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jbd: Split updating of journal superblock and marking journal empty

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There are three case of updating journal superblock. In the first case, we want
to mark journal as empty (setting s_sequence to 0), in the second case we want
to update log tail, in the third case we want to update s_errno. Split these
cases into separate functions. It makes the code slightly more straightforward
and later patches will make the distinction even more important.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2012-04-07 12:33:03 +02:00
parent f72cf5e223
commit 9754e39c7b
5 changed files with 104 additions and 78 deletions
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2
include/linux/jbd.h
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@ -864,7 +864,7 @@ extern int journal_destroy (journal_t *);
extern int journal_recover (journal_t *journal);
extern int journal_wipe (journal_t *, int);
extern int journal_skip_recovery (journal_t *);
extern void journal_update_superblock (journal_t *, int);
extern void journal_update_sb_log_tail (journal_t *);
extern void journal_abort (journal_t *, int);
extern int journal_errno (journal_t *);
extern void journal_ack_err (journal_t *);