Messages in this thread | | | Date | Mon, 20 May 2002 03:15:38 +0200 (CEST) | From | Roman Zippel <> | Subject | Re: Linux-2.5.16 |
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Hi,
On Sun, 19 May 2002, Linus Torvalds wrote:
> That reminds me - we should increment the rss for page directories now on > the allocation path, because we will decrement rss for them when we free > them (and because it's the right thing to do anyway, I guess - better > resource tracking). > > The other alternative is to make separate versions of "tlb_remove_page()": > one that decrements RSS, one that doesn't (and the latter would be used > for page directories). > > Finally, I haven't really heard anything back from the "strange" VM > architectures (ie sparc v8 and PPC) other than Davem's buy-in that the > basic approach should work ok for them.
There is another problem even on rather "normal" systems, a pgd/pmd directory doesn't have to be of PAGE_SIZE size, e.g. on m68k it's 512 bytes.
bye, Roman
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