From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alberich de megres <alberich2k5@gmail.com>
Subject: ext4 allocator
Date: Mon, 25 Jan 2010 22:14:13 +0100
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Hi!!

I'm studyng ext4 code, and i got a doubt on a situation:

Supposing a 4K page size, and a fs with 8K.. when we are filling page info,:

{ 4K page   }{ 4K page   }{ 4K page   }{ 4K page   }
[       group 0 bitmap      ] [      group 0 buddy        ]

Clearly bitmap and buddy info don't fits on a single page, but e4b
structure saves only one page address.

How mb allocator menages this situation??

Thanks!!!