linux-kernel - Re: mmotm 2010-02-03-20-09 uploaded (mmap.c)

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Date:	Thu, 04 Feb 2010 10:14:55 -0800
From:	Randy Dunlap <rdunlap@...otime.net>
To:	akpm@...ux-foundation.org
CC:	linux-kernel@...r.kernel.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: mmotm 2010-02-03-20-09 uploaded (mmap.c)

On 02/03/10 20:09, akpm@...ux-foundation.org wrote:
> The mm-of-the-moment snapshot 2010-02-03-20-09 has been uploaded to
>
>     http://userweb.kernel.org/~akpm/mmotm/
>
> and will soon be available at
>
>     git://zen-kernel.org/kernel/mmotm.git
>
> It contains the following patches against 2.6.33-rc6:


In some config cases, this patch seems to have a problem:
   sysctl-clean-up-vm-related-variable-declarations.patch

In mm/mmap.c:
+#ifdef HAVE_ARCH_PICK_MMAP_LAYOUT
+/* Used by each architecture's private code and sysctl. */
+int sysctl_legacy_va_layout;
+#endif

mm/mmap.c:92: error: expected identifier or '(' before numeric constant

I guess that sometimes sysctl_legacy_va_layout is a #define:
from include/linux/mm.h:

#ifdef CONFIG_SYSCTL
extern int sysctl_legacy_va_layout;
#else
#define sysctl_legacy_va_layout 0
#endif

and indeed the failing builds do not have CONFIG_SYSCTL enabled.


-- 
~Randy
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