The patch titled
slab: shut down cache_reaper when cpu goes down
has been removed from the -mm tree. Its filename was
slab-shutdown-cache_reaper-when-cpu-goes-down.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: slab: shut down cache_reaper when cpu goes down
From: Christoph Lameter <clameter@xxxxxxx>
Shutdown the cache_reaper if the cpu is brought down and set the
cache_reap.func to NULL. Otherwise hotplug shuts down the reaper for good.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff -puN mm/slab.c~slab-shutdown-cache_reaper-when-cpu-goes-down mm/slab.c
--- a/mm/slab.c~slab-shutdown-cache_reaper-when-cpu-goes-down
+++ a/mm/slab.c
@@ -1279,6 +1279,20 @@ static int __cpuinit cpuup_callback(stru
start_cpu_timer(cpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
+ case CPU_DOWN_PREPARE:
+ /*
+ * Shutdown cache reaper. Note that the cache_chain_mutex is
+ * held so that if cache_reap() is invoked it cannot do
+ * anything expensive but will only modify reap_work
+ * and reschedule the timer.
+ */
+ cancel_rearming_delayed_work(&per_cpu(reap_work, cpu));
+ /* Now the cache_reaper is guaranteed to be not running. */
+ per_cpu(reap_work, cpu).work.func = NULL;
+ break;
+ case CPU_DOWN_FAILED:
+ start_cpu_timer(cpu);
+ break;
case CPU_DEAD:
/*
* Even if all the cpus of a node are down, we don't free the
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
slub-support-concurrent-local-and-remote-frees-and-allocs-on-a-slab.patch
quicklist-support-for-ia64.patch
quicklist-support-for-x86_64.patch
slub-exploit-page-mobility-to-increase-allocation-order.patch
slub-mm-only-make-slub-the-default-slab-allocator.patch
slub-reduce-antifrag-max-order.patch
slub-i386-support.patch
define-percpu-smp-cacheline-align-interface.patch
call-percpu-smp-cacheline-algin-interface.patch
remove-constructor-from-buffer_head.patch
mm-implement-swap-prefetching.patch
revoke-core-code.patch
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