Re: innd mmap bug in 2.4.0-test12

From: Linus Torvalds (torvalds@transmeta.com)
Date: Sun Dec 24 2000 - 17:08:25 EST


On Sun, 24 Dec 2000, Daniel Phillips wrote:
>
> It looks like PG_dirty is now being used only for swap_cache pages, and
> not for buffer cache and page cache pages, is that correct?

No. PG_dirty is used for all memory mapped pages - be they anonymous or
not.

These days the buffer dirty bits are only used by "write()", because
write() can obviously dirty smaller areas than one page.

                Linus

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