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 |
|---|---|---|
| partitions | ||
| Kconfig | -rw-r--r-- | 6.1 KB |
| Kconfig.iosched | -rw-r--r-- | 2.7 KB |
| Makefile | -rw-r--r-- | 1.4 KB |
| badblocks.c | -rw-r--r-- | 14.5 KB |
| bfq-cgroup.c | -rw-r--r-- | 33.0 KB |
| bfq-iosched.c | -rw-r--r-- | 163.4 KB |
| bfq-iosched.h | -rw-r--r-- | 31.4 KB |
| bfq-wf2q.c | -rw-r--r-- | 51.0 KB |
| bio-integrity.c | -rw-r--r-- | 13.9 KB |
| bio.c | -rw-r--r-- | 51.1 KB |
| blk-cgroup.c | -rw-r--r-- | 37.6 KB |
| blk-core.c | -rw-r--r-- | 95.4 KB |
| blk-exec.c | -rw-r--r-- | 2.9 KB |
| blk-flush.c | -rw-r--r-- | 16.6 KB |
| blk-integrity.c | -rw-r--r-- | 12.1 KB |
| blk-ioc.c | -rw-r--r-- | 10.9 KB |
| blk-lib.c | -rw-r--r-- | 9.8 KB |
| blk-map.c | -rw-r--r-- | 5.9 KB |
| blk-merge.c | -rw-r--r-- | 19.7 KB |
| blk-mq-cpumap.c | -rw-r--r-- | 1.7 KB |
| blk-mq-debugfs.c | -rw-r--r-- | 23.4 KB |
| blk-mq-debugfs.h | -rw-r--r-- | 2.1 KB |
| blk-mq-pci.c | -rw-r--r-- | 1.6 KB |
| blk-mq-rdma.c | -rw-r--r-- | 1.7 KB |
| blk-mq-sched.c | -rw-r--r-- | 14.5 KB |
| blk-mq-sched.h | -rw-r--r-- | 2.8 KB |
| blk-mq-sysfs.c | -rw-r--r-- | 8.2 KB |
| blk-mq-tag.c | -rw-r--r-- | 11.4 KB |
| blk-mq-tag.h | -rw-r--r-- | 2.3 KB |
| blk-mq-virtio.c | -rw-r--r-- | 1.7 KB |
| blk-mq.c | -rw-r--r-- | 70.0 KB |
| blk-mq.h | -rw-r--r-- | 4.0 KB |
| blk-settings.c | -rw-r--r-- | 28.7 KB |
| blk-softirq.c | -rw-r--r-- | 4.3 KB |
| blk-stat.c | -rw-r--r-- | 5.5 KB |
| blk-stat.h | -rw-r--r-- | 5.5 KB |
| blk-sysfs.c | -rw-r--r-- | 23.4 KB |
| blk-tag.c | -rw-r--r-- | 10.0 KB |
| blk-throttle.c | -rw-r--r-- | 67.6 KB |
| blk-timeout.c | -rw-r--r-- | 5.9 KB |
| blk-wbt.c | -rw-r--r-- | 17.6 KB |
| blk-wbt.h | -rw-r--r-- | 4.0 KB |
| blk-zoned.c | -rw-r--r-- | 7.6 KB |
| blk.h | -rw-r--r-- | 10.9 KB |
| bounce.c | -rw-r--r-- | 6.4 KB |
| bsg-lib.c | -rw-r--r-- | 7.1 KB |
| bsg.c | -rw-r--r-- | 22.9 KB |
| cfq-iosched.c | -rw-r--r-- | 127.1 KB |
| cmdline-parser.c | -rw-r--r-- | 4.9 KB |
| compat_ioctl.c | -rw-r--r-- | 10.8 KB |
| deadline-iosched.c | -rw-r--r-- | 11.2 KB |
| elevator.c | -rw-r--r-- | 26.8 KB |
| genhd.c | -rw-r--r-- | 47.2 KB |
| ioctl.c | -rw-r--r-- | 15.0 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| kyber-iosched.c | -rw-r--r-- | 21.0 KB |
| mq-deadline.c | -rw-r--r-- | 16.8 KB |
| noop-iosched.c | -rw-r--r-- | 2.6 KB |
| opal_proto.h | -rw-r--r-- | 9.3 KB |
| partition-generic.c | -rw-r--r-- | 16.7 KB |
| scsi_ioctl.c | -rw-r--r-- | 20.0 KB |
| sed-opal.c | -rw-r--r-- | 57.7 KB |
| t10-pi.c | -rw-r--r-- | 4.9 KB |
Computing file changes ...
