Displaying 20 results from an estimated 71 matches for "vhost_dev_unlock_vqs".
2018 Jul 22
2
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[i]->mutex, i);
> -}
> -
> -static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_unlock(&d->vqs[i]->mutex);
> -}
> -
> static int vhost_new_umem_range(struct vhost_umem *umem,
> u64 start, u64 size, u64 end,
> u64 userspace_addr, int perm)...
2018 Jul 22
2
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[i]->mutex, i);
> -}
> -
> -static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_unlock(&d->vqs[i]->mutex);
> -}
> -
> static int vhost_new_umem_range(struct vhost_umem *umem,
> u64 start, u64 size, u64 end,
> u64 userspace_addr, int perm)...
2018 Nov 29
2
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[i]->mutex, i);
> -}
> -
> -static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_unlock(&d->vqs[i]->mutex);
> -}
> -
> static int vhost_new_umem_range(struct vhost_umem *umem,
> u64 start, u64 size, u64 end,
> u64 userspace_addr, int perm)...
2018 Nov 29
2
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[i]->mutex, i);
> -}
> -
> -static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_unlock(&d->vqs[i]->mutex);
> -}
> -
> static int vhost_new_umem_range(struct vhost_umem *umem,
> u64 start, u64 size, u64 end,
> u64 userspace_addr, int perm)...
2018 Jun 30
0
[PATCH net-next v3 1/4] net: vhost: lock the vqs one by one
...t_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhost_dev_unlock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_unlock(&d->vqs[i]->mutex);
-}
-
static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
@@ -950,7 +939,10 @@ static void vhost_iotlb_...
2018 Jul 21
0
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...t_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhost_dev_unlock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_unlock(&d->vqs[i]->mutex);
-}
-
static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
@@ -953,7 +942,10 @@ static void vhost_iotlb_...
2018 Sep 25
0
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...t_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhost_dev_unlock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_unlock(&d->vqs[i]->mutex);
-}
-
static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
@@ -954,7 +943,10 @@ static void vhost_iotlb_...
2018 Dec 12
0
[PATCH net V2 3/4] Revert "net: vhost: lock the vqs one by one"
...t_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
+static void vhost_dev_lock_vqs(struct vhost_dev *d)
+{
+ int i = 0;
+ for (i = 0; i < d->nvqs; ++i)
+ mutex_lock_nested(&d->vqs[i]->mutex, i);
+}
+
+static void vhost_dev_unlock_vqs(struct vhost_dev *d)
+{
+ int i = 0;
+ for (i = 0; i < d->nvqs; ++i)
+ mutex_unlock(&d->vqs[i]->mutex);
+}
+
static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
@@ -976,6 +987,7 @@ static int vhost_process_...
2018 Jul 25
0
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
..._ADDR_USED)
> >
> > -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> > -{
> > - int i = 0;
> > - for (i = 0; i < d->nvqs; ++i)
> > - mutex_lock_nested(&d->vqs[i]->mutex, i);
> > -}
> > -
> > -static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> > -{
> > - int i = 0;
> > - for (i = 0; i < d->nvqs; ++i)
> > - mutex_unlock(&d->vqs[i]->mutex);
> > -}
> > -
> > static int vhost_new_umem_range(struct vhost_umem *umem,
> >...
2018 Dec 12
1
[PATCH net V2 3/4] Revert "net: vhost: lock the vqs one by one"
...get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> +static void vhost_dev_lock_vqs(struct vhost_dev *d)
> +{
> + int i = 0;
> + for (i = 0; i < d->nvqs; ++i)
> + mutex_lock_nested(&d->vqs[i]->mutex, i);
> +}
> +
> +static void vhost_dev_unlock_vqs(struct vhost_dev *d)
> +{
> + int i = 0;
> + for (i = 0; i < d->nvqs; ++i)
> + mutex_unlock(&d->vqs[i]->mutex);
> +}
> +
> static int vhost_new_umem_range(struct vhost_umem *umem,
> u64 start, u64 size, u64 end,
> u64 userspace_addr, int perm)...
2018 Sep 25
6
[REBASE PATCH net-next v9 0/4] net: vhost: improve performance when enable busyloop
From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
This patches improve the guest receive performance.
On the handle_tx side, we poll the sock receive queue
at the same time. handle_rx do that in the same way.
