copy_from_user and memset

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

diff --git a/ltt-ring-buffer-client.h b/ltt-ring-buffer-client.h
index 7ed86fbb5280a2c275ca89c24b9b4ec66257e5df..f71047f1a999e0f2971fdd827cf6df08aa19965a 100644 (file)
--- a/ltt-ring-buffer-client.h
+++ b/ltt-ring-buffer-client.h
@@ -480,6 +480,13 @@ void ltt_event_write(struct lib_ring_buffer_ctx *ctx, const void *src,
        lib_ring_buffer_write(&client_config, ctx, src, len);
 }
 
+static
+void ltt_event_write_from_user(struct lib_ring_buffer_ctx *ctx,
+                              const void __user *src, size_t len)
+{
+       lib_ring_buffer_copy_from_user(&client_config, ctx, src, len);
+}
+
 static
 wait_queue_head_t *ltt_get_writer_buf_wait_queue(struct channel *chan, int cpu)
 {
@@ -519,6 +526,7 @@ static struct ltt_transport ltt_relay_transport = {
                .event_reserve = ltt_event_reserve,
                .event_commit = ltt_event_commit,
                .event_write = ltt_event_write,
+               .event_write_from_user = ltt_event_write_from_user,
                .packet_avail_size = NULL,      /* Would be racy anyway */
                .get_writer_buf_wait_queue = ltt_get_writer_buf_wait_queue,
                .get_hp_wait_queue = ltt_get_hp_wait_queue,