From: Jack Steiner <steiner@sgi.com>
To: mingo@elte.hu, tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] x86_64 - UV fix for memory-only blades
Date: Fri, 15 May 2009 14:45:08 -0500 [thread overview]
Message-ID: <20090515194508.GA8305@sgi.com> (raw)
Fix an endcase in handling UV blades that have memory
but no cpus. The calculation of the highest blade number
failed to handle these blades if they appear last in the
configuration.
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
arch/x86/kernel/apic/x2apic_uv_x.c | 1 +
1 file changed, 1 insertion(+)
Index: linux/arch/x86/kernel/apic/x2apic_uv_x.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c 2009-05-15 12:00:59.000000000 -0500
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c 2009-05-15 14:38:16.000000000 -0500
@@ -632,6 +632,7 @@ void __init uv_system_init(void)
pnode = (paddr >> m_val) & pnode_mask;
blade = boot_pnode_to_blade(pnode);
uv_node_to_blade[nid] = blade;
+ max_pnode = max(pnode, max_pnode);
}
map_gru_high(max_pnode);
next reply other threads:[~2009-05-15 19:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-15 19:45 Jack Steiner [this message]
2009-05-19 15:13 ` Yinghai Lu
2009-05-20 16:13 ` Jack Steiner
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