tracing: splice support for tracing_pipe

[safe/jmp/linux-2.6] / kernel / trace / trace.h

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 7b0518a..dbff020 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -353,6 +353,12 @@ struct tracer {
        ssize_t                 (*read)(struct trace_iterator *iter,
                                        struct file *filp, char __user *ubuf,
                                        size_t cnt, loff_t *ppos);
+       ssize_t                 (*splice_read)(struct trace_iterator *iter,
+                                              struct file *filp,
+                                              loff_t *ppos,
+                                              struct pipe_inode_info *pipe,
+                                              size_t len,
+                                              unsigned int flags);
 #ifdef CONFIG_FTRACE_STARTUP_TEST
        int                     (*selftest)(struct tracer *trace,
                                            struct trace_array *tr);