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Subject[tip:x86/uv] x86, UV: Allow for non-consecutive sockets
Commit-ID:  9c9153db22870c3f37add83bea30500fcc268a73
Gitweb: http://git.kernel.org/tip/9c9153db22870c3f37add83bea30500fcc268a73
Author: cpw@sgi.com <cpw@sgi.com>
AuthorDate: Tue, 21 Jun 2011 07:21:28 -0500
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 21 Jun 2011 14:50:32 +0200

x86, UV: Allow for non-consecutive sockets

Fix for the topology in which there is a socket 1 on a blade
with no socket 0.

Only call make_per_cpu_thp() for present sockets.
We have only seen this fail for internal configurations.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Link: http://lkml.kernel.org/r/20110621122242.363757364@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/platform/uv/tlb_uv.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index 34be650..7623b08 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -1752,10 +1752,10 @@ static int __init summarize_uvhub_sockets(int nuvhubs,
sdp = &bdp->socket[socket];
if (scan_sock(sdp, bdp, &smaster, &hmaster))
return 1;
+ make_per_cpu_thp(smaster);
}
socket++;
socket_mask = (socket_mask >> 1);
- make_per_cpu_thp(smaster);
}
}
return 0;

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