search for: has_notifier

...ndex 34c0d970bcbc..058191d5efad 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -630,6 +630,7 @@ void vhost_dev_init(struct vhost_dev *dev, > dev->iov_limit = iov_limit; > dev->weight = weight; > dev->byte_weight = byte_weight; > + dev->has_notifier = false; > init_llist_head(&dev->work_list); > init_waitqueue_head(&dev->wait); > INIT_LIST_HEAD(&dev->read_list); > @@ -731,6 +732,7 @@ long vhost_dev_set_owner(struct vhost_dev *dev) > if (err) > goto err_mmu_notifier; > #endif > + dev->...

...t/vhost.c b/drivers/vhost/vhost.c index 34c0d970bcbc..058191d5efad 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -630,6 +630,7 @@ void vhost_dev_init(struct vhost_dev *dev, dev->iov_limit = iov_limit; dev->weight = weight; dev->byte_weight = byte_weight; + dev->has_notifier = false; init_llist_head(&dev->work_list); init_waitqueue_head(&dev->wait); INIT_LIST_HEAD(&dev->read_list); @@ -731,6 +732,7 @@ long vhost_dev_set_owner(struct vhost_dev *dev) if (err) goto err_mmu_notifier; #endif + dev->has_notifier = true; return 0; @@...

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Jason Wang (6): vhost: don't set uaddr for invalid address vhost: validate MMU notifier registration vhost: fix vhost map leak vhost: reset invalidate_count in vhost_set_vring_num_addr() vhost: mark dirty pages during map uninit vhost: don't do synchronize_rcu() in

..._meta_reset(vq); +#if VHOST_ARCH_CAN_ACCEL_UACCESS + vhost_reset_vq_maps(vq); +#endif } static int vhost_worker(void *data) @@ -471,12 +651,15 @@ void vhost_dev_init(struct vhost_dev *dev, dev->iov_limit = iov_limit; dev->weight = weight; dev->byte_weight = byte_weight; + dev->has_notifier = false; init_llist_head(&dev->work_list); init_waitqueue_head(&dev->wait); INIT_LIST_HEAD(&dev->read_list); INIT_LIST_HEAD(&dev->pending_list); spin_lock_init(&dev->iotlb_lock); - +#if VHOST_ARCH_CAN_ACCEL_UACCESS + vhost_init_maps(dev); +#endif for...

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V2: - use seqlck helper to synchronize MMU notifier with vhost worker Changes from V1: - try not use RCU to syncrhonize MMU notifier with vhost worker - set dirty pages after no readers - return -EAGAIN only when we find the range is overlapped with metadata Jason Wang (9):

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V4: - switch to use spinlock synchronize MMU notifier with accessors Changes from V3: - remove the unnecessary patch Changes from V2: - use seqlck helper to synchronize MMU notifier with vhost worker Changes from V1: - try not use RCU to syncrhonize MMU notifier with vhost

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V4: - switch to use spinlock synchronize MMU notifier with accessors Changes from V3: - remove the unnecessary patch Changes from V2: - use seqlck helper to synchronize MMU notifier with vhost worker Changes from V1: - try not use RCU to syncrhonize MMU notifier with vhost

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V3: - remove the unnecessary patch Changes from V2: - use seqlck helper to synchronize MMU notifier with vhost worker Changes from V1: - try not use RCU to syncrhonize MMU notifier with vhost worker - set dirty pages after no readers - return -EAGAIN only when we find the

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V3: - remove the unnecessary patch Changes from V2: - use seqlck helper to synchronize MMU notifier with vhost worker Changes from V1: - try not use RCU to syncrhonize MMU notifier with vhost worker - set dirty pages after no readers - return -EAGAIN only when we find the

...d, 4 insertions(+) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 03666b702498..89c9f08b5146 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -2074,6 +2074,10 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d, > d->has_notifier = false; > } > > + /* reset invalidate_count in case we are in the middle of > + * invalidate_start() and invalidate_end(). > + */ > + vq->invalidate_count = 0; I think that the code is ok but the comments are not very clear: - we are never in the middle since we just re...

