Jan Kara 932bb305ba
jbd2: remove bh_state lock from checkpointing code ...
All accesses to checkpointing entries in journal_head are protected
by j_list_lock. Thus __jbd2_journal_remove_checkpoint() doesn't really
need bh_state lock.
Also the only part of journal head that the rest of checkpointing code
needs to check is jh->b_transaction which is safe to read under
j_list_lock.
So we can safely remove bh_state lock from all of checkpointing code which
makes it considerably prettier.
Signed-off-by: Jan Kara <jack@suse.cz >
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu >
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932bb305ba