From 265a0ad8731dc04fccb76cd1abf5a85a9359e62e Mon Sep 17 00:00:00 2001 From: Zhu Lingshan Date: Fri, 31 Jul 2020 14:55:28 +0800 Subject: vhost: introduce vhost_vring_call This commit introduces struct vhost_vring_call which replaced raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue. Besides eventfd_ctx, it contains a spin lock and an irq_bypass_producer in its structure. Signed-off-by: Zhu Lingshan Suggested-by: Jason Wang Link: https://lore.kernel.org/r/20200731065533.4144-2-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin --- drivers/vhost/vhost.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/vhost/vhost.h') diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index c8e96a095d3b..38eb1aa3b68d 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -13,6 +13,7 @@ #include #include #include +#include struct vhost_work; typedef void (*vhost_work_fn_t)(struct vhost_work *work); @@ -60,6 +61,12 @@ enum vhost_uaddr_type { VHOST_NUM_ADDRS = 3, }; +struct vhost_vring_call { + struct eventfd_ctx *ctx; + struct irq_bypass_producer producer; + spinlock_t ctx_lock; +}; + /* The virtqueue structure describes a queue attached to a device. */ struct vhost_virtqueue { struct vhost_dev *dev; @@ -72,7 +79,7 @@ struct vhost_virtqueue { vring_used_t __user *used; const struct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS]; struct file *kick; - struct eventfd_ctx *call_ctx; + struct vhost_vring_call call_ctx; struct eventfd_ctx *error_ctx; struct eventfd_ctx *log_ctx; -- cgit v1.2.3