Re: [PATCH 0/3 v3] dcache: make it more scalable on large system

[Dave Chinner]

On Wed, May 29, 2013 at 10:37:00PM +0200, Andi Kleen wrote:
> > As Dave said before, is the last path component sufficient?  Or how
> > about an inode number?
> 
> Neither works, the profiler needs to find the file and read it.
> 
> inode searching would be incredible expensive, unless the file system
> provided a "open-by-inode" primitive

That's effectively what fs/fhandle.c gives you.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx
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