From d6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208 Mon Sep 17 00:00:00 2001 From: Joel Becker Date: Fri, 17 Oct 2008 14:55:01 -0700 Subject: ocfs2: block read meta ecc. Add block check calls to the read_block validate functions. This is the almost all of the read-side checking of metaecc. xattr buckets are not checked yet. Writes are also unchecked, and so a read-write mount will quickly fail. Signed-off-by: Joel Becker Signed-off-by: Mark Fasheh --- fs/ocfs2/blockcheck.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'fs/ocfs2/blockcheck.c') diff --git a/fs/ocfs2/blockcheck.c b/fs/ocfs2/blockcheck.c index 2bf3d7f61aec..2ce6ae5e4b8c 100644 --- a/fs/ocfs2/blockcheck.c +++ b/fs/ocfs2/blockcheck.c @@ -24,6 +24,8 @@ #include #include +#include + #include "ocfs2.h" #include "blockcheck.h" @@ -292,6 +294,10 @@ int ocfs2_block_check_validate(void *data, size_t blocksize, if (crc == check.bc_crc32e) goto out; + mlog(ML_ERROR, + "CRC32 failed: stored: %u, computed %u. Applying ECC.\n", + (unsigned int)check.bc_crc32e, (unsigned int)crc); + /* Ok, try ECC fixups */ ecc = ocfs2_hamming_encode_block(data, blocksize); ocfs2_hamming_fix_block(data, blocksize, ecc ^ check.bc_ecc); @@ -301,6 +307,9 @@ int ocfs2_block_check_validate(void *data, size_t blocksize, if (crc == check.bc_crc32e) goto out; + mlog(ML_ERROR, "Fixed CRC32 failed: stored: %u, computed %u\n", + (unsigned int)check.bc_crc32e, (unsigned int)crc); + rc = -EIO; out: -- cgit