diff options
| author | Steven Rostedt <srostedt@redhat.com> | 2012-08-02 16:32:10 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-03-15 05:34:42 +0100 |
| commit | ccb469a198cffac94a7eea0b69f715f06e2ddf15 (patch) | |
| tree | a4de18987f64f115373a22379eef17d6d30ce9b8 /include | |
| parent | tracing: Encapsulate global_trace and remove dependencies on global vars (diff) | |
| download | linux-ccb469a198cffac94a7eea0b69f715f06e2ddf15.tar.xz linux-ccb469a198cffac94a7eea0b69f715f06e2ddf15.zip | |
tracing: Pass the ftrace_file to the buffer lock reserve code
Pass the struct ftrace_event_file *ftrace_file to the
trace_event_buffer_lock_reserve() (new function that replaces the
trace_current_buffer_lock_reserver()).
The ftrace_file holds a pointer to the trace_array that is in use.
In the case of multiple buffers with different trace_arrays, this
allows different events to be recorded into different buffers.
Also fixed some of the stale comments in include/trace/ftrace.h
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ftrace_event.h | 7 | ||||
| -rw-r--r-- | include/trace/ftrace.h | 9 |
2 files changed, 12 insertions, 4 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index c7191d482f98..fd28c170c597 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -128,6 +128,13 @@ enum print_line_t { void tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags, int pc); +struct ftrace_event_file; + +struct ring_buffer_event * +trace_event_buffer_lock_reserve(struct ring_buffer **current_buffer, + struct ftrace_event_file *ftrace_file, + int type, unsigned long len, + unsigned long flags, int pc); struct ring_buffer_event * trace_current_buffer_lock_reserve(struct ring_buffer **current_buffer, int type, unsigned long len, diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 191d9661e277..e5d140a91fd7 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -414,7 +414,8 @@ static inline notrace int ftrace_get_offsets_##call( \ * * static void ftrace_raw_event_<call>(void *__data, proto) * { - * struct ftrace_event_call *event_call = __data; + * struct ftrace_event_file *ftrace_file = __data; + * struct ftrace_event_call *event_call = ftrace_file->event_call; * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets; * struct ring_buffer_event *event; * struct ftrace_raw_<call> *entry; <-- defined in stage 1 @@ -428,7 +429,7 @@ static inline notrace int ftrace_get_offsets_##call( \ * * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args); * - * event = trace_current_buffer_lock_reserve(&buffer, + * event = trace_event_buffer_lock_reserve(&buffer, ftrace_file, * event_<call>->event.type, * sizeof(*entry) + __data_size, * irq_flags, pc); @@ -440,7 +441,7 @@ static inline notrace int ftrace_get_offsets_##call( \ * __array macros. * * if (!filter_current_check_discard(buffer, event_call, entry, event)) - * trace_current_buffer_unlock_commit(buffer, + * trace_nowake_buffer_unlock_commit(buffer, * event, irq_flags, pc); * } * @@ -533,7 +534,7 @@ ftrace_raw_event_##call(void *__data, proto) \ \ __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ \ - event = trace_current_buffer_lock_reserve(&buffer, \ + event = trace_event_buffer_lock_reserve(&buffer, ftrace_file, \ event_call->event.type, \ sizeof(*entry) + __data_size, \ irq_flags, pc); \ |