[PULL] vhost: infrastructure changes for 3.16

Michael S. Tsirkin
2014-06-11T13:44:42Z

Hi Linus,
Please pull the following.
Please note this needs to be merged before merging
target-pending PULL which Nicholas will be sending
out shortly.

Thanks!

The following changes since commit 1860e379875dfe7271c649058aeddffe5afd9d0d:

Linux 3.15 (2014-06-08 11:19:54 -0700)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus

for you to fetch changes up to 47283bef7ed356629467d1fac61687756e48f254:

vhost: move memory pointer to VQs (2014-06-09 16:21:07 +0300)

----------------------------------------------------------------
vhost: infrastructure changes for 3.16

This reworks vhost core dropping unnecessary RCU uses in favor of VQ mutexes
which are used on fast path anyway. This fixes worst-case latency for users
which change the memory mappings a lot.
Memory allocation for vhost-net now supports fallback on vmalloc (same as for
vhost-scsi) this makes it possible to create the device on systems where memory
is very fragmented, with slightly lower performance.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

----------------------------------------------------------------
Michael S. Tsirkin (4):
vhost-net: extend device allocation to vmalloc
vhost: replace rcu with mutex
vhost: move acked_features to VQs
vhost: move memory pointer to VQs

drivers/vhost/vhost.h | 19 ++++------
drivers/vhost/net.c | 35 ++++++++++++-------
drivers/vhost/scsi.c | 26 ++++++++------
drivers/vhost/test.c | 11 +++---
drivers/vhost/vhost.c | 97 ++++++++++++++++++++++++++-------------------------
5 files changed, 101 insertions(+), 87 deletions(-)