Re: [RFC][patch 0/2] mm: remove PageReserved

Daniel Phillips
2005-08-10T13:34:42Z

On Wednesday 10 August 2005 23:13, David Howells wrote:
> Andrew Morton <akpm@osdl.org> wrote:
> > > ...kill PG_checked please :) Or at least keep it from spreading.
> >
> > It already spread - ext3 is using it and I think reiser4. I thought I
> > had a patch to rename it to PG_misc1 or somesuch, but no. It's mandate
> > becomes "filesystem-specific page flag".
>
> You're carrying a patch to stick a flag called PG_fs_misc, but that has the
> same value as PG_checked. An extra page flag beyond PG_uptodate, PG_lock
> and PG_writeback is required to make readpage through the cache
> non-synchronous.

David,

Interesting, have you got a pointer to a full explanation? Is this about aio?

Regards,

Daniel