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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 13:52:12 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 13:52:12 -0700 |
commit | abde77eb5c66b2f98539c4644b54f34b7e179e6b (patch) | |
tree | cc6f6142641397e895fba9a19d0971f3827d7422 /kernel/cgroup/cgroup-v1.c | |
parent | Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq (diff) | |
parent | cgroup: never call do_group_exit() with task->frozen bit set (diff) | |
download | linux-dev-abde77eb5c66b2f98539c4644b54f34b7e179e6b.tar.xz linux-dev-abde77eb5c66b2f98539c4644b54f34b7e179e6b.zip |
Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"This includes Roman's cgroup2 freezer implementation.
It's a separate machanism from cgroup1 freezer. Instead of blocking
user tasks in arbitrary uninterruptible sleeps, the new implementation
extends jobctl stop - frozen tasks are trapped in jobctl stop until
thawed and can be killed and ptraced. Lots of thanks to Oleg for
sheperding the effort.
Other than that, there are a few trivial changes"
* 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: never call do_group_exit() with task->frozen bit set
kernel: cgroup: fix misuse of %x
cgroup: get rid of cgroup_freezer_frozen_exit()
cgroup: prevent spurious transition into non-frozen state
cgroup: Remove unused cgrp variable
cgroup: document cgroup v2 freezer interface
cgroup: add tracing points for cgroup v2 freezer
cgroup: make TRACE_CGROUP_PATH irq-safe
kselftests: cgroup: add freezer controller self-tests
kselftests: cgroup: don't fail on cg_kill_all() error in cg_destroy()
cgroup: cgroup v2 freezer
cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
cgroup: implement __cgroup_task_count() helper
cgroup: rename freezer.c into legacy_freezer.c
cgroup: remove extra cgroup_migrate_finish() call
Diffstat (limited to 'kernel/cgroup/cgroup-v1.c')
-rw-r--r-- | kernel/cgroup/cgroup-v1.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index c126b34fd4ff..68ca5de7ec27 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -342,22 +342,6 @@ static struct cgroup_pidlist *cgroup_pidlist_find_create(struct cgroup *cgrp, return l; } -/** - * cgroup_task_count - count the number of tasks in a cgroup. - * @cgrp: the cgroup in question - */ -int cgroup_task_count(const struct cgroup *cgrp) -{ - int count = 0; - struct cgrp_cset_link *link; - - spin_lock_irq(&css_set_lock); - list_for_each_entry(link, &cgrp->cset_links, cset_link) - count += link->cset->nr_tasks; - spin_unlock_irq(&css_set_lock); - return count; -} - /* * Load a cgroup's pidarray with either procs' tgids or tasks' pids */ |