linux-kernel - Re: mm: convert vma->vm

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Message-ID: <BANLkTinLdWB+ON=TY=KHyzsrC8gC5bXg7Q@mail.gmail.com>
Date:	Tue, 12 Apr 2011 14:06:51 +0300
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Hugh Dickins <hughd@...gle.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Russell King <linux@....linux.org.uk>
Subject: Re: mm: convert vma->vm_flags to 64bit

On Tue, Apr 12, 2011 at 10:12 AM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
> After next year? All developers don't have to ignore compiler warnings!

At least add vm_flags_t which is sparse-checked, just like we do with gfp_t.

VM_SAO is ppc64 only, so it could be moved into high part,
freeing 1 bit?
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