diff options
Diffstat (limited to 'kernel/cgroup/legacy_freezer.c')
| -rw-r--r-- | kernel/cgroup/legacy_freezer.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/cgroup/legacy_freezer.c b/kernel/cgroup/legacy_freezer.c index 074653f964c1..507b8f19a262 100644 --- a/kernel/cgroup/legacy_freezer.c +++ b/kernel/cgroup/legacy_freezer.c @@ -188,13 +188,12 @@ static void freezer_attach(struct cgroup_taskset *tset) if (!(freezer->state & CGROUP_FREEZING)) { __thaw_task(task); } else { - freeze_task(task); - /* clear FROZEN and propagate upwards */ while (freezer && (freezer->state & CGROUP_FROZEN)) { freezer->state &= ~CGROUP_FROZEN; freezer = parent_freezer(freezer); } + freeze_task(task); } } @@ -430,9 +429,11 @@ static ssize_t freezer_write(struct kernfs_open_file *of, if (strcmp(buf, freezer_state_strs(0)) == 0) freeze = false; - else if (strcmp(buf, freezer_state_strs(CGROUP_FROZEN)) == 0) + else if (strcmp(buf, freezer_state_strs(CGROUP_FROZEN)) == 0) { + pr_info_once("Freezing with imperfect legacy cgroup freezer. " + "See cgroup.freeze of cgroup v2\n"); freeze = true; - else + } else return -EINVAL; freezer_change_state(css_freezer(of_css(of)), freeze); |