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authorPaul E. McKenney <paulmck@linux.ibm.com>2018-11-07 04:24:33 +0100
committerPaul E. McKenney <paulmck@linux.ibm.com>2018-11-27 18:21:45 +0100
commit6564a25e6c185e65ca3148ed6e18f80882f6798f (patch)
tree6059903229020ea7eea1f048b22ae3dbd44a0024 /mm/slab.c
parentpercpu-refcount: Replace call_rcu_sched() with call_rcu() (diff)
downloadlinux-6564a25e6c185e65ca3148ed6e18f80882f6798f.tar.xz
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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/slab.c')
-rw-r--r--mm/slab.c4
1 files changed, 2 insertions, 2 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);