[lttng-dev] [PATCH lttng-modules] Fix: update kmem instrumentation for kernel 4.15

[Michael Jeanson]

See upstream commit:

  commit 2d4894b5d2ae0fe1725ea7abd57b33bfbbe45492
  Author: Mel Gorman <mgorman at techsingularity.net>
  Date:   Wed Nov 15 17:37:59 2017 -0800

    mm: remove cold parameter from free_hot_cold_page*

Signed-off-by: Michael Jeanson <mjeanson at efficios.com>
---
 instrumentation/events/lttng-module/kmem.h | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/instrumentation/events/lttng-module/kmem.h b/instrumentation/events/lttng-module/kmem.h
index ad7bf77..c3fa25a 100644
--- a/instrumentation/events/lttng-module/kmem.h
+++ b/instrumentation/events/lttng-module/kmem.h
@@ -132,11 +132,33 @@ LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free_direct, kmem_mm_page_free_direct,
 	)
 )
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0))
+LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free_batched, kmem_mm_page_free_batched,
+
+	TP_PROTO(struct page *page),
+
+	TP_ARGS(page),
+
+	TP_FIELDS(
+		ctf_integer_hex(struct page *, page, page)
+		ctf_integer(unsigned long, pfn, page_to_pfn(page))
+	)
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
 LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free_batched, kmem_mm_page_free_batched,
+
+	TP_PROTO(struct page *page, int cold),
+
+	TP_ARGS(page, cold),
+
+	TP_FIELDS(
+		ctf_integer_hex(struct page *, page, page)
+		ctf_integer(unsigned long, pfn, page_to_pfn(page))
+		ctf_integer(int, cold, cold)
+	)
+)
 #else
 LTTNG_TRACEPOINT_EVENT_MAP(mm_pagevec_free, kmem_pagevec_free,
-#endif
 
 	TP_PROTO(struct page *page, int cold),
 
@@ -148,6 +170,7 @@ LTTNG_TRACEPOINT_EVENT_MAP(mm_pagevec_free, kmem_pagevec_free,
 		ctf_integer(int, cold, cold)
 	)
 )
+#endif
 
 LTTNG_TRACEPOINT_EVENT_MAP(mm_page_alloc, kmem_mm_page_alloc,
 
-- 
2.7.4