linux-kernel - Re: [PATCH 15/16] mm: use vm_unmapped

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Message-Id: <20121105.202501.1246122770431623794.davem@davemloft.net>
Date:	Mon, 05 Nov 2012 20:25:01 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	walken@...gle.com
Cc:	akpm@...ux-foundation.org, riel@...hat.com, hughd@...gle.com,
	linux-kernel@...r.kernel.org, linux@....linux.org.uk,
	ralf@...ux-mips.org, lethal@...ux-sh.org, cmetcalf@...era.com,
	x86@...nel.org, wli@...omorphy.com, linux-mm@...ck.org,
	linux-arm-kernel@...ts.infradead.org, linux-mips@...ux-mips.org,
	linux-sh@...r.kernel.org, sparclinux@...r.kernel.org
Subject: Re: [PATCH 15/16] mm: use vm_unmapped_area() on sparc32
 architecture

From: Michel Lespinasse <walken@...gle.com>
Date: Mon,  5 Nov 2012 14:47:12 -0800

> Update the sparc32 arch_get_unmapped_area function to make use of
> vm_unmapped_area() instead of implementing a brute force search.
> 
> Signed-off-by: Michel Lespinasse <walken@...gle.com>

Hmmm...

> -	if (flags & MAP_SHARED)
> -		addr = COLOUR_ALIGN(addr);
> -	else
> -		addr = PAGE_ALIGN(addr);

What part of vm_unmapped_area() is going to duplicate this special
aligning logic we need on sparc?
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