> > since i don't have the history that you and others here might have, can
> > you tell me why the inode cache is implemented so that it uses raw pages
> > and never shrinks? is it simply older than the slab cache
> > implementation?
>
> The original inode cache is ancient. The slab only arrived in 2.1. The
> inode.c was pretty much rewritten in 2.1 too, but the underlying data
> structures predate slab by a long, long way.
I was under the impression that the slab allocator was used for inodes around
2.1.4x, but Linus switched back for reasons which seemed good when I heard
them, but which I no longer remember :)
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