diff options
-rw-r--r-- | kernel/trace/trace.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index d8d899f3bd6f..bdaf60d3d337 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c | |||
@@ -3061,28 +3061,31 @@ struct dentry *tracing_dentry_percpu(void) | |||
3061 | static void tracing_init_debugfs_percpu(long cpu) | 3061 | static void tracing_init_debugfs_percpu(long cpu) |
3062 | { | 3062 | { |
3063 | struct dentry *d_percpu = tracing_dentry_percpu(); | 3063 | struct dentry *d_percpu = tracing_dentry_percpu(); |
3064 | struct dentry *entry; | 3064 | struct dentry *entry, *d_cpu; |
3065 | /* strlen(trace_pipe) + MAX(log10(cpu)) + '\0' */ | 3065 | /* strlen(cpu) + MAX(log10(cpu)) + '\0' */ |
3066 | char filename[17]; | 3066 | char cpu_dir[7]; |
3067 | 3067 | ||
3068 | if (cpu > 999 || cpu < 0) | 3068 | if (cpu > 999 || cpu < 0) |
3069 | return; | 3069 | return; |
3070 | 3070 | ||
3071 | /* per cpu trace_pipe */ | 3071 | sprintf(cpu_dir, "cpu%ld", cpu); |
3072 | sprintf(filename, "trace_pipe%ld", cpu); | 3072 | d_cpu = debugfs_create_dir(cpu_dir, d_percpu); |
3073 | if (!d_cpu) { | ||
3074 | pr_warning("Could not create debugfs '%s' entry\n", cpu_dir); | ||
3075 | return; | ||
3076 | } | ||
3073 | 3077 | ||
3074 | entry = debugfs_create_file(filename, 0444, d_percpu, | 3078 | /* per cpu trace_pipe */ |
3079 | entry = debugfs_create_file("trace_pipe", 0444, d_cpu, | ||
3075 | (void *) cpu, &tracing_pipe_fops); | 3080 | (void *) cpu, &tracing_pipe_fops); |
3076 | if (!entry) | 3081 | if (!entry) |
3077 | pr_warning("Could not create debugfs '%s' entry\n", filename); | 3082 | pr_warning("Could not create debugfs 'trace_pipe' entry\n"); |
3078 | 3083 | ||
3079 | /* per cpu trace */ | 3084 | /* per cpu trace */ |
3080 | sprintf(filename, "trace%ld", cpu); | 3085 | entry = debugfs_create_file("trace", 0444, d_cpu, |
3081 | |||
3082 | entry = debugfs_create_file(filename, 0444, d_percpu, | ||
3083 | (void *) cpu, &tracing_fops); | 3086 | (void *) cpu, &tracing_fops); |
3084 | if (!entry) | 3087 | if (!entry) |
3085 | pr_warning("Could not create debugfs '%s' entry\n", filename); | 3088 | pr_warning("Could not create debugfs 'trace' entry\n"); |
3086 | } | 3089 | } |
3087 | 3090 | ||
3088 | #ifdef CONFIG_FTRACE_SELFTEST | 3091 | #ifdef CONFIG_FTRACE_SELFTEST |