fix: mm, tracing: record slab name for kmem_cache_free() (v5.12)

[lttng-modules.git] / instrumentation / events / lttng-module / kmem.h

diff --git a/instrumentation/events/lttng-module/kmem.h b/instrumentation/events/lttng-module/kmem.h
index b134620a92ed13a3e98bb5f66333ef8a155ee77c..d787ea5463e9d03b84d7dbd5cdb3f71bfab6a249 100644 (file)
--- a/instrumentation/events/lttng-module/kmem.h
+++ b/instrumentation/events/lttng-module/kmem.h
@@ -87,6 +87,32 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_alloc_node, kmem_cache_alloc_node,
        TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
 )
 
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,12,0))
+LTTNG_TRACEPOINT_EVENT(kfree,
+
+       TP_PROTO(unsigned long call_site, const void *ptr),
+
+       TP_ARGS(call_site, ptr),
+
+       TP_FIELDS(
+               ctf_integer_hex(unsigned long, call_site, call_site)
+               ctf_integer_hex(const void *, ptr, ptr)
+       )
+)
+
+LTTNG_TRACEPOINT_EVENT(kmem_cache_free,
+
+       TP_PROTO(unsigned long call_site, const void *ptr, const char *name),
+
+       TP_ARGS(call_site, ptr, name),
+
+       TP_FIELDS(
+               ctf_integer_hex(unsigned long, call_site, call_site)
+               ctf_integer_hex(const void *, ptr, ptr)
+               ctf_string(name, name)
+       )
+)
+#else
 LTTNG_TRACEPOINT_EVENT_CLASS(kmem_free,
 
        TP_PROTO(unsigned long call_site, const void *ptr),
@@ -114,6 +140,7 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_free, kmem_cache_free,
 
        TP_ARGS(call_site, ptr)
 )
+#endif
 
 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
 LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free, kmem_mm_page_free,