Re: dentry bloat.

From: Andrew Morton
Date: Sat May 08 2004 - 23:38:53 EST

Linus Torvalds <torvalds@xxxxxxxx> wrote:
> > The calculation of DNAME_INLINE_LEN assumes that slab padded the dentry out
> > to the next cacheline.
> No it doesn't. It's just:
> #define DNAME_INLINE_LEN (sizeof(struct dentry)-offsetof(struct dentry,d_iname))
> which is always right.

erk. OK. Things are (much) worse than I thought. The 24 byte limit means
that 20% of my names will be externally allocated, but that's no worse than
what we had before.

We should make this change to 2.4.x.
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