linux-kernel - Re: [PATCH v2 1/3] zsmalloc: support zsmalloc to ARM, MIPS, SUPERH

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Message-ID: <20120517091942.GA24355@linux-sh.org>
Date:	Thu, 17 May 2012 18:19:42 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Nitin Gupta <ngupta@...are.org>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>,
	Dan Magenheimer <dan.magenheimer@...cle.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Russell King <linux@....linux.org.uk>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Guan Xuetao <gxt@...c.pku.edu.cn>,
	Chen Liqin <liqin.chen@...plusct.com>
Subject: Re: [PATCH v2 1/3] zsmalloc: support zsmalloc to ARM, MIPS, SUPERH

On Thu, May 17, 2012 at 06:06:56PM +0900, Minchan Kim wrote:
> On 05/17/2012 05:32 PM, Paul Mundt wrote:
> > One thing you might consider is providing a stubbed definition that wraps
> > to flush_tlb_kernel_range() in the !SMP case, as this will extend your
> > testing coverage for staging considerably.
> 
> 
> AFAIUC, you mean following as,
> 
> ifndef CONFIG_SMP
> void flush_tlb_kernel_range(unsinged long start, unsigned log end)
> {
> 	local_flush_tlb_kernel_range(start, end);
> }
> #endif
> 
Actually I meant the opposite:

#ifndef CONFIG_SMP
#define local_flush_tlb_kernel_range flush_tlb_kernel_range
#endif

as the UP case is going to be local already. It's a bit hacky, though.
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