...st.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 2a3154976277..2a7217c33668 100644 > +++ b/drivers/vhost/vhost.c > @@ -2073,6 +2073,10 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d, > d->has_notifier = false; > } > > + /* reset invalidate_count in case we are in the middle of > + * invalidate_start() and invalidate_end(). > + */ > + vq->invalidate_count = 0; > vhost_uninit_vq_maps(vq); > #endif >

...st.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 2a3154976277..2a7217c33668 100644 > +++ b/drivers/vhost/vhost.c > @@ -2073,6 +2073,10 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d, > d->has_notifier = false; > } > > + /* reset invalidate_count in case we are in the middle of > + * invalidate_start() and invalidate_end(). > + */ > + vq->invalidate_count = 0; > vhost_uninit_vq_maps(vq); > #endif >

...> + vhost_reset_vq_maps(vq); > +#endif > } > > static int vhost_worker(void *data) > @@ -471,12 +651,15 @@ void vhost_dev_init(struct vhost_dev *dev, > dev->iov_limit = iov_limit; > dev->weight = weight; > dev->byte_weight = byte_weight; > + dev->has_notifier = false; > init_llist_head(&dev->work_list); > init_waitqueue_head(&dev->wait); > INIT_LIST_HEAD(&dev->read_list); > INIT_LIST_HEAD(&dev->pending_list); > spin_lock_init(&dev->iotlb_lock); > - > +#if VHOST_ARCH_CAN_ACCEL_UACCESS >...

...> + vhost_reset_vq_maps(vq); > +#endif > } > > static int vhost_worker(void *data) > @@ -471,12 +651,15 @@ void vhost_dev_init(struct vhost_dev *dev, > dev->iov_limit = iov_limit; > dev->weight = weight; > dev->byte_weight = byte_weight; > + dev->has_notifier = false; > init_llist_head(&dev->work_list); > init_waitqueue_head(&dev->wait); > INIT_LIST_HEAD(&dev->read_list); > INIT_LIST_HEAD(&dev->pending_list); > spin_lock_init(&dev->iotlb_lock); > - > +#if VHOST_ARCH_CAN_ACCEL_UACCESS >...

Hi all: This series try to fix several issues introduced by meta data accelreation series. Please review. Changes from V1: - Try not use RCU to syncrhonize MMU notifier with vhost worker - set dirty pages after no readers - return -EAGAIN only when we find the range is overlapped with metadata Jason Wang (9): vhost: don't set uaddr for invalid address vhost: validate MMU notifier

...+#endif >> } >> >> static int vhost_worker(void *data) >> @@ -471,12 +651,15 @@ void vhost_dev_init(struct vhost_dev *dev, >> dev->iov_limit = iov_limit; >> dev->weight = weight; >> dev->byte_weight = byte_weight; >> + dev->has_notifier = false; >> init_llist_head(&dev->work_list); >> init_waitqueue_head(&dev->wait); >> INIT_LIST_HEAD(&dev->read_list); >> INIT_LIST_HEAD(&dev->pending_list); >> spin_lock_init(&dev->iotlb_lock); >> - >> +#if...

...; > > static int vhost_worker(void *data) > > > @@ -471,12 +651,15 @@ void vhost_dev_init(struct vhost_dev *dev, > > > dev->iov_limit = iov_limit; > > > dev->weight = weight; > > > dev->byte_weight = byte_weight; > > > + dev->has_notifier = false; > > > init_llist_head(&dev->work_list); > > > init_waitqueue_head(&dev->wait); > > > INIT_LIST_HEAD(&dev->read_list); > > > INIT_LIST_HEAD(&dev->pending_list); > > > spin_lock_init(&dev->iotlb_lo...

Hi: Per request from Michael and Jason, the metadata accelreation is reverted in this version and rework in next version. Please review. Thanks Jason Wang (2): Revert "vhost: access vq metadata through kernel virtual address" vhost: re-introducing metadata acceleration through kernel virtual address drivers/vhost/vhost.c | 202 +++++++++++++++++++++++++-----------------

Hi: Per request from Michael and Jason, the metadata accelreation is reverted in this version and rework in next version. Please review. Thanks Jason Wang (2): Revert "vhost: access vq metadata through kernel virtual address" vhost: re-introducing metadata acceleration through kernel virtual address drivers/vhost/vhost.c | 202 +++++++++++++++++++++++++-----------------

...ost/vhost.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 03666b702498..89c9f08b5146 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -2074,6 +2074,10 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d, d->has_notifier = false; } + /* reset invalidate_count in case we are in the middle of + * invalidate_start() and invalidate_end(). + */ + vq->invalidate_count = 0; vhost_uninit_vq_maps(vq); #endif -- 2.18.1