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rcu: Don't allocate bootmem from rcu_init()

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When rcu_init() is called we already have slab working, allocating
bootmem at that point results in warnings and an allocation from
slab.  This commit therefore changes alloc_bootmem_cpumask_var() to
alloc_cpumask_var() in rcu_bootup_announce_oddness(), which is called
from rcu_init().

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Tested-by: Robin Holt <holt@sgi.com>

[paulmck: convert to zalloc_cpumask_var(), as suggested by Yinghai Lu.]
This commit is contained in:
Sasha Levin
2013-03-26 11:35:16 -04:00
committed by Paul E. McKenney
parent 6faf72834d
commit 615ee5443f
1 changed files with 1 additions and 1 deletions
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2
kernel/rcutree_plugin.h
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@@ -88,7 +88,7 @@ static void __init rcu_bootup_announce_oddness(void)
#ifdef CONFIG_RCU_NOCB_CPU #ifdef CONFIG_RCU_NOCB_CPU
#ifndef CONFIG_RCU_NOCB_CPU_NONE #ifndef CONFIG_RCU_NOCB_CPU_NONE
if (!have_rcu_nocb_mask) { if (!have_rcu_nocb_mask) {
alloc_bootmem_cpumask_var(&rcu_nocb_mask); zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL);
have_rcu_nocb_mask = true; have_rcu_nocb_mask = true;
} }
#ifdef CONFIG_RCU_NOCB_CPU_ZERO #ifdef CONFIG_RCU_NOCB_CPU_ZERO