From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sat,  9 Mar 2013 20:34:51 -0500
To: 9fans@9fans.net
Message-ID: <561a3610e30afeae78804883908588d7@brasstown.quanstro.net>
In-Reply-To: <7bab0d6b4131bd4f501b012f531b6426@rei2.9hal>
References: <7bab0d6b4131bd4f501b012f531b6426@rei2.9hal>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Subject: Re: [9fans] dirty blocks in cwfs
Topicbox-Message-UUID: 25ba5b0c-ead8-11e9-9d60-3106f5b1d025

> for example, if you have 0 dirty blocks and then temporarily create
> 100MB file and then delete it *before* it is dumped. then you got
> 100MB of dirty blocks in the cache. these blocks will not be cleaned
> out by dump as the blocks are not referneced in the filesystem. these
> blocks belong to no files but are chained in the free list. these
> blocks are not lost. they will be used when allocating storage for
> files. if these files get dumped, the dirty pool shrinks.

these blocks may not be lost in the cache, but they are lost to the worm.

- erik