Messages in this thread | | | Date | Thu, 18 Dec 2008 08:50:18 -0800 | From | Randy Dunlap <> | Subject | Re: [ltt-dev] [PATCH] Simple LTTng userspace events through debugfs |
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On Wed, 17 Dec 2008 12:32:24 -0500 Mathieu Desnoyers wrote:
> Index: linux-2.6-lttng/ltt/ltt-userspace-event.c > =================================================================== > --- /dev/null 1970-01-01 00:00:00.000000000 +0000 > +++ linux-2.6-lttng/ltt/ltt-userspace-event.c 2008-12-17 12:03:43.000000000 -0500 > @@ -0,0 +1,129 @@ > + > +/** > + * write_event: write a userspace string into the trace stream
Hi Mathieu,
Please make above line:
* write_event - write a userspace string into the trace system
Thanks.
> + * @file: file pointer > + * @user_buf: user string > + * @count: length to copy, including the final NULL > + * @ppos: unused > + * > + * Copy a string into a trace event, in channel "userspace", event "event". > + * Copies until either \n or \0 is reached. > + * On success, returns the number of bytes copied from the source, including the > + * \n or \0 character (if there was one in the count range). It cannot return > + * more than count. > + * Inspired from tracing_mark_write implementation from Steven Rostedt and > + * Ingo Molnar. > + */ > +static ssize_t write_event(struct file *file, const char __user *user_buf, > + size_t count, loff_t *ppos) > +{
--- ~Randy
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