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author | Radim Krčmář <rkrcmar@redhat.com> | 2017-04-26 22:32:22 +0200 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-04-27 14:13:57 +0200 |
commit | 930f7fd6da77ed9476a538345513460fd304aaf5 (patch) | |
tree | 8d8c53534dc4828e76e3d8daf4aea09a3cc4abe3 /fs/qnx6/dir.c | |
parent | 75aaafb79f73516b69d5639ad30a72d72e75c8b4 (diff) | |
download | op-kernel-dev-930f7fd6da77ed9476a538345513460fd304aaf5.zip op-kernel-dev-930f7fd6da77ed9476a538345513460fd304aaf5.tar.gz |
KVM: mark requests that do not need a wakeup
Some operations must ensure that the guest is not running with stale
data, but if the guest is halted, then the update can wait until another
event happens. kvm_make_all_requests() currently doesn't wake up, so we
can mark all requests used with it.
First 8 bits were arbitrarily reserved for request numbers.
Most uses of requests have the request type as a constant, so a compiler
will optimize the '&'.
An alternative would be to have an inline function that would return
whether the request needs a wake-up or not, but I like this one better
even though it might produce worse assembly.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'fs/qnx6/dir.c')
0 files changed, 0 insertions, 0 deletions