The patch titled
generic-ipi: fix hotplug_cfd()
has been removed from the -mm tree. Its filename was
generic-ipi-fix-hotplug_cfd.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: generic-ipi: fix hotplug_cfd()
From: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
Use CONFIG_HOTPLUG_CPU, not CONFIG_CPU_HOTPLUG
When hot-unpluging a cpu, it will leak memory allocated at cpu hotplug,
but only if CPUMASK_OFFSTACK=y, which is default to n.
The bug was introduced by 8969a5ede0f9e17da4b943712429aef2c9bcd82b
("generic-ipi: remove kmalloc()").
Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
Cc: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/smp.c~generic-ipi-fix-hotplug_cfd kernel/smp.c
--- a/kernel/smp.c~generic-ipi-fix-hotplug_cfd
+++ a/kernel/smp.c
@@ -57,7 +57,7 @@ hotplug_cfd(struct notifier_block *nfb,
return NOTIFY_BAD;
break;
-#ifdef CONFIG_CPU_HOTPLUG
+#ifdef CONFIG_HOTPLUG_CPU
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
_
Patches currently in -mm which might be from xiaoguangrong@xxxxxxxxxxxxxx are
origin.patch
linux-next.patch
generic-ipi-make-struct-call_function_data-lockless.patch
generic-ipi-make-struct-call_function_data-lockless-cleanup.patch
generic-ipi-cleanup-for-generic_smp_call_function_interrupt.patch
kernel-smpc-relocate-some-code.patch
generic-ipi-fix-the-race-between-generic_smp_call_function_-and-hotplug_cfd.patch
generic-ipi-fix-the-race-between-generic_smp_call_function_-and-hotplug_cfd-fix.patch
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