[Ocfs2-devel] [PATCH] ocfs2: no need flush workqueue before destroying it

[Joseph Qi]

On 17/10/13 11:04, piaojun wrote:
> 1. delete redundant flush_workqueue();
> 2. delete some unused func declaration and assignment.
> 
Either looks good to me. But I do suggest separate these into two
patches since one is code optimizing and the other is pure cleanup.

Thanks,
Joseph

> Signed-off-by: Jun Piao <piaojun at huawei.com>
> ---
>  fs/ocfs2/alloc.c             | 2 --
>  fs/ocfs2/cluster/heartbeat.h | 2 --
>  fs/ocfs2/dlm/dlmdomain.c     | 1 -
>  fs/ocfs2/dlmfs/dlmfs.c       | 1 -
>  fs/ocfs2/super.c             | 4 +---
>  5 files changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
> index a177eae..31a416d 100644
> --- a/fs/ocfs2/alloc.c
> +++ b/fs/ocfs2/alloc.c
> @@ -3585,8 +3585,6 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
>  		 * The easy case - we can just plop the record right in.
>  		 */
>  		*left_rec = *split_rec;
> -
> -		has_empty_extent = 0;
>  	} else
>  		le16_add_cpu(&left_rec->e_leaf_clusters, split_clusters);
> 
> diff --git a/fs/ocfs2/cluster/heartbeat.h b/fs/ocfs2/cluster/heartbeat.h
> index 3ef5137..a9e67ef 100644
> --- a/fs/ocfs2/cluster/heartbeat.h
> +++ b/fs/ocfs2/cluster/heartbeat.h
> @@ -79,10 +79,8 @@ void o2hb_fill_node_map(unsigned long *map,
>  			unsigned bytes);
>  void o2hb_exit(void);
>  int o2hb_init(void);
> -int o2hb_check_node_heartbeating(u8 node_num);
>  int o2hb_check_node_heartbeating_no_sem(u8 node_num);
>  int o2hb_check_node_heartbeating_from_callback(u8 node_num);
> -int o2hb_check_local_node_heartbeating(void);
>  void o2hb_stop_all_regions(void);
>  int o2hb_get_all_regions(char *region_uuids, u8 numregions);
>  int o2hb_global_heartbeat_active(void);
> diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
> index a2b19fb..e1fea14 100644
> --- a/fs/ocfs2/dlm/dlmdomain.c
> +++ b/fs/ocfs2/dlm/dlmdomain.c
> @@ -394,7 +394,6 @@ int dlm_domain_fully_joined(struct dlm_ctxt *dlm)
>  static void dlm_destroy_dlm_worker(struct dlm_ctxt *dlm)
>  {
>  	if (dlm->dlm_worker) {
> -		flush_workqueue(dlm->dlm_worker);
>  		destroy_workqueue(dlm->dlm_worker);
>  		dlm->dlm_worker = NULL;
>  	}
> diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
> index 9ab9e18..edce7b5 100644
> --- a/fs/ocfs2/dlmfs/dlmfs.c
> +++ b/fs/ocfs2/dlmfs/dlmfs.c
> @@ -670,7 +670,6 @@ static void __exit exit_dlmfs_fs(void)
>  {
>  	unregister_filesystem(&dlmfs_fs_type);
> 
> -	flush_workqueue(user_dlm_worker);
>  	destroy_workqueue(user_dlm_worker);
> 
>  	/*
> diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
> index 8073349..040bbb6 100644
> --- a/fs/ocfs2/super.c
> +++ b/fs/ocfs2/super.c
> @@ -2521,10 +2521,8 @@ static void ocfs2_delete_osb(struct ocfs2_super *osb)
>  	/* This function assumes that the caller has the main osb resource */
> 
>  	/* ocfs2_initializer_super have already created this workqueue */
> -	if (osb->ocfs2_wq) {
> -		flush_workqueue(osb->ocfs2_wq);
> +	if (osb->ocfs2_wq)
>  		destroy_workqueue(osb->ocfs2_wq);
> -	}
> 
>  	ocfs2_free_slot_info(osb);
>