04 Jun, 2009
1 commit
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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
06 Jan, 2009
1 commit
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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
Cc: Christoph Hellwig
Signed-off-by: Mark Fasheh