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SubjectRe: [PATCHv2] Documentation: add new description of path-name lookup.
On Mon, Oct 26, 2015 at 03:35:54PM +0900, Neil Brown wrote:
> From c38784b876a181eda9a5687e618749157dc96a0e Mon Sep 17 00:00:00 2001
> From: NeilBrown <neil@brown.name>
> Date: Sat, 25 Jul 2015 10:24:41 +1000
> Subject: [PATCH] Documentation: add new description of path-name lookup.
>
> This document is based on three recent lwn.net articles.
> Some of the introductory material and linkage between articles
> has been removed, and some time-based descriptions have been
> revised.

Thanks for doing this! Nit:

> +End of the road
> +---------------
> +
> +Despite its complexity, all this pathname lookup code appears to be
> +in good shape - various parts are certainly easier to understand now
> +than even a couple of releases ago. But that doesn't mean it is
> +"finished". As already mentioned, RCU-walk currently only follows
> +symlinks that are stored in the inode so, while it handles many ext4
> +symlinks, it doesn't help with NFS, XFS, or Btrfs. That support
> +is not likely to be long delayed.

This looks likely to go stale quickly. Maybe just drop it?

I'd personally also probably drop the introduction. (I think of
Documetation/ as reference material with less of a need to tell a
"story".) But, I could be wrong.

--b.


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