From 60ba77022712c7cda0eda286154bae160446b24a Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Sat, 12 Sep 2009 23:34:04 -0400 Subject: tracing: add filter event logic to special, mmiotrace and boot tracers Now that the pluging tracers use macros to create the structures and automate the exporting of their formats to the format files, they also automatically get a filter file. This patch adds the code to implement the filter logic in the trace recordings. Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 5 ++++- kernel/trace/trace_boot.c | 8 ++++++-- kernel/trace/trace_mmiotrace.c | 10 ++++++++-- 3 files changed, 18 insertions(+), 5 deletions(-) (limited to 'kernel/trace') diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ef82a7fabf3..fd52a19dd17 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1206,6 +1206,7 @@ ftrace_trace_special(void *__tr, unsigned long arg1, unsigned long arg2, unsigned long arg3, int pc) { + struct ftrace_event_call *call = &event_special; struct ring_buffer_event *event; struct trace_array *tr = __tr; struct ring_buffer *buffer = tr->buffer; @@ -1219,7 +1220,9 @@ ftrace_trace_special(void *__tr, entry->arg1 = arg1; entry->arg2 = arg2; entry->arg3 = arg3; - trace_buffer_unlock_commit(buffer, event, 0, pc); + + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, pc); } void diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c index 19bfc75d467..c21d5f3956a 100644 --- a/kernel/trace/trace_boot.c +++ b/kernel/trace/trace_boot.c @@ -129,6 +129,7 @@ struct tracer boot_tracer __read_mostly = void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) { + struct ftrace_event_call *call = &event_boot_call; struct ring_buffer_event *event; struct ring_buffer *buffer; struct trace_boot_call *entry; @@ -150,13 +151,15 @@ void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) goto out; entry = ring_buffer_event_data(event); entry->boot_call = *bt; - trace_buffer_unlock_commit(buffer, event, 0, 0); + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) { + struct ftrace_event_call *call = &event_boot_ret; struct ring_buffer_event *event; struct ring_buffer *buffer; struct trace_boot_ret *entry; @@ -175,7 +178,8 @@ void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) goto out; entry = ring_buffer_event_data(event); entry->boot_ret = *bt; - trace_buffer_unlock_commit(buffer, event, 0, 0); + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, 0); out: preempt_enable(); } diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c index c4c9bbda53d..0acd834659e 100644 --- a/kernel/trace/trace_mmiotrace.c +++ b/kernel/trace/trace_mmiotrace.c @@ -307,6 +307,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, struct trace_array_cpu *data, struct mmiotrace_rw *rw) { + struct ftrace_event_call *call = &event_mmiotrace_rw; struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct trace_mmiotrace_rw *entry; @@ -320,7 +321,9 @@ static void __trace_mmiotrace_rw(struct trace_array *tr, } entry = ring_buffer_event_data(event); entry->rw = *rw; - trace_buffer_unlock_commit(buffer, event, 0, pc); + + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, pc); } void mmio_trace_rw(struct mmiotrace_rw *rw) @@ -334,6 +337,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr, struct trace_array_cpu *data, struct mmiotrace_map *map) { + struct ftrace_event_call *call = &event_mmiotrace_map; struct ring_buffer *buffer = tr->buffer; struct ring_buffer_event *event; struct trace_mmiotrace_map *entry; @@ -347,7 +351,9 @@ static void __trace_mmiotrace_map(struct trace_array *tr, } entry = ring_buffer_event_data(event); entry->map = *map; - trace_buffer_unlock_commit(buffer, event, 0, pc); + + if (!filter_check_discard(call, entry, buffer, event)) + trace_buffer_unlock_commit(buffer, event, 0, pc); } void mmio_trace_mapping(struct mmiotrace_map *map) -- cgit v1.2.3-18-g5258