linux.git - Linux kernel mainline tree

	Commit message (Collapse)	Author	Age	Files	Lines
*	ocfs2: Add statistics for the checksum and ecc operations.	Joel Becker	2009-06-03	1	-2/+27
\| \| \| \| \| \| \| \| \| \| \| \| \|	It would be nice to know how often we get checksum failures. Even better, how many of them we can fix with the single bit ecc. So, we add a statistics structure. The structure can be installed into debugfs wherever the user wants. For ocfs2, we'll put it in the superblock-specific debugfs directory and pass it down from our higher-level functions. The stats are only registered with debugfs when the filesystem supports metadata ecc. Signed-off-by: Joel Becker <joel.becker@oracle.com>
*	ocfs2: Add the underlying blockcheck code.	Joel Becker	2009-01-05	1	-0/+82
	This is the code that computes crc32 and ecc for ocfs2 metadata blocks. There are high-level functions that check whether the filesystem has the ecc feature, mid-level functions that work on a single block or array of buffer_heads, and the low-level ecc hamming code that can handle multiple buffers like crc32_le(). It's not hooked up to the filesystem yet. Signed-off-by: Joel Becker <joel.becker@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Mark Fasheh <mfasheh@suse.com>