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Subject[for-next][PATCH 1/7] tracing: Using for_each_set_bit() to simplify trace_pid_write()
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

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>
---
kernel/trace/trace.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5fd53a7847bc..dade4c9559cc 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -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++;
}
}
--
2.8.1

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