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jbd2: remove unused waitqueues 

j_wait_logspace and j_wait_checkpoint are unused.  Remove them.

Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Jan Kara 2013-06-04 12:24:11 -04:00 committed by Theodore Ts'o
parent fe1e8db598
commit f29fad7210
3 changed files with 0 additions and 14 deletions
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4
fs/jbd2/checkpoint.c
View File

@ -625,10 +625,6 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh)
__jbd2_journal_drop_transaction(journal, transaction);
jbd2_journal_free_transaction(transaction);
/* Just in case anybody was waiting for more transactions to be
checkpointed... */
wake_up(&journal->j_wait_logspace);
ret = 1;
out:
return ret;

2
fs/jbd2/journal.c
View File

@ -1027,9 +1027,7 @@ static journal_t * journal_init_common (void)
return NULL;
init_waitqueue_head(&journal->j_wait_transaction_locked);
init_waitqueue_head(&journal->j_wait_logspace);
init_waitqueue_head(&journal->j_wait_done_commit);
init_waitqueue_head(&journal->j_wait_checkpoint);
init_waitqueue_head(&journal->j_wait_commit);
init_waitqueue_head(&journal->j_wait_updates);
mutex_init(&journal->j_barrier);

8
include/linux/jbd2.h
View File

@ -687,9 +687,7 @@ jbd2_time_diff(unsigned long start, unsigned long end)
* waiting for checkpointing
* @j_wait_transaction_locked: Wait queue for waiting for a locked transaction
* to start committing, or for a barrier lock to be released
* @j_wait_logspace: Wait queue for waiting for checkpointing to complete
* @j_wait_done_commit: Wait queue for waiting for commit to complete
* @j_wait_checkpoint: Wait queue to trigger checkpointing
* @j_wait_commit: Wait queue to trigger commit
* @j_wait_updates: Wait queue to wait for updates to complete
* @j_checkpoint_mutex: Mutex for locking against concurrent checkpoints
@ -794,15 +792,9 @@ struct journal_s
*/
wait_queue_head_t j_wait_transaction_locked;
/* Wait queue for waiting for checkpointing to complete */
wait_queue_head_t j_wait_logspace;
/* Wait queue for waiting for commit to complete */
wait_queue_head_t j_wait_done_commit;
/* Wait queue to trigger checkpointing */
wait_queue_head_t j_wait_checkpoint;
/* Wait queue to trigger commit */
wait_queue_head_t j_wait_commit;