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tracing: Using for_each_set_bit() to simplify trace_pid_write()

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Using for_each_set_bit() to simplify the code.

Link: http://lkml.kernel.org/r/1467645004-11169-1-git-send-email-weiyj_lk@163.com

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Wei Yongjun 2016-07-04 15:10:04 +00:00 committed by Steven Rostedt
parent 501c237525
commit 67f20b0845
1 changed files with 2 additions and 6 deletions
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8
kernel/trace/trace.c
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@ -517,13 +517,9 @@ int trace_pid_write(struct trace_pid_list *filtered_pids,
if (filtered_pids) {
/* copy the current bits to the new max */
pid = find_first_bit(filtered_pids->pids,
filtered_pids->pid_max);
while (pid < filtered_pids->pid_max) {
for_each_set_bit(pid, filtered_pids->pids,
filtered_pids->pid_max) {
set_bit(pid, pid_list->pids);
pid = find_next_bit(filtered_pids->pids,
filtered_pids->pid_max,
pid + 1);
nr_pids++;
}
}