diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-16 15:02:07 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-16 15:02:07 -0400 |
commit | ff89acc563a0bd49965674f56552ad6620415fe2 (patch) | |
tree | 7c0f0ff183689f482e3cb03a67bc31bf89f826df | |
parent | 264b83c07a84223f0efd0d1db9ccc66d6f88288f (diff) | |
parent | 615ee5443ff9bedd356dc6865f3e9c276ce434ea (diff) |
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU fixes from Paul McKenney:
"A couple of fixes for RCU regressions:
- A boneheaded boolean-logic bug that resulted in excessive delays on
boot, hibernation and suspend that was reported by Borislav Petkov,
Bjørn Mork, and Joerg Roedel. The fix inserts a single "!".
- A fix for a boot-time splat due to allocating from bootmem too late
in boot, fix courtesy of Sasha Levin with additional help from
Yinghai Lu."
* 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
rcu: Don't allocate bootmem from rcu_init()
rcu: Fix comparison sense in rcu_needs_cpu()
-rw-r--r-- | kernel/rcutree_plugin.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index 170814dc418f..3db5a375d8dd 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h | |||
@@ -88,7 +88,7 @@ static void __init rcu_bootup_announce_oddness(void) | |||
88 | #ifdef CONFIG_RCU_NOCB_CPU | 88 | #ifdef CONFIG_RCU_NOCB_CPU |
89 | #ifndef CONFIG_RCU_NOCB_CPU_NONE | 89 | #ifndef CONFIG_RCU_NOCB_CPU_NONE |
90 | if (!have_rcu_nocb_mask) { | 90 | if (!have_rcu_nocb_mask) { |
91 | alloc_bootmem_cpumask_var(&rcu_nocb_mask); | 91 | zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL); |
92 | have_rcu_nocb_mask = true; | 92 | have_rcu_nocb_mask = true; |
93 | } | 93 | } |
94 | #ifdef CONFIG_RCU_NOCB_CPU_ZERO | 94 | #ifdef CONFIG_RCU_NOCB_CPU_ZERO |
@@ -1667,7 +1667,7 @@ int rcu_needs_cpu(int cpu, unsigned long *dj) | |||
1667 | rdtp->last_accelerate = jiffies; | 1667 | rdtp->last_accelerate = jiffies; |
1668 | 1668 | ||
1669 | /* Request timer delay depending on laziness, and round. */ | 1669 | /* Request timer delay depending on laziness, and round. */ |
1670 | if (rdtp->all_lazy) { | 1670 | if (!rdtp->all_lazy) { |
1671 | *dj = round_up(rcu_idle_gp_delay + jiffies, | 1671 | *dj = round_up(rcu_idle_gp_delay + jiffies, |
1672 | rcu_idle_gp_delay) - jiffies; | 1672 | rcu_idle_gp_delay) - jiffies; |
1673 | } else { | 1673 | } else { |