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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 13:52:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-09 13:52:12 -0700 |
| commit | abde77eb5c66b2f98539c4644b54f34b7e179e6b (patch) | |
| tree | cc6f6142641397e895fba9a19d0971f3827d7422 /include/linux/sched.h | |
| parent | 23c970608a0931b913f96f6117ea3e9e1bc06959 (diff) | |
| parent | f2b31bb598248c04721cb8485e6091a9feb045ac (diff) | |
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 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 50606a6e73d6..a2cd15855bad 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -726,6 +726,8 @@ struct task_struct { #ifdef CONFIG_CGROUPS /* disallow userland-initiated cgroup migration */ unsigned no_cgroup_migration:1; + /* task is frozen/stopped (used by the cgroup freezer) */ + unsigned frozen:1; #endif #ifdef CONFIG_BLK_CGROUP /* to be used once the psi infrastructure lands upstream. */ |