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 /net | |
| 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 'net')
| -rw-r--r-- | net/vmw_vsock/virtio_transport_common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 9c07c76c504d..ddcae46ae408 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -25,6 +25,10 @@ /* How long to wait for graceful shutdown of a connection */ #define VSOCK_CLOSE_TIMEOUT (8 * HZ) +uint virtio_transport_max_vsock_pkt_buf_size = 64 * 1024; +module_param(virtio_transport_max_vsock_pkt_buf_size, uint, 0444); +EXPORT_SYMBOL_GPL(virtio_transport_max_vsock_pkt_buf_size); + static const struct virtio_transport *virtio_transport_get_ops(void) { const struct vsock_transport *t = vsock_core_get_transport(); |