The patch titled
Subject: smp: Fix use un-initialized cpumask_ipi
has been removed from the -mm tree. Its filename was
smp-fix-use-un-initialized-cpumask_ipi.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Wang YanQing <udknight@xxxxxxxxx>
Subject: smp: Fix use un-initialized cpumask_ipi
c7b798525b502 ("smp: Fix SMP function call empty cpu mask race") use the
un-initialized variable cpumask_ipi when enable CONFIG_CPUMASK_OFFSTACK.
Signed-off-by: Wang YanQing <udknight@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/smp.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN kernel/smp.c~smp-fix-use-un-initialized-cpumask_ipi kernel/smp.c
--- a/kernel/smp.c~smp-fix-use-un-initialized-cpumask_ipi
+++ a/kernel/smp.c
@@ -57,6 +57,9 @@ hotplug_cfd(struct notifier_block *nfb,
if (!zalloc_cpumask_var_node(&cfd->cpumask, GFP_KERNEL,
cpu_to_node(cpu)))
return notifier_from_errno(-ENOMEM);
+ if (!zalloc_cpumask_var_node(&cfd->cpumask_ipi, GFP_KERNEL,
+ cpu_to_node(cpu)))
+ return notifier_from_errno(-ENOMEM);
break;
#ifdef CONFIG_HOTPLUG_CPU
@@ -66,6 +69,7 @@ hotplug_cfd(struct notifier_block *nfb,
case CPU_DEAD:
case CPU_DEAD_FROZEN:
free_cpumask_var(cfd->cpumask);
+ free_cpumask_var(cfd->cpumask_ipi);
break;
#endif
};
_
Patches currently in -mm which might be from udknight@xxxxxxxxx are
origin.patch
linux-next.patch
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