Re: [rfc] scale dcache locking

From: Al Viro
Date: Wed Apr 01 2009 - 10:23:31 EST


On Mon, Mar 30, 2009 at 02:55:39AM +1100, npiggin@xxxxxxx wrote:
> This is my sketch for improving dcache locking scalability. So far I've
> only really been looking at core code to get an idea of how it might look,
> so most configurable functionality is broken (and unfortunately it might
> well be something in there which will cause a fundamental problem for me).

Umm... Some of that makes obvious sense per se, some... In particular,
all of a sudden we get contention between multiple dput() on the same
dentry, which is dirt-common for directory ones.
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