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SubjectRe: Linux/Pro -- clusters
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> Single additional alloc -> twice as many allocs, two slabs, more cachelines
> dirty. This was hashed out on fsdevel, though apparently not to everyone's
> satisfaction.

Al Viro's NFS in generic_ip saved me something like 130K of memory.

> > Using generic_ip in its current form has the advantage of being able to
> > create a nicely-aligned kmem cache for your private inode data.
>
> I don't see why that's hard with the combined struct.

Providing you end up with fs->alloc_inode() and the fs allocates a suitable
sized inode + private I see no problem.
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