similar to: [PATCH] tools/virtio: use virt_xxx barriers

include/xen/interface/io/ring.h uses full memory barriers to communicate with the other side. For guests compiled with CONFIG_SMP, smp_wmb and smp_mb would be sufficient, so mb() and wmb() here are only needed if a non-SMP guest runs on an SMP host. Switch to virt_xxx barriers which serve this exact purpose. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---

drivers/xen/xenbus/xenbus_comms.c uses full memory barriers to communicate with the other side. For guests compiled with CONFIG_SMP, smp_wmb and smp_mb would be sufficient, so mb() and wmb() here are only needed if a non-SMP guest runs on an SMP host. Switch to virt_xxx barriers which serve this exact purpose. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---

drivers/xen/events/events_fifo.c uses rmb() to communicate with the other side. For guests compiled with CONFIG_SMP, smp_rmb would be sufficient, so rmb() here is only needed if a non-SMP guest runs on an SMP host. Switch to the virt_rmb barrier which serves this exact purpose. Pull in asm/barrier.h here to make sure the file is self-contained. Suggested-by: David Vrabel <david.vrabel at

virtio ring uses smp_wmb on SMP and wmb on !SMP, the reason for the later being that it might be talking to another kernel on the same SMP machine. This is exactly what __smp_XXX barriers do, so switch to these instead of homegrown ifdef hacks. Cc: Peter Zijlstra <peterz at infradead.org> Cc: Alexander Duyck <alexander.duyck at gmail.com> Signed-off-by: Michael S. Tsirkin <mst at

On Mon, Apr 10, 2023 at 08:00:33AM -0400, Michael S. Tsirkin wrote: > On Mon, Apr 10, 2023 at 08:28:45PM +0900, Shunsuke Mie wrote: > > Fix the build dependency for virtio_test. The virtio_ring that is used from > > the test requires container_of_const(). Change to use container_of.h kernel > > header directly and adapt related codes. > > > > Signed-off-by:

This is a note to let you know that I have just added a patch titled block: virtio_blk: don't hold spin lock during world switch to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11.5. If you, or

This is a note to let you know that I have just added a patch titled block: virtio_blk: don't hold spin lock during world switch to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11.5. If you, or

Hi Kamal, On Jan 2, 2008, at 05:57, Kamal R. Prasad wrote: > (im new to LLVM , so pl excuse if this is a naive q). Welcome! > Can someone provide info on what runtime optimizations are done in > LLVM? You can use any of LLVM's optimizing transformations in a JIT context. There's a list here: http://llvm.org/docs/Passes.html Unlike Java, you're in the driver's

I would like to request you Samba gurus , what is the significance of teh file " username-map " which currently is in /usr/local/samba/lib. I have tried the following entries: jhall = hall_j kamal = kamal root = root but i dont know what it does , now the question : Can i manage users with this file , i.e I just add entries to this file on the fly and the users will have access to the

On 23 February 2015 at 01:29, Kamal Sharma <kgs1.rice at gmail.com> wrote: > Hi Dibyendu, > > It would be very helpful if you could post the original source code or > snippet. > That way, one can investigate deeper to understand the problem. > > Regards, > Kamal Sharma > Hi Kamal, Sure. I guess I ought to create a test that one can look in isolation. I am

--- On Thu, 1/3/08, Gordon Henriksen <gordonhenriksen at mac.com> wrote: > > On Jan 2, 2008, at 05:57, Kamal R. Prasad wrote: > > > (im new to LLVM , so pl excuse if this is a naive q). > > Welcome! > thanks > > Can someone provide info on what runtime optimizations > are done in > > LLVM? > > You can use any of LLVM's optimizing

Hi Linus, Just making sure nothing's wrong with this pull request. If there's an issue, pls let me know! Thanks! On Wed, Jan 13, 2016 at 06:28:55PM +0200, Michael S. Tsirkin wrote: > The following changes since commit afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc: > > Linux 4.4 (2016-01-10 15:01:32 -0800) > > are available in the git repository at: > >

3.13.11.5 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ming Lei <ming.lei at canonical.com> commit e8edca6f7f92234202d6dd163c118ef495244d7c upstream. Firstly, it isn't necessary to hold lock of vblk->vq_lock when notifying hypervisor about queued I/O. Secondly, virtqueue_notify() will cause world switch and it may take long

3.13.11.5 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ming Lei <ming.lei at canonical.com> commit e8edca6f7f92234202d6dd163c118ef495244d7c upstream. Firstly, it isn't necessary to hold lock of vblk->vq_lock when notifying hypervisor about queued I/O. Secondly, virtqueue_notify() will cause world switch and it may take long

Dear All, Please help me in this regards, Howto Backup Domain Controller (BDC) or Secondary domain controller for the Primary Domain Controller (PDC) in Centos 5.6 Openldap+samba 3.3 Please give the step by step. Regards kamal

Hi, I have a problem in renaming R object and saving them within a loop. For ex: for (i in 1:length(all_files)) { uncov_GR <- "variable created in loop" filename <- paste0(sample_name[[i]],"_uncov", ".Rdata")) save(uncov_GR,file=filename) } Within the above short code (out of a long program), I want to

Hello Rawland, Thank you for your reply. We manage other zones other than the ad zone. These zones are stored in our AD (ldap). To do this, we have set up the named-sdb service which listens on 127.0.0.2. Samba AD forwards all DNS requests that do not match the AD domain zone to named-sdb. The problem is that these log errors only occur at 00:00:00 every day. Best Regards,

Hello, (im new to LLVM , so pl excuse if this is a naive q). Can someone provide info on what runtime optimizations are done in LLVM? do you have something along lines of JVM's hotspot feature? How efficient is the optimized code vis-a-vis native code? thanks -kamal ____________________________________________________________________________________ Never miss a thing.

> > --- Original message --- > Subject: [Samba] Fwd: how to "Disable Samba Roaming profile" > From: Muqtadir Kamal <smkamal2001 at gmail.com> > To: <samba at lists.samba.org> > Date: Thursday, 10/06/2010 10:31 PM > > ---------- Forwarded message ---------- > From: Muqtadir Kamal <smkamal2001 at gmail.com> > Date: Fri, Jun 11, 2010 at 10:49

The following changes since commit afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc: Linux 4.4 (2016-01-10 15:01:32 -0800) 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 43e361f23c49dbddf74f56ddf6cdd85c5dbff6da: checkpatch: add virt barriers (2016-01-12 20:47:08 +0200)