summaryrefslogtreecommitdiffstats
path: root/kernel/trace/trace_sched_switch.c
diff options
context:
space:
mode:
authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-10-31 01:44:53 +0100
committerSteven Rostedt <rostedt@goodmis.org>2014-11-11 18:43:15 +0100
commit243f7610a68a606eb1787c09450a440bf30bebe0 (patch)
treeda33141093d8ba036a45f32b3dfbe5ce8a21dbd7 /kernel/trace/trace_sched_switch.c
parenttracing: Kill the dead code in probe_sched_switch() and probe_sched_wakeup() (diff)
downloadlinux-243f7610a68a606eb1787c09450a440bf30bebe0.tar.xz
linux-243f7610a68a606eb1787c09450a440bf30bebe0.zip
tracing: Move tracing_sched_{switch,wakeup}() into wakeup tracer
The only code that references tracing_sched_switch_trace() and tracing_sched_wakeup_trace() is the wakeup latency tracer. Those two functions use to belong to the sched_switch tracer which has long been removed. These functions were left behind because the wakeup latency tracer used them. But since the wakeup latency tracer is the only one to use them, they should be static functions inside that code. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_sched_switch.c')
-rw-r--r--kernel/trace/trace_sched_switch.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index f7c7f4f1544c..2e293beb186e 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -17,34 +17,6 @@
static int sched_ref;
static DEFINE_MUTEX(sched_register_mutex);
-void
-tracing_sched_switch_trace(struct trace_array *tr,
- struct task_struct *prev,
- struct task_struct *next,
- unsigned long flags, int pc)
-{
- struct ftrace_event_call *call = &event_context_switch;
- struct ring_buffer *buffer = tr->trace_buffer.buffer;
- struct ring_buffer_event *event;
- struct ctx_switch_entry *entry;
-
- event = trace_buffer_lock_reserve(buffer, TRACE_CTX,
- sizeof(*entry), flags, pc);
- if (!event)
- return;
- entry = ring_buffer_event_data(event);
- entry->prev_pid = prev->pid;
- entry->prev_prio = prev->prio;
- entry->prev_state = prev->state;
- entry->next_pid = next->pid;
- entry->next_prio = next->prio;
- entry->next_state = next->state;
- entry->next_cpu = task_cpu(next);
-
- if (!call_filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, flags, pc);
-}
-
static void
probe_sched_switch(void *ignore, struct task_struct *prev, struct task_struct *next)
{
@@ -55,34 +27,6 @@ probe_sched_switch(void *ignore, struct task_struct *prev, struct task_struct *n
tracing_record_cmdline(next);
}
-void
-tracing_sched_wakeup_trace(struct trace_array *tr,
- struct task_struct *wakee,
- struct task_struct *curr,
- unsigned long flags, int pc)
-{
- struct ftrace_event_call *call = &event_wakeup;
- struct ring_buffer_event *event;
- struct ctx_switch_entry *entry;
- struct ring_buffer *buffer = tr->trace_buffer.buffer;
-
- event = trace_buffer_lock_reserve(buffer, TRACE_WAKE,
- sizeof(*entry), flags, pc);
- if (!event)
- return;
- entry = ring_buffer_event_data(event);
- entry->prev_pid = curr->pid;
- entry->prev_prio = curr->prio;
- entry->prev_state = curr->state;
- entry->next_pid = wakee->pid;
- entry->next_prio = wakee->prio;
- entry->next_state = wakee->state;
- entry->next_cpu = task_cpu(wakee);
-
- if (!call_filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, flags, pc);
-}
-
static void
probe_sched_wakeup(void *ignore, struct task_struct *wakee, int success)
{