep 17 00:00:00 2001
> From: Guenter Roeck <linux@roeck-us.net>
> Date: Sat, 17 Jun 2017 08:15:57 -0700
> Subject: [PATCH] hexagon: Fix build error caused by include file order
>
> hexagon builds fail with the following error message.
> In file included from ./include/linux/memcontrol.h:30:0,
> from ./include/linux/swap.h:8,
> from ./arch/hexagon/include/asm/pgtable.h:27,
> from ./include/linux/mm.h:70,
> from arch/hexagon/kernel/asm-offsets.c:28:
> ./include/linux/vmstat.h: In function '__inc_zone_page_state':
> ./include/linux/vmstat.h:294:2: error:
> implicit declaration of function 'page_zone'
>
> Drop unnecessary includes from header files and add missing
> includes to source files to fix the problem.
>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Fixes: fb6646f52c45 ("mm: memcontrol: per-lruvec stats infrastructure")
> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
If they're not needed, all the better. Thanks!
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2017-06-19 15:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-17 15:37 hexagon: build error in -next due to 'mm: memcontrol: per-lruvec stats infrastructure' Guenter Roeck
2017-06-19 15:47 ` Johannes Weiner [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-06-17 15:40 Guenter Roeck
2017-06-14 7:26 Guenter Roeck
2017-06-16 18:49 ` Johannes Weiner
2017-06-16 19:14 ` Andrew Morton
2017-06-16 20:15 ` Johannes Weiner
2017-06-16 20:37 ` Andrew Morton
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