From 25ad403f67d7673f38a473ec138d240804785ae3 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 10 Apr 2010 20:24:22 -0700 Subject: [PATCH] sparc64: Add kmemleak annotation to sun4v_build_virq() The only reference we store to this memory is in the form of a physical address, so kmemleak can't see it. Add a kmemleak_not_leak() annotation. It's probably useful to be able to look at a dump of these things either via debugfs or similar, and thus we could at some point store them in some kind of table and therefore get rid of this annotation. Signed-off-by: David S. Miller --- arch/sparc/kernel/irq_64.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index af5c76c..454ce3a 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -648,6 +648,14 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino) bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC); if (unlikely(!bucket)) return 0; + + /* The only reference we store to the IRQ bucket is + * by physical address which kmemleak can't see, tell + * it that this object explicitly is not a leak and + * should be scanned. + */ + kmemleak_not_leak(bucket); + __flush_dcache_range((unsigned long) bucket, ((unsigned long) bucket + sizeof(struct ino_bucket))); -- 2.7.4