Linux-kernel mailing list archive 1998-50,: Re: PG_clean for shared mapping smart syncing

# Re: PG_clean for shared mapping smart syncing

Andrea Arcangeli (andrea@e-mind.com)
Sat, 19 Dec 1998 17:27:40 +0100 (CET)

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On Sat, 19 Dec 1998, Stephen C. Tweedie wrote:

>Hi,
>
>On Sat, 19 Dec 1998 17:04:26 +0100 (CET), Andrea Arcangeli
><andrea@e-mind.com> said:
>
>Just a couple of comments: I can't see any mechanism in this patch for
>clearing other process's pte dirty bits when we sync a shared page (I

The only reason to add a bitflag in the page->flags field is to avoid
us to play with the pte. Now the pte is used only to set the page readonly
to allow us to remove the clean flag at the first page fault.

Andrea Arcangeli

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