qemu-e2k/hw/block/dataplane
Greg Kurz 9cf4fd872d virtio: Clarify MR transaction optimization
The device model batching its ioeventfds in a single MR transaction is
an optimization. Clarify this in virtio-scsi, virtio-blk and generic
virtio code. Also clarify that the transaction must commit before
closing ioeventfds so that no one is tempted to merge the loops
in the start functions error path and in the stop functions.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <162125799728.1394228.339855768563326832.stgit@bahia.lan>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-02 11:13:39 -04:00
..
meson.build meson: convert hw/block 2020-08-21 06:30:32 -04:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
virtio-blk.c virtio: Clarify MR transaction optimization 2021-07-02 11:13:39 -04:00
virtio-blk.h hw/block: Fix the return type 2017-12-19 09:25:28 +00:00
xen-block.c block: Separate blk_is_writable() and blk_supports_write_perm() 2021-01-27 20:45:20 +01:00
xen-block.h xen-block: support feature-large-sector-size 2019-06-24 10:42:29 +01:00