similar to: [PATCH net v3] vsock: Fix a lockdep warning in __vsock_release()

On Mon, Sep 30, 2019 at 06:43:50PM +0000, Dexuan Cui wrote: > Lockdep is unhappy if two locks from the same class are held. > > Fix the below warning for hyperv and virtio sockets (vmci socket code > doesn't have the issue) by using lock_sock_nested() when __vsock_release() > is called recursively: > > ============================================ > WARNING: possible

Hi Dexuan, On Thu, Sep 26, 2019 at 01:11:27AM +0000, Dexuan Cui wrote: > Lockdep is unhappy if two locks from the same class are held. > > Fix the below warning for hyperv and virtio sockets (vmci socket code > doesn't have the issue) by using lock_sock_nested() when __vsock_release() > is called recursively: > > ============================================ >

On Fri, Sep 27, 2019 at 05:37:20AM +0000, Dexuan Cui wrote: > > From: linux-hyperv-owner at vger.kernel.org > > <linux-hyperv-owner at vger.kernel.org> On Behalf Of Stefano Garzarella > > Sent: Thursday, September 26, 2019 12:48 AM > > > > Hi Dexuan, > > > > On Thu, Sep 26, 2019 at 01:11:27AM +0000, Dexuan Cui wrote: > > > ... > >

On Fri, Sep 27, 2019 at 05:37:20AM +0000, Dexuan Cui wrote: > > From: linux-hyperv-owner at vger.kernel.org > > <linux-hyperv-owner at vger.kernel.org> On Behalf Of Stefano Garzarella > > Sent: Thursday, September 26, 2019 12:48 AM > > > > Hi Dexuan, > > > > On Thu, Sep 26, 2019 at 01:11:27AM +0000, Dexuan Cui wrote: > > > ... > >

vsock_insert_unbound() was called only when 'sock' parameter of __vsock_create() was not null. This only happened when __vsock_create() was called by vsock_create(). In order to simplify the multi-transports support, this patch moves vsock_insert_unbound() at the end of vsock_create(). Reviewed-by: Dexuan Cui <decui at microsoft.com> Reviewed-by: Stefan Hajnoczi <stefanha at

> From: Stefano Garzarella [mailto:sgarzare at redhat.com] > Sent: Wednesday, October 23, 2019 11:56 AM > Subject: [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the > core > > virtio_transport and vmci_transport handle the buffer_size sockopts in a > very similar way. > > In order to support multiple transports, this patch moves this handling in the >

On Fri, Oct 04, 2019 at 12:04:46AM +0000, Dexuan Cui wrote: > > From: Stefano Garzarella <sgarzare at redhat.com> > > Sent: Friday, September 27, 2019 4:27 AM > > ... > > Patch 9 changes the hvs_remote_addr_init(). setting the > > VMADDR_CID_HOST as remote CID instead of VMADDR_CID_ANY to make > > the choice of transport to be used work properly. >

virtio_transport and vmci_transport handle the buffer_size sockopts in a very similar way. In order to support multiple transports, this patch moves this handling in the core to allow the user to change the options also if the socket is not yet assigned to any transport. This patch also adds the '.notify_buffer_size' callback in the 'struct virtio_transport' in order to inform

On Thu, Aug 01, 2019 at 04:16:37PM +0000, Dexuan Cui wrote: > > From: Stefano Garzarella <sgarzare at redhat.com> > > Sent: Thursday, August 1, 2019 8:26 AM > > > > The vsock_diag.ko module already has a test suite but the core AF_VSOCK > > functionality has no tests. This patch series adds several test cases that > > exercise AF_VSOCK SOCK_STREAM socket

On Thu, Feb 9, 2017 at 12:45 PM, KY Srinivasan <kys at microsoft.com> wrote: > > >> -----Original Message----- >> From: Thomas Gleixner [mailto:tglx at linutronix.de] >> Sent: Thursday, February 9, 2017 9:08 AM >> To: Vitaly Kuznetsov <vkuznets at redhat.com> >> Cc: x86 at kernel.org; Andy Lutomirski <luto at amacapital.net>; Ingo Molnar

