https://github.com/torvalds/linux
Revision 1650b4ebc99da4c137bfbfc531be4a2405f951dd authored by Ignacio Alvarado on 04 November 2016, 19:15:55 UTC, committed by Radim Krčmář on 19 November 2016, 18:04:04 UTC
Function user_notifier_unregister should be called only once for each
registered user notifier.
Function kvm_arch_hardware_disable can be executed from an IPI context
which could cause a race condition with a VCPU returning to user mode
and attempting to unregister the notifier.
Signed-off-by: Ignacio Alvarado <ikalvarado@google.com>
Cc: stable@vger.kernel.org
Fixes: 18863bdd60f8 ("KVM: x86 shared msr infrastructure")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
1 parent 8b95344
Tip revision: 1650b4ebc99da4c137bfbfc531be4a2405f951dd authored by Ignacio Alvarado on 04 November 2016, 19:15:55 UTC
KVM: Disable irq while unregistering user notifier
KVM: Disable irq while unregistering user notifier
Tip revision: 1650b4e
| File | Mode | Size |
|---|---|---|
| partitions | ||
| Kconfig | -rw-r--r-- | 3.8 KB |
| Kconfig.iosched | -rw-r--r-- | 1.6 KB |
| Makefile | -rw-r--r-- | 949 bytes |
| badblocks.c | -rw-r--r-- | 14.5 KB |
| bio-integrity.c | -rw-r--r-- | 14.2 KB |
| bio.c | -rw-r--r-- | 48.5 KB |
| blk-cgroup.c | -rw-r--r-- | 35.8 KB |
| blk-core.c | -rw-r--r-- | 93.3 KB |
| blk-exec.c | -rw-r--r-- | 3.2 KB |
| blk-flush.c | -rw-r--r-- | 16.3 KB |
| blk-integrity.c | -rw-r--r-- | 12.3 KB |
| blk-ioc.c | -rw-r--r-- | 10.2 KB |
| blk-lib.c | -rw-r--r-- | 7.3 KB |
| blk-map.c | -rw-r--r-- | 5.8 KB |
| blk-merge.c | -rw-r--r-- | 19.6 KB |
| blk-mq-cpumap.c | -rw-r--r-- | 2.3 KB |
| blk-mq-pci.c | -rw-r--r-- | 1.5 KB |
| blk-mq-sysfs.c | -rw-r--r-- | 11.7 KB |
| blk-mq-tag.c | -rw-r--r-- | 11.1 KB |
| blk-mq-tag.h | -rw-r--r-- | 2.2 KB |
| blk-mq.c | -rw-r--r-- | 56.5 KB |
| blk-mq.h | -rw-r--r-- | 2.7 KB |
| blk-settings.c | -rw-r--r-- | 27.0 KB |
| blk-softirq.c | -rw-r--r-- | 4.3 KB |
| blk-sysfs.c | -rw-r--r-- | 18.5 KB |
| blk-tag.c | -rw-r--r-- | 10.0 KB |
| blk-throttle.c | -rw-r--r-- | 42.7 KB |
| blk-timeout.c | -rw-r--r-- | 5.9 KB |
| blk.h | -rw-r--r-- | 9.0 KB |
| bounce.c | -rw-r--r-- | 5.8 KB |
| bsg-lib.c | -rw-r--r-- | 6.0 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-- | 20.8 KB |
| deadline-iosched.c | -rw-r--r-- | 11.3 KB |
| elevator.c | -rw-r--r-- | 23.8 KB |
| genhd.c | -rw-r--r-- | 45.0 KB |
| ioctl.c | -rw-r--r-- | 14.8 KB |
| ioprio.c | -rw-r--r-- | 5.1 KB |
| noop-iosched.c | -rw-r--r-- | 2.6 KB |
| partition-generic.c | -rw-r--r-- | 14.7 KB |
| scsi_ioctl.c | -rw-r--r-- | 19.4 KB |
| t10-pi.c | -rw-r--r-- | 4.8 KB |
Computing file changes ...
