On Wed, Mar 07, 2018 at 02:42:01PM +0000, Stefan Hajnoczi wrote: > v3: > * Rebase on qemu.git/master after AIO_WAIT_WHILE() was merged [Fam] > v2: > * Tackle the .ioeventfd_stop() vs vq handler race by removing the ioeventfd > from a BH in the IOThread [Fam]
Acked-by: Michael S. Tsirkin <m...@redhat.com> who is merging this? > There are several race conditions in virtio-blk/virtio-scsi dataplane code. > This patch series addresses them, see the commit description for details on > the > individual cases. > > Stefan Hajnoczi (4): > block: add aio_wait_bh_oneshot() > virtio-blk: fix race between .ioeventfd_stop() and vq handler > virtio-scsi: fix race between .ioeventfd_stop() and vq handler > vl: introduce vm_shutdown() > > include/block/aio-wait.h | 13 +++++++++++++ > include/sysemu/iothread.h | 1 - > include/sysemu/sysemu.h | 1 + > cpus.c | 16 +++++++++++++--- > hw/block/dataplane/virtio-blk.c | 24 +++++++++++++++++------- > hw/scsi/virtio-scsi-dataplane.c | 9 +++++---- > iothread.c | 31 ------------------------------- > util/aio-wait.c | 31 +++++++++++++++++++++++++++++++ > vl.c | 13 +++---------- > 9 files changed, 83 insertions(+), 56 deletions(-) > > -- > 2.14.3
