From: Ingo Molnar Date: Mon, 12 May 2008 19:20:46 +0000 (+0200) Subject: ftrace: clean-up-pipe-iteration X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8c523a9d82dbc4f3f7d972df8c0f1eacd83d0d55;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git ftrace: clean-up-pipe-iteration Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ce8ceb8aea6a..42f1926acf73 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -770,12 +770,12 @@ find_next_entry(struct trace_iterator *iter, int *ent_cpu) return next; } -static notrace void -trace_iterator_increment(struct trace_iterator *iter) +static notrace void trace_iterator_increment(struct trace_iterator *iter) { iter->idx++; iter->next_idx[iter->cpu]++; iter->next_page_idx[iter->cpu]++; + if (iter->next_page_idx[iter->cpu] >= ENTRIES_PER_PAGE) { struct trace_array_cpu *data = iter->tr->data[iter->cpu]; @@ -785,8 +785,7 @@ trace_iterator_increment(struct trace_iterator *iter) } } -static notrace void -trace_consume(struct trace_iterator *iter) +static notrace void trace_consume(struct trace_iterator *iter) { struct trace_array_cpu *data = iter->tr->data[iter->cpu]; @@ -802,8 +801,7 @@ trace_consume(struct trace_iterator *iter) data->trace_idx = 0; } -static notrace void * -find_next_entry_inc(struct trace_iterator *iter) +static notrace void *find_next_entry_inc(struct trace_iterator *iter) { struct trace_entry *next; int next_cpu = -1; @@ -1871,14 +1869,7 @@ tracing_read_pipe(struct file *filp, char __user *ubuf, cpu_set(cpu, mask); } - while ((entry = find_next_entry(iter, &cpu))) { - - if (!entry) - break; - - iter->ent = entry; - iter->cpu = cpu; - + while ((entry = find_next_entry_inc(iter)) != NULL) { ret = print_trace_fmt(iter); if (!ret) break; @@ -1887,7 +1878,6 @@ tracing_read_pipe(struct file *filp, char __user *ubuf, if (iter->seq.len >= cnt) break; - } for_each_cpu_mask(cpu, mask) {