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tracing/event: Cleanup the useless dentry variable

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Cleanup the useless dentry variable while creating a kernel
event set of files. trace_create_file() warns if it fails to
create the file anyway, and we don't store the dentry anywhere.

v2: Fix a small conflict in kernel/trace/trace_events.c

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
This commit is contained in:
Frederic Weisbecker 2009-09-24 15:27:41 +02:00
parent 737f453fd1
commit f3f3f00924
1 changed files with 11 additions and 12 deletions
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23
kernel/trace/trace_events.c
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@ -898,9 +898,9 @@ event_subsystem_dir(const char *name, struct dentry *d_events)
"'%s/filter' entry\n", name);
}
entry = trace_create_file("enable", 0644, system->entry,
(void *)system->name,
&ftrace_system_enable_fops);
trace_create_file("enable", 0644, system->entry,
(void *)system->name,
&ftrace_system_enable_fops);
return system->entry;
}
@ -912,7 +912,6 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
const struct file_operations *filter,
const struct file_operations *format)
{
struct dentry *entry;
int ret;
/*
@ -930,12 +929,12 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
}
if (call->regfunc)
entry = trace_create_file("enable", 0644, call->dir, call,
enable);
trace_create_file("enable", 0644, call->dir, call,
enable);
if (call->id && call->profile_enable)
entry = trace_create_file("id", 0444, call->dir, call,
id);
trace_create_file("id", 0444, call->dir, call,
id);
if (call->define_fields) {
ret = call->define_fields(call);
@ -944,16 +943,16 @@ event_create_dir(struct ftrace_event_call *call, struct dentry *d_events,
" events/%s\n", call->name);
return ret;
}
entry = trace_create_file("filter", 0644, call->dir, call,
filter);
trace_create_file("filter", 0644, call->dir, call,
filter);
}
/* A trace may not want to export its format */
if (!call->show_format)
return 0;
entry = trace_create_file("format", 0444, call->dir, call,
format);
trace_create_file("format", 0444, call->dir, call,
format);
return 0;
}