X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=wrapper%2Ftrace-clock.c;h=6ec952b9753fc79febf33e025e05e6bd2b009136;hb=dd054d094b5d0bb7248ecfd32b021e124ed2b774;hp=1b7a21767289d4f122a6e393bb37a7430c57026b;hpb=b07252070edd244987bf160c1ee488d4796bb3a3;p=lttng-modules.git

diff --git a/wrapper/trace-clock.c b/wrapper/trace-clock.c
index 1b7a2176..6ec952b9 100644
--- a/wrapper/trace-clock.c
+++ b/wrapper/trace-clock.c
@@ -21,9 +21,13 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "trace-clock.h"
+#include <wrapper/trace-clock.h>
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0))
-DEFINE_PER_CPU(local_t, lttng_last_tsc);
+#ifdef LTTNG_USE_NMI_SAFE_CLOCK
+DEFINE_PER_CPU(u64, lttng_last_tsc);
 EXPORT_PER_CPU_SYMBOL(lttng_last_tsc);
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)) */
+#endif /* #ifdef LTTNG_USE_NMI_SAFE_CLOCK */
+
+#ifdef LTTNG_CLOCK_NMI_SAFE_BROKEN
+#warning "Your kernel implements a bogus nmi-safe clock source. Falling back to the non-nmi-safe clock source, which discards events traced from NMI context. Upgrade your kernel to resolve this situation."
+#endif