On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
> On 6/22/23 10:53, Qi Zheng wrote:
> > @@ -1067,33 +1068,27 @@ static unsigned long shrink_slab(gfp_t gfp_mask,
> > int nid,
> > if (!mem_cgroup_disabled() && !mem_cgroup_is_root(memcg))
> > return shrink_slab_memcg(
On Thu, Jun 22, 2023 at 04:53:08PM +0800, Qi Zheng wrote:
> Introduce some helpers for dynamically allocating shrinker instance,
> and their uses are as follows:
>
> 1. shrinker_alloc_and_init()
>
> Used to allocate and initialize a shrinker instance, the priv_data
> parameter is used to pass the
On Fri, Jun 23, 2023 at 06:55:24AM +0900, Damien Le Moal wrote:
> On 6/22/23 23:32, Suwan Kim wrote:
> > On Tue, Jun 20, 2023 at 5:39 PM Damien Le Moal wrote:
> >>
> >> The introduction of completion batching with commit 07b679f70d73
> >> ("virtio-blk: support completion batching for the IRQ path"
vduse_vdpa_set_vq_affinity callback can be called
with NULL value as cpu_mask when deleting the vduse
device.
This patch resets virtqueue's IRQ affinity mask value
to set all CPUs instead of dereferencing NULL cpu_mask.
[ 4760.952149] BUG: kernel NULL pointer dereference, address: 000
On Fri, Jun 02, 2023 at 05:21:56PM +0800, Xuan Zhuo wrote:
> ## About DMA APIs
>
> Now, virtio may can not work with DMA APIs when virtio features do not have
> VIRTIO_F_ACCESS_PLATFORM.
>
> 1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs
> just
>work with the "r
On Fri, Jun 02, 2023 at 05:22:01PM +0800, Xuan Zhuo wrote:
> Under the premapped mode, the driver needs to unmap the DMA address
> after receiving the buffer. The virtio core records the DMA address,
> so the driver needs a way to get the dma info from the virtio core.
>
> A straightforward approa
On Fri, Jun 02, 2023 at 05:22:03PM +0800, Xuan Zhuo wrote:
> This patch introduces three helpers for premapped mode.
>
> * virtqueue_get_buf_premapped
> * virtqueue_detach_unused_buf_premapped
>
> The above helpers work like the non-premapped funcs. But a cursor is
> passed.
>
> virtqueue_detach
On Tue, Jun 20, 2023 at 10:54:19PM +, Edward Liaw wrote:
> On Fri, Jun 09, 2023 at 03:27:24AM -0400, Michael S. Tsirkin wrote:
> > This reverts commit 07b679f70d73483930e8d3c293942416d9cd5c13.
> This commit was also breaking kernel tests on a virtual Android device
> (cuttlefish). We were seei
On Sat, Jun 10, 2023 at 12:58:34AM +, Bobby Eshleman wrote:
Because the dgram sendmsg() path for AF_VSOCK acquires the socket lock
it does not scale when many senders share a socket.
Prior to this patch the socket lock is used to protect both reads and
writes to the local_addr, remote_addr,
On Sat, Jun 10, 2023 at 12:58:33AM +, Bobby Eshleman wrote:
This commit adds support for datagrams over virtio/vsock.
Message boundaries are preserved on a per-skb and per-vq entry basis.
Messages are copied in whole from the user to an SKB, which in turn is
added to the scatterlist for the
On Sun, Jun 11, 2023 at 11:49:02PM +0300, Arseniy Krasnov wrote:
Hello Bobby!
On 10.06.2023 03:58, Bobby Eshleman wrote:
This commit adds support for datagrams over virtio/vsock.
Message boundaries are preserved on a per-skb and per-vq entry basis.
I'm a little bit confused about the followi
On Sat, Jun 10, 2023 at 12:58:32AM +, Bobby Eshleman wrote:
This commit adds a feature bit for virtio vsock to support datagrams.
