Re: [Ext2-devel] [PATCH 1/9] extents for ext4

From: Alex Tomas
Date: Thu Aug 10 2006 - 06:04:53 EST

just to make things clear ... I thought the code isn't that bad commented. I may be wrong, of course. but could you have a look at few routines
(ext3_ext_create_new_leaf() or ext3_ext_get_blocks() fo example)
and tell me what's wrong with existing comments (besides monkey english)
and how it should look like?

thanks, Alex

>>>>> Andrew Morton (AM) writes:

AM> On Thu, 10 Aug 2006 13:29:56 +0400
AM> Alex Tomas <alex@xxxxxxxxxxxxx> wrote:

AM> - The code is very poorly commented. I'd want to spend a lot of time
AM> reviewing this implementation, but not in its present state.
>> what sort of comments are you expecting?

AM> Ones which tell me what the code is attempting to do. Ones which tell me
AM> the things which I need to know and which I cannot determine from the
AM> implementation within a reasonable period of time. Ones which tell me
AM> about the hidden design decisions, the known shortcomings, the
AM> things-still-to-do.

AM> It's a bit of an artform, really. I guess one needs to put oneself in the
AM> position of the reader, then work out what the reader wants to know.

AM> Good examples don't immediately leap to mind, I'm afraid. Maybe some of
AM> fs/buffer.c? That's important and pretty tricky code in there, so it goes
AM> to some lengths.
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