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tracing: Pass trace_array to set_flag callback

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As options (flags) may affect instances instead of being global
the set_flag() callbacks need to receive the trace_array descriptor
of the instance they will be modifying.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat)
2014-01-10 11:13:54 -05:00
committed by Steven Rostedt
parent 6d0abeca32
commit 8c1a49aedb
8 changed files with 27 additions and 17 deletions
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kernel/trace/trace.c
+10 -8
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@@ -73,7 +73,8 @@ static struct tracer_flags dummy_tracer_flags = {
.opts = dummy_tracer_opt
};
static int dummy_set_flag(u32 old_flags, u32 bit, int set)
static int
dummy_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
{
return 0;
}
@@ -3339,13 +3340,14 @@ static int tracing_trace_options_show(struct seq_file *m, void *v)
return 0;
}
static int __set_tracer_option(struct tracer *trace,
static int __set_tracer_option(struct trace_array *tr,
struct tracer_flags *tracer_flags,
struct tracer_opt *opts, int neg)
{
struct tracer *trace = tr->current_trace;
int ret;
ret = trace->set_flag(tracer_flags->val, opts->bit, !neg);
ret = trace->set_flag(tr, tracer_flags->val, opts->bit, !neg);
if (ret)
return ret;
@@ -3357,8 +3359,9 @@ static int __set_tracer_option(struct tracer *trace,
}
/* Try to assign a tracer specific option */
static int set_tracer_option(struct tracer *trace, char *cmp, int neg)
static int set_tracer_option(struct trace_array *tr, char *cmp, int neg)
{
struct tracer *trace = tr->current_trace;
struct tracer_flags *tracer_flags = trace->flags;
struct tracer_opt *opts = NULL;
int i;
@@ -3367,8 +3370,7 @@ static int set_tracer_option(struct tracer *trace, char *cmp, int neg)
opts = &tracer_flags->opts[i];
if (strcmp(cmp, opts->name) == 0)
return __set_tracer_option(trace, trace->flags,
opts, neg);
return __set_tracer_option(tr, trace->flags, opts, neg);
}
return -EINVAL;
@@ -3440,7 +3442,7 @@ static int trace_set_options(struct trace_array *tr, char *option)
/* If no option could be set, test the specific tracer options */
if (!trace_options[i])
ret = set_tracer_option(tr->current_trace, cmp, neg);
ret = set_tracer_option(tr, cmp, neg);
mutex_unlock(&trace_types_lock);
@@ -5689,7 +5691,7 @@ trace_options_write(struct file *filp, const char __user *ubuf, size_t cnt,
if (!!(topt->flags->val & topt->opt->bit) != val) {
mutex_lock(&trace_types_lock);
ret = __set_tracer_option(topt->tr->current_trace, topt->flags,
ret = __set_tracer_option(topt->tr, topt->flags,
topt->opt, !val);
mutex_unlock(&trace_types_lock);
if (ret)