Revision a0cff57bb2a41cb9cbf13d3203097b4156d8c0ae authored by Davidlohr Bueso on 13 September 2017, 20:08:21 UTC, committed by Paolo Bonzini on 15 September 2017, 14:57:12 UTC
During code inspection, the following potential race was seen: CPU0 CPU1 kvm_async_pf_task_wait apf_task_wake_one [L] swait_active(&n->wq) [S] prepare_to_swait(&n.wq) [L] if (!hlist_unhahed(&n.link)) schedule() [S] hlist_del_init(&n->link); Properly serialize swait_active() checks such that a wakeup is not missed. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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File | Mode | Size |
---|---|---|
Kconfig | -rw-r--r-- | 2.4 KB |
Makefile | -rw-r--r-- | 343 bytes |
virtio.c | -rw-r--r-- | 10.6 KB |
virtio_balloon.c | -rw-r--r-- | 19.2 KB |
virtio_input.c | -rw-r--r-- | 10.1 KB |
virtio_mmio.c | -rw-r--r-- | 18.6 KB |
virtio_pci_common.c | -rw-r--r-- | 15.2 KB |
virtio_pci_common.h | -rw-r--r-- | 4.7 KB |
virtio_pci_legacy.c | -rw-r--r-- | 7.6 KB |
virtio_pci_modern.c | -rw-r--r-- | 20.6 KB |
virtio_ring.c | -rw-r--r-- | 34.5 KB |
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