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| author | Linus Torvalds | 2016-01-19 01:44:24 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2016-01-19 01:44:24 +0100 |
| commit | a200dcb34693084e56496960d855afdeaaf9578f (patch) | |
| tree | bf65e4350460b7f98247278469f7600d1808c3fc /arch/sh/include/asm/barrier.h | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile (diff) | |
| parent | checkpatch: add virt barriers (diff) | |
| download | kernel-qcow2-linux-a200dcb34693084e56496960d855afdeaaf9578f.tar.gz kernel-qcow2-linux-a200dcb34693084e56496960d855afdeaaf9578f.tar.xz kernel-qcow2-linux-a200dcb34693084e56496960d855afdeaaf9578f.zip | |
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio barrier rework+fixes from Michael Tsirkin:
"This adds a new kind of barrier, and reworks virtio and xen to use it.
Plus some fixes here and there"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (44 commits)
checkpatch: add virt barriers
checkpatch: check for __smp outside barrier.h
checkpatch.pl: add missing memory barriers
virtio: make find_vqs() checkpatch.pl-friendly
virtio_balloon: fix race between migration and ballooning
virtio_balloon: fix race by fill and leak
s390: more efficient smp barriers
s390: use generic memory barriers
xen/events: use virt_xxx barriers
xen/io: use virt_xxx barriers
xenbus: use virt_xxx barriers
virtio_ring: use virt_store_mb
sh: move xchg_cmpxchg to a header by itself
sh: support 1 and 2 byte xchg
virtio_ring: update weak barriers to use virt_xxx
Revert "virtio_ring: Update weak barriers to use dma_wmb/rmb"
asm-generic: implement virt_xxx memory barriers
x86: define __smp_xxx
xtensa: define __smp_xxx
tile: define __smp_xxx
...
Diffstat (limited to 'arch/sh/include/asm/barrier.h')
| -rw-r--r-- | arch/sh/include/asm/barrier.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/sh/include/asm/barrier.h b/arch/sh/include/asm/barrier.h index bf91037db4e0..f887c6465a82 100644 --- a/arch/sh/include/asm/barrier.h +++ b/arch/sh/include/asm/barrier.h @@ -32,7 +32,8 @@ #define ctrl_barrier() __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop") #endif -#define smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0) +#define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0) +#define smp_store_mb(var, value) __smp_store_mb(var, value) #include <asm-generic/barrier.h> |