[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 0/3] virtio: detach VirtQueueElements freed by reset
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 0/3] virtio: detach VirtQueueElements freed by reset |
Date: |
Mon, 19 Sep 2016 14:28:02 +0100 |
virtio-blk and virtio-serial need to free VirtQueueElements during device
reset. Simply calling g_free(elem) is not enough because the scatter-gather
list should be unmapped and vq->inuse must be decremented.
These patches address the issue. I am not including a patch that changes
vq->inuse = 0 to assert(!vq->inuse) in virtio_reset() yet because virtio-9p,
virtio-gpu, and virtio-net have code paths that do not decrement vq->inuse.
Stefan Hajnoczi (3):
virtio: add virtio_detach_element()
virtio-blk: add missing virtio_detach_element() call
virtio-serial: add missing virtio_detach_element() call
hw/block/virtio-blk.c | 1 +
hw/char/virtio-serial-bus.c | 14 ++++++++++++++
hw/virtio/virtio.c | 27 +++++++++++++++++++++++++--
include/hw/virtio/virtio.h | 2 ++
4 files changed, 42 insertions(+), 2 deletions(-)
--
2.7.4
- [Qemu-devel] [PATCH 0/3] virtio: detach VirtQueueElements freed by reset,
Stefan Hajnoczi <=
[Qemu-devel] [PATCH 2/3] virtio-blk: add missing virtio_detach_element() call, Stefan Hajnoczi, 2016/09/19