Cleanup: remove unused EXTCFLAGS from Makefile

[lttng-modules.git] / include / instrumentation / events / writeback.h

diff --git a/include/instrumentation/events/writeback.h b/include/instrumentation/events/writeback.h
index f05708a8376c6f949665eae06b19c4087977cf75..99aafde4b0d5d8c4100a354ed17bd38442da1e50 100644 (file)
--- a/include/instrumentation/events/writeback.h
+++ b/include/instrumentation/events/writeback.h
@@ -65,7 +65,17 @@ static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
 
 #endif
 
-#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0))
+/*
+ * Keep this macro around to track changes in the valid values for `state`.
+ * Eventually, we will have a enum to describe that field. If the macro is
+ * changed by an upstream kernel, the fact that we have a redefinition here
+ * will generate a compiler warning.
+ */
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
+       LTTNG_KERNEL_RANGE(4,14,218, 4,15,0) ||                 \
+       LTTNG_KERNEL_RANGE(4,19,172, 4,20,0) ||                 \
+       LTTNG_KERNEL_RANGE(5,4,94, 5,5,0) ||                    \
+       LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,141, 4,16,0,0))
 #define show_inode_state(state)                                        \
        __print_flags(state, "|",                               \
                {I_DIRTY_SYNC,          "I_DIRTY_SYNC"},        \