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virtio: fixes on top of 4.4-rc4

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This includes some fixes and cleanups in virtio and vhost code. Most notably,
 shadowing the index fixes the excessive cacheline bouncing observed on AMD
 platforms.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio fixes from Michael Tsirkin:
 "This includes some fixes and cleanups in virtio and vhost code.

  Most notably, shadowing the index fixes the excessive cacheline
  bouncing observed on AMD platforms"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_ring: shadow available ring flags & index
  virtio: Do not drop __GFP_HIGH in alloc_indirect
  vhost: replace % with & on data path
  tools/virtio: fix byteswap logic
  tools/virtio: move list macro stubs
  virtio: fix memory leak of virtio ida cache layers
  vhost: relax log address alignment
  virtio-net: Stop doing DMA from the stack
This commit is contained in:
Linus Torvalds 2015-12-07 10:50:07 -08:00
commit 62ea1ec5e1
7 changed files with 78 additions and 45 deletions
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