virtio_net: Remove command data from control_buf

Browse source

Allocate memory for the data when it's used. Ideally the struct could
be on the stack, but we can't DMA stack memory. With this change only
the header and status memory are shared between commands, which will
allow using a tighter lock than RTNL.

Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Heng Qi <hengqi@linux.alibaba.com>
Tested-by: Heng Qi <hengqi@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Daniel Jurgens 2024-05-03 23:24:41 +03:00 • committed by Paolo Abeni

parent fce29030c5

commit ff7c7d9f52

1 changed files with 85 additions and 39 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

124

drivers/net/virtio_net.c

View file