On Thu, Feb 9, 2017 at 12:45 PM, KY Srinivasan <kys at microsoft.com> wrote: > > >> -----Original Message----- >> From: Thomas Gleixner [mailto:tglx at linutronix.de] >> Sent: Thursday, February 9, 2017 9:08 AM >> To: Vitaly Kuznetsov <vkuznets at redhat.com> >> Cc: x86 at kernel.org; Andy Lutomirski <luto at amacapital.net>; Ingo Molnar

Since sequence count algorithm is done by hypervisor, better to not reuse seqcount. Still concerned that the code is racy. -----Original Message----- From: Thomas Gleixner [mailto:tglx at linutronix.de] Sent: Friday, February 10, 2017 4:28 AM To: Vitaly Kuznetsov <vkuznets at redhat.com> Cc: Stephen Hemminger <sthemmin at microsoft.com>; x86 at kernel.org; Andy Lutomirski <luto at

Since sequence count algorithm is done by hypervisor, better to not reuse seqcount. Still concerned that the code is racy. -----Original Message----- From: Thomas Gleixner [mailto:tglx at linutronix.de] Sent: Friday, February 10, 2017 4:28 AM To: Vitaly Kuznetsov <vkuznets at redhat.com> Cc: Stephen Hemminger <sthemmin at microsoft.com>; x86 at kernel.org; Andy Lutomirski <luto at

> -----Original Message----- > From: Thomas Gleixner [mailto:tglx at linutronix.de] > Sent: Thursday, February 9, 2017 9:08 AM > To: Vitaly Kuznetsov <vkuznets at redhat.com> > Cc: x86 at kernel.org; Andy Lutomirski <luto at amacapital.net>; Ingo Molnar > <mingo at redhat.com>; H. Peter Anvin <hpa at zytor.com>; KY Srinivasan > <kys at

Why not use existing seqlock's? -----Original Message----- From: Thomas Gleixner [mailto:tglx at linutronix.de] Sent: Thursday, February 9, 2017 9:08 AM To: Vitaly Kuznetsov <vkuznets at redhat.com> Cc: x86 at kernel.org; Andy Lutomirski <luto at amacapital.net>; Ingo Molnar <mingo at redhat.com>; H. Peter Anvin <hpa at zytor.com>; KY Srinivasan <kys at

On Sun, Feb 12, 2017 at 11:49 PM, Dexuan Cui <decui at microsoft.com> wrote: >> From: Thomas Gleixner [mailto:tglx at linutronix.de] >> Sent: Saturday, February 11, 2017 02:02 >> ... >> That's important if the stuff happens cross CPU. If the update happens on >> the same CPU then this is a different story and as there are VMexits >> involved they

Hi, all I want to reduce the checkpoint size of a VM by memory exclusion. I try to find out all the free pages by reference count at VMM-level, As they declared that: /* Page is on a free list: ((count_info & PGC_count_mask) == 0). */ , in struct page_info which is defined in /xen/include/asm-x86/mm.h, but unfortunately, all the pages in a idle VM accords with this condition.

Any advice about the patch cr8-acceleration-3.patch? Hi Keir, could you give some comments? Thanks! -- Dexuan -----Original Message----- From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of Cui, Dexuan Sent: 2006年10月25日 11:12 To: Keir.Fraser@cl.cam.ac.uk Cc: xen-devel@lists.xensource.com Subject: [Xen-devel] [Patch][RESEND] Add hardware CR8

On Wed, Oct 23, 2019 at 11:55:40AM +0200, Stefano Garzarella wrote: > This series adds the multi-transports support to vsock, following > this proposal: https://www.spinics.net/lists/netdev/msg575792.html > > With the multi-transports support, we can use VSOCK with nested VMs > (using also different hypervisors) loading both guest->host and > host->guest transports at the

The actual code looks fine, but the style police will not like you. { should be at start of line on functions. And #else should be at start of line, But maybe this was just more of exchange mangling the mail. -----Original Message----- From: Vitaly Kuznetsov [mailto:vkuznets at redhat.com] Sent: Thursday, February 9, 2017 6:11 AM To: x86 at kernel.org; Andy Lutomirski <luto at