Re: [PATCH 0/2] Add inode checksum support to ext4

[Joel Becker]

On Fri, Apr 08, 2011 at 12:27:48PM -0700, Mingming Cao wrote:
> We had some discussion about this week at SF (at the ext4 bof at the
> linux colloboration summit). Beyond checksumming the inode itself, it
> would be more useful to checksum the extent indexing blocks, as the ext3
> corruption actually happen at the indirect block.  

	You want to checksum all metadata.  ocfs2 takes advantage of
this because we can just EIO any bad metadata and continue to serve the
rest of the filesystem.

Joel

-- 

"Time is an illusion, lunchtime doubly so."
        -Douglas Adams

			http://www.jlbec.org/
			jlbec@xxxxxxxxxxxx
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/