Re: [Ext2-devel] [PATCH 1/5] Forking ext4 filesystem from ext3 filesystem
From: Alex Tomas
Date: Thu Aug 10 2006 - 17:07:59 EST
>>>>> Jeff Garzik (JG) writes:
>> A buffer_head is the kernel's sole abstraction of a disk block.
>> Filesystems use disk blocks a lot, and they need such an abstraction.
JG> IMO Al Viro work has shown that you can do pagecache I/O without needing
JG> such a heavyweight system.
in delayed allocation patch for ext3 (ontop of extents) we do use
bio's for data.
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