linux-kernel - [PATCH 3/6] memblock: Use MEMBLOCK_ALLOC_ACCESSIBLE instead of ANYWHERE in memblock_alloc_try

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Message-Id: <1310457490-3356-4-git-send-email-tj@kernel.org>
Date:	Tue, 12 Jul 2011 09:58:07 +0200
From:	Tejun Heo <tj@...nel.org>
To:	mingo@...hat.com, hpa@...or.com, tglx@...utronix.de,
	benh@...nel.crashing.org, yinghai@...nel.org
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	x86@...nel.org, Tejun Heo <tj@...nel.org>
Subject: [PATCH 3/6] memblock: Use MEMBLOCK_ALLOC_ACCESSIBLE instead of ANYWHERE in memblock_alloc_try_nid()

After node affine allocation fails, memblock_alloc_try_nid() calls
memblock_alloc_base() with @max_addr set to MEMBLOCK_ALLOC_ANYWHERE.
This is inconsistent with memblock_alloc() and what the function's
sole user - sparc/mm/init_64 - expects, although it doesn't make any
difference as sparc64 doesn't have highmem and ACCESSIBLE equals
ANYWHERE.

This patch makes memblock_alloc_try_nid() use ACCESSIBLE instead of
ANYWHERE.  This isn't complete as node affine allocation doesn't
consider memblock.current_limit.  It will be handled with future
changes.

This patch doesn't introduce any behavior difference.

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---
 mm/memblock.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index a0562d1..87e512d 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -612,7 +612,7 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i

 	if (res)
 		return res;
-	return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ANYWHERE);
+	return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
 }

-- 
1.7.6

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