From 6da3f33770e08348691d90455ef6149e15551854 Mon Sep 17 00:00:00 2001 From: "Uladzislau Rezki (Sony)" Date: Wed, 15 Dec 2021 12:18:42 +0100 Subject: [PATCH] misc: vmw_vmci: Switch to kvfree_rcu() API Instead of invoking a synchronize_rcu() to free a pointer after a grace period we can directly make use of new API that does the same but in more efficient way. Signed-off-by: Uladzislau Rezki (Sony) Link: https://lore.kernel.org/r/20211215111845.2514-6-urezki@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/misc/vmw_vmci/vmci_context.c | 6 ++---- drivers/misc/vmw_vmci/vmci_event.c | 3 +-- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/misc/vmw_vmci/vmci_context.c b/drivers/misc/vmw_vmci/vmci_context.c index c0b5e339d5a1..6cf3e21c7604 100644 --- a/drivers/misc/vmw_vmci/vmci_context.c +++ b/drivers/misc/vmw_vmci/vmci_context.c @@ -687,10 +687,8 @@ int vmci_ctx_remove_notification(u32 context_id, u32 remote_cid) } spin_unlock(&context->lock); - if (found) { - synchronize_rcu(); - kfree(notifier); - } + if (found) + kvfree_rcu(notifier); vmci_ctx_put(context); diff --git a/drivers/misc/vmw_vmci/vmci_event.c b/drivers/misc/vmw_vmci/vmci_event.c index e3436abf39f4..2100297c94ad 100644 --- a/drivers/misc/vmw_vmci/vmci_event.c +++ b/drivers/misc/vmw_vmci/vmci_event.c @@ -209,8 +209,7 @@ int vmci_event_unsubscribe(u32 sub_id) if (!s) return VMCI_ERROR_NOT_FOUND; - synchronize_rcu(); - kfree(s); + kvfree_rcu(s); return VMCI_SUCCESS; }