diff options
| author | Radim Krčmář <[email protected]> | 2015-04-02 20:44:23 +0200 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2015-04-08 10:46:55 +0200 |
| commit | 80f7fdb1c7f0f9266421f823964fd1962681f6ce (patch) | |
| tree | 5046430395b6097984374f24d59f6616b34ae1ea /drivers/mtd/lpddr/lpddr_cmds.c | |
| parent | 3180a7fcbc0ec7ed7cc85ed5015bdd7a8c2176e8 (diff) | |
x86: vdso: fix pvclock races with task migration
If we were migrated right after __getcpu, but before reading the
migration_count, we wouldn't notice that we read TSC of a different
VCPU, nor that KVM's bug made pvti invalid, as only migration_count
on source VCPU is increased.
Change vdso instead of updating migration_count on destination.
Cc: [email protected]
Signed-off-by: Radim Krčmář <[email protected]>
Fixes: 0a4e6be9ca17 ("x86: kvm: Revert "remove sched notifier for cross-cpu migrations"")
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'drivers/mtd/lpddr/lpddr_cmds.c')
0 files changed, 0 insertions, 0 deletions