user/sven/linux.git/include/uapi/linux/virtio_blk.h, branch v3.18.119Linux Kernel
https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v3.18.1192014-07-01T16:51:01Zinclude/uapi/linux/virtio_blk.h: introduce feature of VIRTIO_BLK_F_MQ2014-07-01T16:51:01ZMing Leiming.lei@canonical.com2014-06-26T09:41:47Zurn:sha1:cb553215d5d277d4838d7d6b7722e964bcf5ca1f
Current virtio-blk spec only supports one virtual queue for transfering
data between VM and host, and inside VM all kinds of operations on
the virtual queue needs to hold one lock, so cause below problems:
- bad scalability
- bad throughput
This patch requests to introduce feature of VIRTIO_BLK_F_MQ
so that more than one virtual queues can be used to virtio-blk
device, then above problems can be solved or eased.
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
UAPI: (Scripted) Disintegrate include/linux2012-10-13T09:46:48ZDavid Howellsdhowells@redhat.com2012-10-13T09:46:48Zurn:sha1:607ca46e97a1b6594b29647d98a32d545c24bdff
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>