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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-05-21 18:36:40 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-05-21 18:36:40 +0900 |
| commit | 06eb4cc2e7ad1b32a3b2580eff772c29b53a2cc6 (patch) | |
| tree | c3e64d5ee6ffdf548c863bf64ec2aed704029fc3 /kernel/user.c | |
| parent | 6ab9028d00da2ed34f46a72fa3271b04a402f1e1 (diff) | |
| parent | 36e9d2ebcc15d029b33f42a36146ab5a5bcfcfe7 (diff) | |
Merge branch 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull more cgroup fixes from Tejun Heo:
"Three more patches to fix cgroup_freezer breakage due to the recent
cgroup internal locking changes - an operation cgroup_freezer was
using now requires sleepable context and cgroup_freezer was invoking
that while holding a spin lock. cgroup_freezer was using an overly
elaborate hierarchical locking scheme.
While it's possible to convert the hierarchical spinlocks directly to
mutexes, this patch simplifies the overall locking so that it uses a
global mutex. This has the added benefit of avoiding iterating
potentially huge number of tasks under a spinlock. While the patch is
on the larger side in the devel cycle, the changes made are mostly
straight-forward and the locking logic is a lot simpler afterwards"
* 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: fix rcu_read_lock() leak in update_if_frozen()
cgroup_freezer: replace freezer->lock with freezer_mutex
cgroup: introduce task_css_is_root()
Diffstat (limited to 'kernel/user.c')
0 files changed, 0 insertions, 0 deletions