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| author | David S. Miller <davem@davemloft.net> | 2013-07-09 12:45:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-09 12:45:43 -0700 |
| commit | e1d6fbc3dedbb463fc79b48ddb05ab6b20fd088a (patch) | |
| tree | 6d63721222da5d652d2e4e65991a15007a83a520 /mm/percpu-vm.c | |
| parent | 01276ed2424eb78c95461545410923d5da154d31 (diff) | |
| parent | cbdadbbf0c790f79350a8f36029208944c5487d0 (diff) | |
virtio_net: fix race in RX VQ processing
Michael S. Tsirkin says:
====================
Jason Wang reported a race in RX VQ processing:
virtqueue_enable_cb is called outside napi lock,
violating virtio serialization rules.
The race has been there from day 1, but it got especially nasty in 3.0
when commit a5c262c5fd83ece01bd649fb08416c501d4c59d7
"virtio_ring: support event idx feature"
added more dependency on vq state.
Please review, and consider for 3.11 and stable.
Changes from v1:
- Added Jason's Tested-by tag
- minor coding style fix
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/percpu-vm.c')
0 files changed, 0 insertions, 0 deletions