diff options
author | Joel Becker <joel.becker@oracle.com> | 2008-11-13 14:49:11 -0800 |
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committer | Mark Fasheh <mfasheh@suse.com> | 2009-01-05 08:36:52 -0800 |
commit | b657c95c11088d77fc1bfc9c84d940f778bf9d12 (patch) | |
tree | 7e52e73aabbdbc55f644ad26735edc25a652ac32 /security | |
parent | a68979b857283daf4acc405e476dcc8812a3ff2b (diff) |
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>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions