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authorSteven Rostedt <srostedt@redhat.com>2009-09-04 12:12:39 -0400
committerSteven Rostedt <rostedt@goodmis.org>2009-09-04 12:12:39 -0400
commit76f0d07376388f32698ba51b6090a26b90c1342f (patch)
treeea3a2576e7d2ae85d610aa088cb05986a13f03b1 /kernel/trace/trace_boot.c
parent621968cdb2563b667d6ecb484ba91ef4c3a797b3 (diff)
tracing: remove users of tracing_reset
The function tracing_reset is deprecated for outside use of trace.c. The new function to reset the the buffers is tracing_reset_online_cpus. The reason for this is that resetting the buffers while the event trace points are active can corrupt the buffers, because they may be writing at the time of reset. The tracing_reset_online_cpus disables writes and waits for current writers to finish. This patch replaces all users of tracing_reset except for the latency tracers. Those changes require more work and will be removed in the following patches. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_boot.c')
-rw-r--r--kernel/trace/trace_boot.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
index a29ef23ffb47..863139327816 100644
--- a/kernel/trace/trace_boot.c
+++ b/kernel/trace/trace_boot.c
@@ -41,14 +41,12 @@ void disable_boot_trace(void)
41 41
42static int boot_trace_init(struct trace_array *tr) 42static int boot_trace_init(struct trace_array *tr)
43{ 43{
44 int cpu;
45 boot_trace = tr; 44 boot_trace = tr;
46 45
47 if (!tr) 46 if (!tr)
48 return 0; 47 return 0;
49 48
50 for_each_cpu(cpu, cpu_possible_mask) 49 tracing_reset_online_cpus(tr);
51 tracing_reset(tr, cpu);
52 50
53 tracing_sched_switch_assign_trace(tr); 51 tracing_sched_switch_assign_trace(tr);
54 return 0; 52 return 0;