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authorJoel Becker <joel.becker@oracle.com>2008-11-14 01:49:11 +0300
committerMark Fasheh <mfasheh@suse.com>2009-01-05 19:36:52 +0300
commitb657c95c11088d77fc1bfc9c84d940f778bf9d12 (patch)
tree7e52e73aabbdbc55f644ad26735edc25a652ac32 /Documentation/00-INDEX
parenta68979b857283daf4acc405e476dcc8812a3ff2b (diff)
downloadlinux-b657c95c11088d77fc1bfc9c84d940f778bf9d12.tar.xz
ocfs2: Wrap inode block reads in a dedicated function.
The ocfs2 code currently reads inodes off disk with a simple ocfs2_read_block() call. Each place that does this has a different set of sanity checks it performs. Some check only the signature. A couple validate the block number (the block read vs di->i_blkno). A couple others check for VALID_FL. Only one place validates i_fs_generation. A couple check nothing. Even when an error is found, they don't all do the same thing. We wrap inode reading into ocfs2_read_inode_block(). This will validate all the above fields, going readonly if they are invalid (they never should be). ocfs2_read_inode_block_full() is provided for the places that want to pass read_block flags. Every caller is passing a struct inode with a valid ip_blkno, so we don't need a separate blkno argument either. We will remove the validation checks from the rest of the code in a later commit, as they are no longer necessary. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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