diff options
| author | Ram Muthiah <rammuthiah@google.com> | 2021-01-26 20:27:32 -0800 |
|---|---|---|
| committer | Ram Muthiah <rammuthiah@google.com> | 2021-03-25 02:03:06 +0000 |
| commit | 93fb0db791be7e8df3d91d046a4259e341782972 (patch) | |
| tree | 9848de48a2b81dd478538eccaeb661fbf69fbaa2 /include/linux | |
| parent | ff91fba478b0b7e2b81b13de25e9a226f1daf296 (diff) | |
ANDROID: Make vsock virtio packet buff size configurable
When the android virtual device stays up for long periods of time, the
SLAB sustains everincreasing fragmentation. Contributing to this
fragmentation are the virtio packet buffer allocations which are a
drain on 64Kb compound pages. Eventually these can't be allocated due to
fragmentation.
To enable successful allocations for this packet buffer, the packet
buffer's size needs to be reduced.
To enable a reduction without impacting other partners, this var is
being exposed as a command line param.
Bug: 149494272
Test: atest ManagedProfileLifecycleStressTest#testCreateStartDelete on
local cuttlefish device
Signed-off-by: Ram Muthiah <rammuthiah@google.com>
Change-Id: Ia4f9180025b64d61d9e2b882daa84460b8f08fd2
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/virtio_vsock.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h index 584f9a647ad4..6b6c1138f963 100644 --- a/include/linux/virtio_vsock.h +++ b/include/linux/virtio_vsock.h @@ -11,7 +11,8 @@ #define VIRTIO_VSOCK_DEFAULT_MAX_BUF_SIZE (1024 * 256) #define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE (1024 * 4) #define VIRTIO_VSOCK_MAX_BUF_SIZE 0xFFFFFFFFUL -#define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE (1024 * 64) +#define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE virtio_transport_max_vsock_pkt_buf_size +extern uint virtio_transport_max_vsock_pkt_buf_size; enum { VSOCK_VQ_RX = 0, /* for host to guest data */ |