Fix: mm_page_alloc_extfrag instrumentation for kernel 3.18.10

The following commit has been backported from kernel 3.19.2 into
3.18.10, introducing a change to mm_page_alloc_extfrag and therefore
provoking a build failure on a 3.18.10 kernel:

commit a4f3f96f850db69890f47984c60606a2362bee89
Author: Vlastimil Babka <vbabka@suse.cz>
Date:   Wed Feb 11 15:28:15 2015 -0800

    mm: when stealing freepages, also take pages created by splitting buddy page

    commit 99592d598eca62bdbbf62b59941c189176dfc614 upstream.

This patch adds the proper version check to allow building on 3.18.y.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/instrumentation/events/lttng-module/kmem.h b/instrumentation/events/lttng-module/kmem.h
index 83f3488daa746e87f4bb90e6f68c90814575e0a5..171fcb973fb70a8d9f3de03c3cd9549b8f80e100 100644 (file)
--- a/instrumentation/events/lttng-module/kmem.h
+++ b/instrumentation/events/lttng-module/kmem.h
@@ -288,6 +288,7 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE_PRINT(mm_page, mm_page_pcpu_drain,
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,2)      \
        || LTTNG_KERNEL_RANGE(3,14,36, 3,15,0)          \
+       || LTTNG_KERNEL_RANGE(3,18,10, 3,19,0)          \
        || LTTNG_DEBIAN_KERNEL_RANGE(3,16,7,9,0,0, 3,17,0,0,0,0)        \
        || LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,50, 3,14,0,0)      \
        || LTTNG_UBUNTU_KERNEL_RANGE(3,16,7,38, 3,17,0,0))