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Date:	Fri, 23 Mar 2012 01:42:51 +0000
From:	Al Viro <>
To:	Andrew Morton <>
Cc:	Konstantin Khlebnikov <>,
	Linus Torvalds <>,
	Minchan Kim <>,
	"" <>,
	"" <>,
	Hugh Dickins <>,
	KOSAKI Motohiro <>,
	Ben Herrenschmidt <>,
	"" <>,
	Christopher Li <>
Subject: Re: [PATCH 00/16] mm: prepare for converting vm->vm_flags to 64-bit

On Thu, Mar 22, 2012 at 04:09:44PM -0700, Andrew Morton wrote:

> > Thanks. Looks like "__nocast" totally undocumented.
> > It would be nice to add something about this into Documentation/sparse.txt
> Yup, Chris has added this to his todo list (thanks!).

Alternatively, we could just remove the remaining instances in the kernel -
cputime_t is the only borderline reasonable one there; xfs ones should be
__bitwise and so should zd_addr_t thing (with cpu_to_le16() moved from
uses of those suckers to macro definitions).  Hell knows - I suspect that
cputime_t also might've been turned into __bitwise u64, but I hadn't checked
if we ever do plain arithmetics on those...
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