linux-kernel - Re: [patch 5/6] mempolicy: add MPOL_F_RELATIVE

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Message-Id: <20080226001229.aea2f3d5.pj@sgi.com>
Date:	Tue, 26 Feb 2008 00:12:29 -0600
From:	Paul Jackson <pj@....com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	akpm@...ux-foundation.org, clameter@....com,
	Lee.Schermerhorn@...com, ak@...e.de, linux-kernel@...r.kernel.org
Subject: Re: [patch 5/6] mempolicy: add MPOL_F_RELATIVE_NODES flag

David wrote:
+static nodemask_t mpol_relative_nodemask(const nodemask_t *orig,
+					 const nodemask_t *rel)
+{
+	nodemask_t ret;
+	nodemask_t tmp;

Could you avoid needing the nodemask_t 'ret' on the stack, by passing
in a "nodemask_t *" pointer to where you want the resulting nodemask_t
written, rather than by returning it by value?

 static void mpol_relative_nodemask(nodemask_t *ret, const nodemask_t *orig,
					 const nodemask_t *rel)

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.940.382.4214
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