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-- | 1.1 KB |
| Makefile | -rw-r--r-- | 166 bytes |
| dma-buf.c | -rw-r--r-- | 34.5 KB |
| dma-fence-array.c | -rw-r--r-- | 5.1 KB |
| dma-fence.c | -rw-r--r-- | 15.7 KB |
| reservation.c | -rw-r--r-- | 14.2 KB |
| seqno-fence.c | -rw-r--r-- | 2.2 KB |
| sw_sync.c | -rw-r--r-- | 9.7 KB |
| sync_debug.c | -rw-r--r-- | 5.7 KB |
| sync_debug.h | -rw-r--r-- | 2.1 KB |
| sync_file.c | -rw-r--r-- | 11.2 KB |
| sync_trace.h | -rw-r--r-- | 735 bytes |
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