Fix: writeback instrumentation for 4.2 kernels

[lttng-modules.git] / lttng-context-nice.c

diff --git a/lttng-context-nice.c b/lttng-context-nice.c
index 974910dfcfe6a881169593cf10d81ddff27afe4e..412dd93af5299f67e8b679d9f1acaf5ad3839442 100644 (file)
--- a/lttng-context-nice.c
+++ b/lttng-context-nice.c
@@ -50,6 +50,13 @@ void nice_record(struct lttng_ctx_field *field,
        chan->ops->event_write(ctx, &nice, sizeof(nice));
 }
 
+static
+void nice_get_value(struct lttng_ctx_field *field,
+               union lttng_ctx_value *value)
+{
+       value->s64 = task_nice(current);
+}
+
 int lttng_add_nice_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
@@ -71,6 +78,8 @@ int lttng_add_nice_to_ctx(struct lttng_ctx **ctx)
        field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
        field->get_size = nice_get_size;
        field->record = nice_record;
+       field->get_value = nice_get_value;
+       lttng_context_update(*ctx);
        wrapper_vmalloc_sync_all();
        return 0;
 }
@@ -79,3 +88,7 @@ EXPORT_SYMBOL_GPL(lttng_add_nice_to_ctx);
 MODULE_LICENSE("GPL and additional rights");
 MODULE_AUTHOR("Mathieu Desnoyers");
 MODULE_DESCRIPTION("Linux Trace Toolkit Nice Context");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+       __stringify(LTTNG_MODULES_MINOR_VERSION) "."
+       __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+       LTTNG_MODULES_EXTRAVERSION);