linux-kernel - Re: btrfs build failure in latest git

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Message-ID: <4D2D1936.2070201@cn.fujitsu.com>
Date:	Wed, 12 Jan 2011 11:00:06 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	LKML <linux-kernel@...r.kernel.org>, linux-btrfs@...r.kernel.org,
	Chris Mason <chris.mason@...cle.com>
Subject: Re: btrfs build failure in latest git

Jeff Garzik wrote:
> 
> Tree as of commit 7bc4a4ce68f8c6d064ea949446852e996526f692 dies during btrfs build on x86-64:
> 
>   CC [M]  fs/btrfs/ctree.o
> In file included from fs/btrfs/ctree.c:21:0:
> fs/btrfs/ctree.h:1003:17: error: field ‘super_kobj’ has incomplete type
> fs/btrfs/ctree.h:1074:17: error: field ‘root_kobj’ has incomplete type
> make[2]: *** [fs/btrfs/ctree.o] Error 1
> make[1]: *** [fs/btrfs] Error 2
> make: *** [fs] Error 2
> 

Should be caused by this commit:

commit 57cc7215b70856dc6bae8e55b00ecd7b1d7429b1
Author: Alexey Dobriyan <adobriyan@...il.com>
Date:   Mon Jan 10 08:18:25 2011 +0200

    headers: kobject.h redux
    
    Remove kobject.h from files which don't need it, notably,
    sched.h and fs.h.

So the fix is to include kobject.h explicitly in ctree.h.
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