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2006 Apr 18
0
Use of journal->j_blk_offset
Hi everyone, So this question is more for people who are familiar with the internals of ext3. I notice that the function journal_init_dev() sets the value journal->j_blk_offset = start This means that start can be any arbitrary block number on the device. However, later in the function journal_bmap() it is never actually used. The value of *retp in journal_bmap() is set to *retp = blocknr; /* + journal->j_blk_offset */ A comment on the top of journal_bmap() says t...