Fix: update writeback instrumentation for kernel 4.14

[lttng-modules.git] / lttng-ring-buffer-metadata-client.h

diff --git a/lttng-ring-buffer-metadata-client.h b/lttng-ring-buffer-metadata-client.h
index c441372e3a45245ba34191d63ef1f976bfd67ccd..1d03591bb2b54147287ffdf35da4e3cb15c53fe1 100644 (file)
--- a/lttng-ring-buffer-metadata-client.h
+++ b/lttng-ring-buffer-metadata-client.h
@@ -58,7 +58,8 @@ static inline
 size_t record_header_size(const struct lib_ring_buffer_config *config,
                                 struct channel *chan, size_t offset,
                                 size_t *pre_header_padding,
-                                struct lib_ring_buffer_ctx *ctx)
+                                struct lib_ring_buffer_ctx *ctx,
+                                void *client_ctx)
 {
        return 0;
 }
@@ -74,7 +75,8 @@ static
 size_t client_record_header_size(const struct lib_ring_buffer_config *config,
                                 struct channel *chan, size_t offset,
                                 size_t *pre_header_padding,
-                                struct lib_ring_buffer_ctx *ctx)
+                                struct lib_ring_buffer_ctx *ctx,
+                                void *client_ctx)
 {
        return 0;
 }
@@ -312,7 +314,15 @@ void lttng_buffer_read_close(struct lib_ring_buffer *buf)
 static
 int lttng_event_reserve(struct lib_ring_buffer_ctx *ctx, uint32_t event_id)
 {
-       return lib_ring_buffer_reserve(&client_config, ctx);
+       int ret;
+
+       ret = lib_ring_buffer_reserve(&client_config, ctx, NULL);
+       if (ret)
+               return ret;
+       lib_ring_buffer_backend_get_pages(&client_config, ctx,
+                       &ctx->backend_pages);
+       return 0;
+
 }
 
 static