Re: [PATCH] address_space_operations unification

From: Alexander Viro (aviro@redhat.com)
Date: Sun May 07 2000 - 13:20:53 EST


On Sun, 7 May 2000, Manfred Spraul wrote:

> Linus Torvalds wrote:
> >
> >
> > Let's say that you really start having meta-data in an address_space.
> >
> What about symlinks? AFAIKS, they are already in the page cache.
>
> And what about using a pointer to the address_space structure itself as
> a parameter to the address_space_operations? That structure always
> exists, and I don't see the advantage of maintaining
> address_space->file->d_entry->d_inode->i_mapping.

That's completely useless - you can get it from the page itself. Excuse me,
but have you read the thread? No? The whole problem (beaten nearly to death)
is that all filesystems share the pagecache between different openers _and_
some need to know the opener.

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