From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: [PULL] vhost: infrastructure changes for 3.16 Date: Wed, 11 Jun 2014 16:44:47 +0300 Message-ID: <20140611134447.GA8208@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Linus Torvalds Cc: sfr@canb.auug.org.au, linux-scsi@vger.kernel.org, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, nab@daterainc.com List-Id: virtualization@lists.linuxfoundation.org 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 ---------------------------------------------------------------- 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(-)