Signed-off-by: Jiang Wang
Signed-off-by: Bobby Eshleman
---
include/uapi/linux/virtio_vsock.h | 1 +
1 file changed, 1 insertion(+)
LGTM, but I'll give the R-b
On Sat, Jun 10, 2023 at 12:58:31AM +, Bobby Eshleman wrote:
This commit makes the bind table management functions in vsock usable
for different bind tables. For use by datagrams in a future patch.
Signed-off-by: Bobby Eshleman
---
net/vmw_vsock/af_vsock.c | 33 ++
On Sat, Jun 10, 2023 at 12:58:30AM +, Bobby Eshleman wrote:
This patch adds support for multi-transport datagrams.
This includes:
- Per-packet lookup of transports when using sendto(sockaddr_vm)
- Selecting H2G or G2H transport using VMADDR_FLAG_TO_HOST and CID in
sockaddr_vm
To preserve b
On 6/22/23 10:53, Qi Zheng wrote:
> The shrinker_rwsem is a global read-write lock in
> shrinkers subsystem, which protects most operations
> such as slab shrink, registration and unregistration
> of shrinkers, etc. This can easily cause problems in
> the following cases.
>
> 1) When the memory pr
On Sat, Jun 10, 2023 at 12:58:29AM +, Bobby Eshleman wrote:
Introduce new reusable function vsock_connectible_lookup_transport()
that performs the transport lookup logic.
No functional change intended.
Signed-off-by: Bobby Eshleman
---
net/vmw_vsock/af_vsock.c | 25 ++--
On 6/22/23 10:53, Qi Zheng wrote:
> The mm/vmscan.c file is too large, so separate the shrinker-related
> code from it into a separate file. No functional changes.
>
> Signed-off-by: Qi Zheng
Maybe do this move as patch 01 so the further changes are done in the new
file already?
___
On Sun, Jun 11, 2023 at 11:43:15PM +0300, Arseniy Krasnov wrote:
Hello Bobby! Thanks for this patchset! Small comment below:
On 10.06.2023 03:58, Bobby Eshleman wrote:
This commit drops the transport->dgram_dequeue callback and makes
vsock_dgram_recvmsg() generic. It also adds additional transp
On 6/22/23 10:53, Qi Zheng wrote:
> To prepare for the dynamic allocation of shrinker instances
> embedded in other structures, add a private_data field to
> struct shrinker, so that we can use shrinker::private_data
> to record and get the original embedded structure.
>
> Signed-off-by: Qi Zheng
On Thu, Jun 22, 2023 at 07:37:08AM -0400, Michael S. Tsirkin wrote:
On Mon, Jun 05, 2023 at 01:06:44PM +0200, Stefano Garzarella wrote:
vhost-vdpa IOCTLs (eg. VHOST_GET_VRING_BASE, VHOST_SET_VRING_BASE)
don't support packed virtqueue well yet, so let's filter the
VIRTIO_F_RING_PACKED feature for
On Fri, Jun 02, 2023 at 05:22:06PM +0800, Xuan Zhuo wrote:
> Introduce the module param "experiment_premapped" to enable the function
> that the virtio-net do dma mapping.
>
> If that is true, the vq of virtio-net is under the premapped mode.
> It just handle the sg with dma_address. And the drive
On Fri, Jun 09, 2023 at 09:18:14PM +0800, Xianting Tian wrote:
> Cpu stall issue may happen if device is configured with multi queues
> and large queue depth, so fix it.
I applied this after tweaking commit log to address Greg's comments.
In the future I expect you guys to do such tweaks yourself
On Mon, Jun 05, 2023 at 01:06:44PM +0200, Stefano Garzarella wrote:
> vhost-vdpa IOCTLs (eg. VHOST_GET_VRING_BASE, VHOST_SET_VRING_BASE)
> don't support packed virtqueue well yet, so let's filter the
> VIRTIO_F_RING_PACKED feature for now in vhost_vdpa_get_features().
>
> This way, even if the dev
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