* Wei Yang (richardw.y...@linux.intel.com) wrote:
> If one equals end, it means we have gone through the whole bitmap.
>
> Use a more restrict check to skip a unnecessary condition.
>
> Signed-off-by: Wei Yang <richardw.y...@linux.intel.com>
Yes, I don't think that'll break, since I think the find_next_zero_bit
will also return end, and then discard_length would be 0; still I think
it's a correct fix.
Reviewed-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
> ---
> migration/ram.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/migration/ram.c b/migration/ram.c
> index 908517fc2b..b78169e811 100644
> --- a/migration/ram.c
> +++ b/migration/ram.c
> @@ -2777,7 +2777,7 @@ static int postcopy_send_discard_bm_ram(MigrationState
> *ms,
> for (current = 0; current < end; ) {
> unsigned long one = find_next_bit(unsentmap, end, current);
>
> - if (one <= end) {
> + if (one < end) {
> unsigned long zero = find_next_zero_bit(unsentmap, end, one + 1);
> unsigned long discard_length;
>
> --
> 2.19.1
>
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
