[RFC] tdb_traverse_read_lite()

[Jeremy Allison]

On Thu, Feb 28, 2013 at 02:11:18PM +1030, Rusty Russell wrote:
> Amitay asked me to look at a lightweight traverse for tdb.  This is my
> first attempt (against his ctdb tree, but it's pretty simple).
> 
> Normal traverse drops the chain lock when calling the callback, and thus
> has to handle deleting the record while it's traversing, which it does
> by grabbing a lock on the record itself, which is then tested in
> delete...
> 
> For simple callback functions, that's overkill.  So I implemented that
> to measure performance.
> 
> >From 1de5f5259caa4c34a5d66d1d09c986a5de98f6ef Mon Sep 17 00:00:00 2001
> From: Rusty Russell <rusty at rustcorp.com.au>
> Date: Thu, 28 Feb 2013 14:06:53 +1030
> Subject: [PATCH] tdb_traverse_read_lite(): lightweight traverse for tdb.

Ok, nice idea but you should be flogged soundly for calling
it 'read_*LITE*' :-). It's read_light() you monster.

Or when you relax do you turn on your 'brite nite lite' whilst
walking 'thru' your bedroom..

:-).

Jeremy.

"It's a damn poor mind, indeed, which can't think of 
at least two ways to spell a word." - Andrew Jackson.