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authorYinghai Lu <yinghai@kernel.org>2009-03-30 20:37:20 -0700
committerIngo Molnar <mingo@elte.hu>2009-04-03 19:14:44 +0200
commit9756b15e1b58453a6fd54b85c1ad8515209e10bb (patch)
tree1b6ba55e845bbd07460c0c4e061641564b9a69b2 /include/linux/irq.h
parent8fe74cf053de7ad2124a894996f84fa890a81093 (diff)
downloadop-kernel-dev-9756b15e1b58453a6fd54b85c1ad8515209e10bb.zip
op-kernel-dev-9756b15e1b58453a6fd54b85c1ad8515209e10bb.tar.gz
irq: fix cpumask memory leak on offstack cpumask kernels
Need to free the old cpumask for affinity and pending_mask. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Rusty Russell <rusty@rustcorp.com.au> LKML-Reference: <49D18FF0.50707@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 974890b..99d147e 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -482,6 +482,16 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
#endif
}
+static inline void free_desc_masks(struct irq_desc *old_desc,
+ struct irq_desc *new_desc)
+{
+ free_cpumask_var(old_desc->affinity);
+
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+ free_cpumask_var(old_desc->pending_mask);
+#endif
+}
+
#else /* !CONFIG_SMP */
static inline bool init_alloc_desc_masks(struct irq_desc *desc, int cpu,
@@ -495,6 +505,10 @@ static inline void init_copy_desc_masks(struct irq_desc *old_desc,
{
}
+static inline void free_desc_masks(struct irq_desc *old_desc,
+ struct irq_desc *new_desc)
+{
+}
#endif /* CONFIG_SMP */
#endif /* _LINUX_IRQ_H */
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