Re: [PATCH 01/02] swap: discard while swapping only if SWAP_FLAG_DISCARD_PAGES

[KOSAKI Motohiro]

> +                       /*
> +                        * By flagging sys_swapon, a sysadmin can tell us to
> +                        * either do sinle-time area discards only, or to just
> +                        * perform discards for released swap page-clusters.
> +                        * Now it's time to adjust the p->flags accordingly.
> +                        */
> +                       if (swap_flags & SWAP_FLAG_DISCARD_ONCE)
> +                               p->flags &= ~SWP_PAGE_DISCARD;
> +                       else if (swap_flags & SWAP_FLAG_DISCARD_PAGES)
> +                               p->flags &= ~SWP_AREA_DISCARD;

When using old swapon(8), this code turn off both flags, right?
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