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In order to check the consistency of each file and the reachability of
the whole dentry tree, fsck orginizes all nodes into files. And the
final recovered file(xattr is treated as a file) is organized as:
(rbtree, inum indexed)
/ \
file1 file2
/ \
file3 file4
file {
inode node // each file has 1 inode node
dentry (sub rb_tree, sqnum indexed) // '/' has no dentries,
// otherwise at least 1
// dentry is required.
trun node // the newest one truncation node
data (sub rb_tree, block number indexed) // Each file may have 0
// or many data nodes
xattrs (sub rb_tree, inum indexed) // Each file may have 0 or
// many xattr files
}
Each file from file rb_tree is constructed by scanning nodes(eg. inode,
dentry, etc.) from the TNC or the UBI volume. File's xattrs will be
initialized in subsequent steps.
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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