Document last supported kernel version for stable-2.10 branch

[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 3c9a3d8f100c84c433b06e6b2ffbd22ed3db505a..b2c0c82147999d2c09042431cf65ba9313802965 100644 (file)
--- a/lttng-ring-buffer-metadata-client.h
+++ b/lttng-ring-buffer-metadata-client.h
@@ -22,9 +22,9 @@
 
 #include <linux/module.h>
 #include <linux/types.h>
-#include "wrapper/vmalloc.h"   /* for wrapper_vmalloc_sync_all() */
-#include "lttng-events.h"
-#include "lttng-tracer.h"
+#include <wrapper/vmalloc.h>   /* for wrapper_vmalloc_sync_all() */
+#include <lttng-events.h>
+#include <lttng-tracer.h>
 
 static struct lttng_transport lttng_relay_transport;
 
@@ -55,7 +55,7 @@ u64 lib_ring_buffer_clock_read(struct channel *chan)
 }
 
 static inline
-unsigned char record_header_size(const struct lib_ring_buffer_config *config,
+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)
@@ -63,7 +63,7 @@ unsigned char record_header_size(const struct lib_ring_buffer_config *config,
        return 0;
 }
 
-#include "wrapper/ringbuffer/api.h"
+#include <wrapper/ringbuffer/api.h>
 
 static u64 client_ring_buffer_clock_read(struct channel *chan)
 {
@@ -312,7 +312,15 @@ 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);
+       if (ret)
+               return ret;
+       lib_ring_buffer_backend_get_pages(&client_config, ctx,
+                       &ctx->backend_pages);
+       return 0;
+
 }
 
 static