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x86, uv: fix cpumask iterator in uv_bau_init()

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Impact: fix boot crash on UV systems

Commit 76ba0ecda0de9accea9a91cb6dbde46782110e1c "cpumask: use
cpumask_var_t in uv_flush_tlb_others" used cur_cpu as an iterator;
it was supposed to be zero for the code below it.

Reported-by: Cliff Wickman <cpw@sgi.com>
Original-From: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Mike Travis <travis@sgi.com>
Cc: steiner@sgi.com
Cc: <stable@kernel.org>
LKML-Reference: <200903180822.31196.rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Rusty Russell 2009-03-18 08:22:30 +10:30 committed by Ingo Molnar
parent 0ca0f16fd1
commit 2c74d66624
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/tlb_uv.c
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@ -750,7 +750,7 @@ static int __init uv_bau_init(void)
int node; int node;
int nblades; int nblades;
int last_blade; int last_blade;
int cur_cpu = 0; int cur_cpu;
if (!is_uv_system()) if (!is_uv_system())
return 0; return 0;
@ -760,6 +760,7 @@ static int __init uv_bau_init(void)
uv_mmask = (1UL << uv_hub_info->n_val) - 1; uv_mmask = (1UL << uv_hub_info->n_val) - 1;
nblades = 0; nblades = 0;
last_blade = -1; last_blade = -1;
cur_cpu = 0;
for_each_online_node(node) { for_each_online_node(node) {
blade = uv_node_to_blade_id(node); blade = uv_node_to_blade_id(node);
if (blade == last_blade) if (blade == last_blade)