diff options
| author |   Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-06 19:24:33 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-27 09:21:45 -0800 |
| commit | 6564a25e6c185e65ca3148ed6e18f80882f6798f (patch) | |
| tree | 6059903229020ea7eea1f048b22ae3dbd44a0024 /mm | |
| parent | percpu-refcount: Replace call_rcu_sched() with call_rcu() (diff) | |
| download | linux-dev-6564a25e6c185e65ca3148ed6e18f80882f6798f.tar.xz linux-dev-6564a25e6c185e65ca3148ed6e18f80882f6798f.zip | |
slab: Replace synchronize_sched() with synchronize_rcu()
Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu(). This commit therefore makes this change.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <linux-mm@kvack.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab.c | 4 | ||||
| -rw-r--r-- | mm/slab_common.c | 6 |
2 files changed, 5 insertions, 5 deletions
diff --git a/mm/slab.c b/mm/slab.c index 2a5654bb3b3f..3abb9feb3818 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -962,10 +962,10 @@ static int setup_kmem_cache_node(struct kmem_cache *cachep, * To protect lockless access to n->shared during irq disabled context. * If n->shared isn't NULL in irq disabled context, accessing to it is * guaranteed to be valid until irq is re-enabled, because it will be - * freed after synchronize_sched(). + * freed after synchronize_rcu(). */ if (old_shared && force_change) - synchronize_sched(); + synchronize_rcu(); fail: kfree(old_shared); diff --git a/mm/slab_common.c b/mm/slab_common.c index 7eb8dc136c1c..9c11e8a937d2 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -724,7 +724,7 @@ void slab_deactivate_memcg_cache_rcu_sched(struct kmem_cache *s, css_get(&s->memcg_params.memcg->css); s->memcg_params.deact_fn = deact_fn; - call_rcu_sched(&s->memcg_params.deact_rcu_head, kmemcg_deactivate_rcufn); + call_rcu(&s->memcg_params.deact_rcu_head, kmemcg_deactivate_rcufn); } void memcg_deactivate_kmem_caches(struct mem_cgroup *memcg) @@ -839,11 +839,11 @@ static void flush_memcg_workqueue(struct kmem_cache *s) mutex_unlock(&slab_mutex); /* - * SLUB deactivates the kmem_caches through call_rcu_sched. Make + * SLUB deactivates the kmem_caches through call_rcu. Make * sure all registered rcu callbacks have been invoked. */ if (IS_ENABLED(CONFIG_SLUB)) - rcu_barrier_sched(); + rcu_barrier(); /* * SLAB and SLUB create memcg kmem_caches through workqueue and SLUB |