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authorLi Zefan <lizf@cn.fujitsu.com>2009-12-11 15:45:50 +0800
committerIngo Molnar <mingo@elte.hu>2009-12-11 09:17:03 +0100
commit0bb38a5cdeb39f543657ec6fb9950343d2de6918 (patch)
tree52198d56b8f0301ae553288d2ff2c4f5d5409519 /mm
parent0f24f1287a86b198c1e4bd4ce45e8565e40ff804 (diff)
downloadop-kernel-dev-0bb38a5cdeb39f543657ec6fb9950343d2de6918.zip
op-kernel-dev-0bb38a5cdeb39f543657ec6fb9950343d2de6918.tar.gz
tracing, slab: Fix no callsite ifndef CONFIG_KMEMTRACE
For slab, if CONFIG_KMEMTRACE and CONFIG_DEBUG_SLAB are not set, __do_kmalloc() will not track callers: # ./perf record -f -a -R -e kmem:kmalloc ^C # ./perf trace ... perf-2204 [000] 147.376774: kmalloc: call_site=c0529d2d ... perf-2204 [000] 147.400997: kmalloc: call_site=c0529d2d ... Xorg-1461 [001] 147.405413: kmalloc: call_site=0 ... Xorg-1461 [001] 147.405609: kmalloc: call_site=0 ... konsole-1776 [001] 147.405786: kmalloc: call_site=0 ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-mm@kvack.org <linux-mm@kvack.org> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> LKML-Reference: <4B21F8AE.6020804@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm')
-rw-r--r--mm/slab.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 9733bb4..c3d092d 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3649,7 +3649,7 @@ __do_kmalloc_node(size_t size, gfp_t flags, int node, void *caller)
return ret;
}
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_KMEMTRACE)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_TRACING)
void *__kmalloc_node(size_t size, gfp_t flags, int node)
{
return __do_kmalloc_node(size, flags, node,
@@ -3669,7 +3669,7 @@ void *__kmalloc_node(size_t size, gfp_t flags, int node)
return __do_kmalloc_node(size, flags, node, NULL);
}
EXPORT_SYMBOL(__kmalloc_node);
-#endif /* CONFIG_DEBUG_SLAB */
+#endif /* CONFIG_DEBUG_SLAB || CONFIG_TRACING */
#endif /* CONFIG_NUMA */
/**
@@ -3701,7 +3701,7 @@ static __always_inline void *__do_kmalloc(size_t size, gfp_t flags,
}
-#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_KMEMTRACE)
+#if defined(CONFIG_DEBUG_SLAB) || defined(CONFIG_TRACING)
void *__kmalloc(size_t size, gfp_t flags)
{
return __do_kmalloc(size, flags, __builtin_return_address(0));
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