diff options
| author |   Halil Pasic <pasic@linux.ibm.com> | 2019-05-23 16:50:07 +0200 |
|---|---|---|
| committer |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2019-06-15 12:25:28 +0200 |
| commit | 01b3fb1ea00d5b2af77f41da69dd9dc859c12748 (patch) | |
| tree | fb9a5e812db44bebf59630baef61c56c8f0c469e /drivers/s390 | |
| parent | s390/airq: use DMA memory for adapter interrupts (diff) | |
| download | linux-dev-01b3fb1ea00d5b2af77f41da69dd9dc859c12748.tar.xz linux-dev-01b3fb1ea00d5b2af77f41da69dd9dc859c12748.zip | |
virtio/s390: use cacheline aligned airq bit vectors
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 <pasic@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
Tested-by: Michael Mueller <mimu@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/virtio/virtio_ccw.c | 3 |
1 files changed, 2 insertions, 1 deletions
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; |