On Thu 15-08-13 12:02:26, Tejun Heo wrote:
[...]
> @@ -6030,12 +6050,13 @@ static void cgroup_event_ptable_queue_proc(struct file *file,
> static int cgroup_write_event_control(struct cgroup_subsys_state *css,
> struct cftype *cft, const char *buffer)
> {
> - struct cgroup *cgrp = css->cgroup;
> + struct mem_cgroup *memcg = mem_cgroup_from_css(css);
> struct cgroup_event *event;
> struct cgroup_subsys_state *cfile_css;
> unsigned int efd, cfd;
> struct file *efile;
> struct file *cfile;
> + const char *name;
> char *endp;
> int ret;
AFAICS nothing prevents from registering a new event after css_offline
is done already which would lead to a mem leak. The we would need to do
css_tryget somewhere in the beginning. Or is there anything that would
prevent from that?
Other than that it looks correct to me. After the above concern is
sorted out:
Acked-by: Michal Hocko <mhocko@xxxxxxx>
--
Michal Hocko
SUSE Labs
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