Re: dentry bloat.

[Andrew Morton]

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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