diff options
| author | Tejun Heo <tj@kernel.org> | 2012-04-01 12:30:01 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-04-01 12:55:00 -0700 |
| commit | 959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch) | |
| tree | 3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /kernel/workqueue.c | |
| parent | a5567932fc926739e29e98487128080f40c61710 (diff) | |
| parent | 48ddbe194623ae089cc0576e60363f2d2e85662a (diff) | |
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs
to proceed with the on-going cleanup.
* Dynamic addition and removal of cftypes to make config/stat file
handling modular for policies.
* cgroup removal update to not wait for css references to drain to fix
blkcg removal hang caused by cfq caching cfqgs.
Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the
following conflicts in block/blk-cgroup.c.
* 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks"
conflicts with blkiocg_pre_destroy() addition and blkiocg_attach()
removal. Resolved by removing @subsys from all subsys methods.
* 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in
controllers" conflicts with ->pre_destroy() and ->attach() updates
and removal of modular config. Resolved by dropping forward
declarations of the methods and applying updates to the relocated
blkio_subsys.
* 4baf6e3325 "cgroup: convert all non-memcg controllers to the new
cftype interface" builds upon the previous item. Resolved by adding
->base_cftypes to the relocated blkio_subsys.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/workqueue.c')
| -rw-r--r-- | kernel/workqueue.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index f2c5638bb5a..5abf42f63c0 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -476,13 +476,8 @@ static struct cpu_workqueue_struct *get_cwq(unsigned int cpu, struct workqueue_struct *wq) { if (!(wq->flags & WQ_UNBOUND)) { - if (likely(cpu < nr_cpu_ids)) { -#ifdef CONFIG_SMP + if (likely(cpu < nr_cpu_ids)) return per_cpu_ptr(wq->cpu_wq.pcpu, cpu); -#else - return wq->cpu_wq.single; -#endif - } } else if (likely(cpu == WORK_CPU_UNBOUND)) return wq->cpu_wq.single; return NULL; @@ -2899,13 +2894,8 @@ static int alloc_cwqs(struct workqueue_struct *wq) const size_t size = sizeof(struct cpu_workqueue_struct); const size_t align = max_t(size_t, 1 << WORK_STRUCT_FLAG_BITS, __alignof__(unsigned long long)); -#ifdef CONFIG_SMP - bool percpu = !(wq->flags & WQ_UNBOUND); -#else - bool percpu = false; -#endif - if (percpu) + if (!(wq->flags & WQ_UNBOUND)) wq->cpu_wq.pcpu = __alloc_percpu(size, align); else { void *ptr; @@ -2929,13 +2919,7 @@ static int alloc_cwqs(struct workqueue_struct *wq) static void free_cwqs(struct workqueue_struct *wq) { -#ifdef CONFIG_SMP - bool percpu = !(wq->flags & WQ_UNBOUND); -#else - bool percpu = false; -#endif - - if (percpu) + if (!(wq->flags & WQ_UNBOUND)) free_percpu(wq->cpu_wq.pcpu); else if (wq->cpu_wq.single) { /* the pointer to free is stored right after the cwq */ |