Re: Since no one else has stepped forward: 'ZeroD' patch

Mike Jagdis (mike@toaster.roan.co.uk)
Fri, 10 Jan 1997 09:13:17 GMT

>yes. The current patch keeps the size of this pool quite limited. If there
>are no major objections, i'd like to integrate the functionality right
>into the global free page pool. (thus no allocation would happen, we
>would operate on a sysctl+dynamics controlled fraction of the free page
>pool.)

I've done something like this in my page_alloc rewrite (which I'm
trying to get back into after the Christmas, ah, excesses). Incidentally
there are several places in the kernel that grab a page just in case
and then free it if it isn't needed. If that's a zeroed page you can
put it straight on the zeroed list and avoid a second clear. Maybe
your patch does this - I haven't looked yet.

Mike

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