From: Paul Jackson <pj@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Paul Jackson <pj@sgi.com>,
linux-kernel@vger.kernel.org,
Christoph Lameter <clameter@sgi.com>
Subject: [PATCH] mm: slab cache interleave rotor fix
Date: Sun, 19 Mar 2006 00:58:13 -0800 [thread overview]
Message-ID: <20060319085813.18851.69069.sendpatchset@jackhammer.engr.sgi.com> (raw)
From: Paul Jackson <pj@sgi.com>
The alien cache rotor in mm/slab.c assumes that the first online
node is node 0. Eventually for some archs, especially with hotplug,
this will no longer be true.
Fix the interleave rotor to handle the general case of node numbering.
Signed-off-by: Paul Jackson <pj@sgi.com>
---
mm/slab.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
--- 2.6.16-rc6-mm2.orig/mm/slab.c 2006-03-18 21:40:42.465283732 -0800
+++ 2.6.16-rc6-mm2/mm/slab.c 2006-03-18 21:53:10.440761398 -0800
@@ -835,7 +835,7 @@ static void init_reap_node(int cpu)
node = next_node(cpu_to_node(cpu), node_online_map);
if (node == MAX_NUMNODES)
- node = 0;
+ node = first_node(node_online_map);
__get_cpu_var(reap_node) = node;
}
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.650.933.1373
next reply other threads:[~2006-03-19 8:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-19 8:58 Paul Jackson [this message]
2006-03-20 15:37 ` Christoph Lameter
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