Re: Lockless pagecache perhaps for 2.6.18?

[Hugh Dickins <hugh@veritas.com>]

On Thu, 23 Mar 2006, Nick Piggin wrote:
> 
> Would there be any objection to having my lockless pagecache patches
> merged into -mm, for a possible mainline merge after 2.6.17 (ie. if/
> when the mm hackers feel comfortable with it).

No objection from me (though I've still to study it).
But the timing should be as suits Andrew and state of -mm tree.

> There are now just 3 patches: 15 files, 312 insertions, 81 deletions
> for the core changes, including RCU radix-tree. (not counting those
> last two I just sent you Andrew (VM_BUG_ON, find_trylock_page))

Sounds reasonable (and I've come to prefer 3 patches to 141).

> It is fairly well commented, and not overly complex (IMO) compared
> with other lockless stuff in the tree now.
> 
> My main motivation is to get more testing and more serious reviews,
> rather than trying to clear a fast path into mainline.

Yes, please let's not presuppose it'll go into 2.6.18:
that will depend on what confidence it acquires in -mm.

Hugh

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