Re: booked-page-flag.patch

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>>>>> Eric Sandeen (ES) writes:

 ES> Andrew Morton wrote:
 >> Sorry, we're seriously, seriously, seriously short on flags in the page
 >> struct and this patch is going to need one heck of a good case for it to be
 >> acceptable.

 ES> This was for the delayed allocation patchset, right; and by managing
 ES> this at the page level that means we can't do this for block size <
 ES> page size, I think...

I still think that having PG_booked and special code to handle
case when blocksize==pagesize is worthwhile -- we save 56 bytes
on 32bit and 104 bytes on 64bit for every written page.

thanks, Alex
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