Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt | virtualization | Ratatoskr

[PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 01/34] Documentation/memory-barriers.txt: document __smb_mb() · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 02/34] asm-generic: guard smp_store_release/load_acquire · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 03/34] ia64: rename nop->iosapic_nop · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 05/34] powerpc: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 07/34] sparc: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 09/34] arm: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 10/34] arm64: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 11/34] metag: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 12/34] mips: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 13/34] x86/um: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 14/34] x86: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 16/34] powerpc: define __smp_XXX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 17/34] arm64: define __smp_XXX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 18/34] arm: define __smp_XXX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 22/34] mips: define __smp_XXX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 29/34] Revert "virtio_ring: Update weak barriers to use dma_wmb/rmb" · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 30/34] virtio_ring: update weak barriers to use __smp_XXX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 31/34] xenbus: use __smp_XXX barriers · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 32/34] xen/io: use __smp_XXX barriers · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 33/34] virtio: use __smp_load_acquire/__smp_store_release · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 34/34] virtio_ring: use __smp_store_mb · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 08/34] asm-generic: smp_store_mb should use smp_mb · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
Re: [PATCH 08/34] asm-generic: smp_store_mb should use smp_mb · Arnd Bergmann <arnd@arndb.de> · 2015-12-30
[PATCH 06/34] s390: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 04/34] ia64: reuse asm-generic/barrier.h · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
RE: [PATCH 04/34] ia64: reuse asm-generic/barrier.h · "Luck, Tony" <tony.luck@intel.com> · 2015-12-30
Re: [PATCH 00/34] arch: barrier cleanup + __smp_XXX barriers for virt · Arnd Bergmann <arnd@arndb.de> · 2015-12-30
Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 15/34] asm-generic: add __smp_xxx wrappers · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt · David Miller <davem@davemloft.net> · 2015-12-30
Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 19/34] blackfin: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 20/34] ia64: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
RE: [PATCH 20/34] ia64: define __smp_XXX · "Luck, Tony" <tony.luck@intel.com> · 2015-12-30
[PATCH 23/34] s390: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 24/34] sh: define __smp_xxx, fix smp_store_mb for !SMP · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 28/34] x86: define __smp_xxX · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 27/34] xtensa: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 26/34] tile: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 25/34] sparc: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30
[PATCH 21/34] metag: define __smp_xxx · "Michael S. Tsirkin" <mst@redhat.com> · 2015-12-30

Re: [PATCH 00/34] arch: barrier cleanup + __smp_xxx barriers for virt

From: David Miller <davem@davemloft.net>
Date: 2015-12-30 20:46:51
Also in: linux-arch, lkml

From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 30 Dec 2015 14:58:19 +0200

-. Patch 1 documents the __smp APIs, and explains why they are
   useful for virt

If virt is doing things like interacting with descriptors that are
shared with a (potentially SMP) host, why don't we just annotate those
specific cases?

The other memory barriers in the kernel do not matter for SMP'ness
when build UP.