cgroup: Use lld instead of ld when printing pids controller events_limit

The `events_limit` variable needs to be formatted with %lld and not %ld.
This fixes the following warning discovered by kbuild test robot:

   kernel/cgroup_pids.c: In function 'pids_events_show':
   kernel/cgroup_pids.c:313:24: warning: format '%ld' expects argument of type
   'long int', but argument 3 has type 'long long int' [-Wformat=]
        seq_printf(sf, "max %ld\n", atomic64_read(&pids->events_limit));
                                   ^

tj: Added explicit (s64) cast as atomic64 switches between long long
    and long depending on 32 or 64.

Signed-off-by: Kenny Yu <kennyyu@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/cgroup_pids.c b/kernel/cgroup_pids.c
index 9740ea6762dec73590c84f7fa310c9026740a7ab..2bd673783f1a9520bddd689da959217d77797ce4 100644 (file)
--- a/kernel/cgroup_pids.c
+++ b/kernel/cgroup_pids.c
@@ -310,7 +310,7 @@ static int pids_events_show(struct seq_file *sf, void *v)
 {
        struct pids_cgroup *pids = css_pids(seq_css(sf));
 
-       seq_printf(sf, "max %ld\n", atomic64_read(&pids->events_limit));
+       seq_printf(sf, "max %lld\n", (s64)atomic64_read(&pids->events_limit));
        return 0;
 }