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| author |   Hollis Blanchard <hollisb@us.ibm.com> | 2008-11-05 09:36:22 -0600 |
|---|---|---|
| committer |   Avi Kivity <avi@redhat.com> | 2008-12-31 16:52:23 +0200 |
| commit | 9ab80843c01ac25139e635d018467e528729a317 (patch) | |
| tree | 725d1926e9fc26e8dfe6f51e2f15b2c91c673022 | |
| parent | KVM: ppc: optimize kvm stat handling (diff) | |
| download | linux-dev-9ab80843c01ac25139e635d018467e528729a317.tar.xz linux-dev-9ab80843c01ac25139e635d018467e528729a317.zip | |
KVM: ppc: optimize find first bit
Since we use a unsigned long here anyway we can use the optimized __ffs.
Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/powerpc/kvm/booke.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index b285e3d32466..0f064719162c 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -222,7 +222,7 @@ void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu) unsigned int exception; unsigned int priority; - priority = find_first_bit(pending, BITS_PER_BYTE * sizeof(*pending)); + priority = __ffs(*pending); while (priority <= BOOKE_MAX_INTERRUPT) { exception = priority_exception[priority]; if (kvmppc_can_deliver_interrupt(vcpu, exception)) { |