Messages in this thread | | | Date | Tue, 19 Feb 2002 11:34:15 -0300 (BRT) | From | Rik van Riel <> | Subject | [PATCH *] new struct page shrinkage |
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Hi Linus,
The patch has been changed like you wanted, with page->zone shoved into page->flags. I've also pulled the thing up to your latest changes from linux.bkbits.net so you should be able to just pull it into your tree from:
bk://linuxvm.bkbits.net/linux-2.5-struct_page
You can also view the patch on:
http://surriel.com/patches/2.5/2.5.5-p2-struct_page5
I'm not retransmitting it to lkml as very little has changed. Please apply the patch to your 2.5 tree.
thank you,
Rik
----> begin standard blurb of explanation <----
I've forward-ported a small part of the -rmap patch to 2.5, the shrinkage of the struct page. Most of this code is from William Irwin and Christoph Hellwig.
The executive summary: o page->wait is removed, instead we use a hash table of wait queues per zone ... collisions are ok because of wake-all semantics o page->virtual is only used on highmem machines and sparc64, other machines calculate the address instead o page->zone is moved into page->flags
Linus, please pull from the bk tree:
bk://linuxvm.bkbits.net/linux-2.5-struct_page
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