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SubjectRe: ramdisk corruption problems - was: RE: pivot_root and initrdkern el panic woes

On Mon, 31 Dec 2001, Andrea Arcangeli wrote:
>
> actually bh_new is needed also to serialize with the buffercache, a new
> bh mapped in pagecache must be dropped from the buffercache before we
> can start using it (unmap_underlying_metadata).

You're right, although it's something of an optimization (ie we could as
well just depend on the "mapped" bit and watch it change).

Linus

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