lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 22 Dec 2022 14:04:23 +0800 From: Jason Wang <jasowang@...hat.com> To: mst@...hat.com, jasowang@...hat.com Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, maxime.coquelin@...hat.com, alvaro.karsz@...id-run.com, eperezma@...hat.com Subject: [RFC PATCH 0/4] virtio-net: don't busy poll for cvq command Hi all: The code used to busy poll for cvq command which turns out to have several side effects: 1) infinite poll for buggy devices 2) bad interaction with scheduler So this series tries to use sleep + timeout instead of busy polling. Please review. Thanks Jason Wang (4): virtio-net: convert rx mode setting to use workqueue virtio_ring: switch to use BAD_RING() virtio_ring: introduce a per virtqueue waitqueue virtio-net: sleep instead of busy waiting for cvq command drivers/net/virtio_net.c | 79 +++++++++++++++++++++++++++++++----- drivers/virtio/virtio_ring.c | 33 ++++++++++++++- include/linux/virtio.h | 4 ++ 3 files changed, 105 insertions(+), 11 deletions(-) -- 2.25.1
Powered by blists - more mailing lists