diff options
| author | Tejun Heo <tj@kernel.org> | 2015-09-18 23:54:22 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-09-18 23:54:22 +0200 |
| commit | 4a07c222d3afb00e1113834fee38d23a8e5d71dc (patch) | |
| tree | 10000327cd4426ba55b75b5c9d8954a8bd0bf2a5 /kernel/cgroup.c | |
| parent | cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl() (diff) | |
| download | linux-4a07c222d3afb00e1113834fee38d23a8e5d71dc.tar.xz linux-4a07c222d3afb00e1113834fee38d23a8e5d71dc.zip | |
cgroup: replace "cgroup.populated" with "cgroup.events"
memcg already uses "memory.events" for event reporting and other
controllers may need event reporting too. Let's standardize on
"$SUBSYS.events" interface file for reporting events which don't
happen too frequently and thus can share event notification.
"cgroup.populated" is replaced with "populated" field in
"cgroup.events" and documentation is updated accordingly.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index c24f929fdeb7..75eba25d8dfd 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -611,8 +611,8 @@ static void cgroup_update_populated(struct cgroup *cgrp, bool populated) if (!trigger) break; - if (cgrp->populated_kn) - kernfs_notify(cgrp->populated_kn); + if (cgrp->events_kn) + kernfs_notify(cgrp->events_kn); cgrp = cgroup_parent(cgrp); } while (cgrp); } @@ -3045,9 +3045,10 @@ err_undo_css: goto out_unlock; } -static int cgroup_populated_show(struct seq_file *seq, void *v) +static int cgroup_events_show(struct seq_file *seq, void *v) { - seq_printf(seq, "%d\n", (bool)seq_css(seq)->cgroup->populated_cnt); + seq_printf(seq, "populated %d\n", + (bool)seq_css(seq)->cgroup->populated_cnt); return 0; } @@ -3214,8 +3215,8 @@ static int cgroup_add_file(struct cgroup *cgrp, struct cftype *cft) if (cft->write == cgroup_procs_write) cgrp->procs_kn = kn; - else if (cft->seq_show == cgroup_populated_show) - cgrp->populated_kn = kn; + else if (cft->seq_show == cgroup_events_show) + cgrp->events_kn = kn; return 0; } @@ -4388,9 +4389,9 @@ static struct cftype cgroup_dfl_base_files[] = { .write = cgroup_subtree_control_write, }, { - .name = "cgroup.populated", + .name = "cgroup.events", .flags = CFTYPE_NOT_ON_ROOT, - .seq_show = cgroup_populated_show, + .seq_show = cgroup_events_show, }, { } /* terminate */ }; |