KVM: Use mask of harvested dirty ring entries to coalesce dirty ring resets

Use "mask" instead of a dedicated boolean to track whether or not there
is at least one to-be-reset entry for the current slot+offset.  In the
body of the loop, mask is zero only on the first iteration, i.e. !mask is
equivalent to first_round.

Opportunistically combine the adjacent "if (mask)" statements into a single
if-statement.

No functional change intended.

Cc: Peter Xu <[email protected]>
Cc: Yan Zhao <[email protected]>
Cc: Maxim Levitsky <[email protected]>
Reviewed-by: Pankaj Gupta <[email protected]>
Reviewed-by: James Houghton <[email protected]>
Reviewed-by: Binbin Wu <[email protected]>
Reviewed-by: Yan Zhao <[email protected]>
Reviewed-by: Peter Xu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>

0 files changed, 0 insertions, 0 deletions