From mboxrd@z Thu Jan 1 00:00:00 1970 From: Halil Pasic Subject: [PATCH v5 5/8] virtio/s390: use cacheline aligned airq bit vectors Date: Wed, 12 Jun 2019 13:12:33 +0200 Message-ID: <20190612111236.99538-6-pasic@linux.ibm.com> References: <20190612111236.99538-1-pasic@linux.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190612111236.99538-1-pasic@linux.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: kvm@vger.kernel.org, linux-s390@vger.kernel.org, Cornelia Huck , Sebastian Ott , Heiko Carstens Cc: "Jason J. Herne" , Christoph Hellwig , Thomas Huth , Claudio Imbrenda , Janosch Frank , Vasily Gorbik , "Michael S. Tsirkin" , Farhan Ali , Eric Farman , virtualization@lists.linux-foundation.org, Halil Pasic , Christian Borntraeger , Michael Mueller , Viktor Mihajlovski List-Id: virtualization@lists.linuxfoundation.org The flag AIRQ_IV_CACHELINE was recently added to airq_iv_create(). Let us use it! We actually wanted the vector to span a cacheline all along. Signed-off-by: Halil Pasic Reviewed-by: Christian Borntraeger Reviewed-by: Cornelia Huck --- drivers/s390/virtio/virtio_ccw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index f995798bb025..1da7430f94c8 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -216,7 +216,8 @@ static struct airq_info *new_airq_info(void) if (!info) return NULL; rwlock_init(&info->lock); - info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR); + info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR + | AIRQ_IV_CACHELINE); if (!info->aiv) { kfree(info); return NULL; -- 2.17.1