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authorVarun Wadekar <vwadekar@nvidia.com>2011-12-14 15:33:34 +0530
committerVarun Wadekar <vwadekar@nvidia.com>2011-12-14 15:33:34 +0530
commit638bc555a05c39ced59744c79c0461536782808d (patch)
tree42bf9c8cdfd44898be31bc31cf2e4743a2484cf4 /kernel/trace
parentf05a661e2247076a0c0e5a09ee8c4397b0de855e (diff)
parentcaf4b0430be8296bf644199bf3ed3056c02420c7 (diff)
Merge branch 'linux-3.1.5' into android-tegra-nv-3.1
Conflicts: arch/arm/Kconfig Change-Id: If8aaaf3efcbbf6c9017b38efb6d76ef933f147fa Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ftrace.c1
-rw-r--r--kernel/trace/trace_events.c1
-rw-r--r--kernel/trace/trace_events_filter.c6
3 files changed, 3 insertions, 5 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index c3e4575e7829..48d3762b828a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -151,7 +151,6 @@ void clear_ftrace_function(void)
ftrace_pid_function = ftrace_stub;
}
-#undef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
#ifndef CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST
/*
* For those archs that do not test ftrace_trace_stop in their
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 581876f9f387..c212a7f934ec 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1078,7 +1078,6 @@ event_subsystem_dir(const char *name, struct dentry *d_events)
/* First see if we did not already create this dir */
list_for_each_entry(system, &event_subsystems, list) {
if (strcmp(system->name, name) == 0) {
- __get_system(system);
system->nr_events++;
return system->entry;
}
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 256764ecccd6..bd3c6369f80d 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1766,7 +1766,7 @@ static int replace_system_preds(struct event_subsystem *system,
* replace the filter for the call.
*/
filter = call->filter;
- call->filter = filter_item->filter;
+ rcu_assign_pointer(call->filter, filter_item->filter);
filter_item->filter = filter;
fail = false;
@@ -1821,7 +1821,7 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
filter = call->filter;
if (!filter)
goto out_unlock;
- call->filter = NULL;
+ RCU_INIT_POINTER(call->filter, NULL);
/* Make sure the filter is not being used */
synchronize_sched();
__free_filter(filter);
@@ -1862,7 +1862,7 @@ out:
* string
*/
tmp = call->filter;
- call->filter = filter;
+ rcu_assign_pointer(call->filter, filter);
if (tmp) {
/* Make sure the call is done with the filter */
synchronize_sched();