For more performance report, see patch 4
Tonghao Zhang (4):
net: vhost: lock the vqs one by one
net: vhost: replace magic number of lock annotation
net: vhost: factor out busy
2018 May 22
3
[PATCH net] vhost: synchronize IOTLB message with dev cleanup
...@@ -981,6 +981,7 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev,
{
int ret = 0;
+ mutex_lock(&dev->mutex);
vhost_dev_lock_vqs(dev);
switch (msg->type) {
case VHOST_IOTLB_UPDATE:
@@ -1016,6 +1017,8 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev,
}
vhost_dev_unlock_vqs(dev);
+ mutex_unlock(&dev->mutex);
+
return ret;
}
ssize_t vhost_chr_write_iter(struct vhost_dev *dev,
--
2.7.4
2018 Jul 21
7
[PATCH net-next v6 0/4] net: vhost: improve performance when enable busyloop
From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
This patches improve the guest receive performance.
On the handle_tx side, we poll the sock receive queue
at the same time. handle_rx do that in the same way.
For more performance report, see patch 4.
v5->v6:
rebase the codes.
Tonghao Zhang (4):
net: vhost: lock the vqs one by one
net: vhost: replace magic number of lock annotation
2018 Jan 23
5
[PATCH net 1/2] vhost: use mutex_lock_nested() in vhost_dev_lock_vqs()
...4
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -904,7 +904,7 @@ static void vhost_dev_lock_vqs(struct vhost_dev *d)
{
int i = 0;
for (i = 0; i < d->nvqs; ++i)
- mutex_lock(&d->vqs[i]->mutex);
+ mutex_lock_nested(&d->vqs[i]->mutex, i);
}
static void vhost_dev_unlock_vqs(struct vhost_dev *d)
--
2.7.4
2018 Jan 23
5
[PATCH net 1/2] vhost: use mutex_lock_nested() in vhost_dev_lock_vqs()
...4
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -904,7 +904,7 @@ static void vhost_dev_lock_vqs(struct vhost_dev *d)
{
int i = 0;
for (i = 0; i < d->nvqs; ++i)
- mutex_lock(&d->vqs[i]->mutex);
+ mutex_lock_nested(&d->vqs[i]->mutex, i);
}
static void vhost_dev_unlock_vqs(struct vhost_dev *d)
--
2.7.4
2018 Dec 13
5
[PATCH net V3 0/3] Fix various issue of vhost
Hi:
This series tries to fix various issues of vhost:
- Patch 1 adds a missing write barrier between used idx updating and
logging.
- Patch 2-3 brings back the protection of device IOTLB through vq
mutex, this fixes possible use after free in device IOTLB entries.
Please consider them for -stable.
Thanks
Changes from V2:
- drop dirty page fix and make it for net-next
Changes from V1:
-
2018 Jun 30
9
[PATCH net-next v3 0/4] net: vhost: improve performance when enable busyloop
From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
This patches improve the guest receive and transmit performance.
On the handle_tx side, we poll the sock receive queue at the same time.
handle_rx do that in the same way.
This patches are splited from previous big patch:
http://patchwork.ozlabs.org/patch/934673/
For more performance report, see patch 4.
Tonghao Zhang (4):
net: vhost:
2018 Dec 12
10
[PATCH net V2 0/4] Fix various issue of vhost
Hi:
This series tries to fix various issues of vhost:
- Patch 1 adds a missing write barrier between used idx updating and
logging.
- Patch 2-3 brings back the protection of device IOTLB through vq
mutex, this fixes possible use after free in device IOTLB entries.
- Patch 4-7 fixes the diry page logging when device IOTLB is
enabled. We should done through GPA instead of GIOVA, this was
2018 Dec 12
10
[PATCH net V2 0/4] Fix various issue of vhost
Hi:
This series tries to fix various issues of vhost:
- Patch 1 adds a missing write barrier between used idx updating and
logging.
- Patch 2-3 brings back the protection of device IOTLB through vq
mutex, this fixes possible use after free in device IOTLB entries.
- Patch 4-7 fixes the diry page logging when device IOTLB is
enabled. We should done through GPA instead of GIOVA, this was
2018 Jun 26
3
[PATCH net-next v2] net: vhost: improve performance when enable busyloop
...t_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhost_dev_unlock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_unlock(&d->vqs[i]->mutex);
-}
static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
@@ -950,7 +940,11 @@ static void vhost_iotlb_notify_vq(struct vhost_dev *d,
i...