Commit 74f657d8 authored by Filipe Manana's avatar Filipe Manana Committed by David Sterba
Browse files

Btrfs: remove no longer used member num_dirty_bgs from transaction 



The member num_dirty_bgs of struct btrfs_transaction is not used anymore,
it is set and incremented but nothing reads its value anymore. Its last
read use was removed by commit 64403612 ("btrfs: rework
btrfs_check_space_for_delayed_refs"). So just remove that member.

Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 2b584c68

fs/btrfs/extent-tree.c

+0 −1
Original line number Diff line number Diff line
@@ -6431,7 +6431,6 @@ static int update_block_group(struct btrfs_trans_handle *trans, 
		if (list_empty(&cache->dirty_list)) {

			list_add_tail(&cache->dirty_list,

				      &trans->transaction->dirty_bgs);

			trans->transaction->num_dirty_bgs++;

			trans->delayed_ref_updates++;

			btrfs_get_block_group(cache);

		}

fs/btrfs/transaction.c

+0 −1
Original line number Diff line number Diff line
@@ -233,7 +233,6 @@ loop: 
	INIT_LIST_HEAD(&cur_trans->io_bgs);

	INIT_LIST_HEAD(&cur_trans->dropped_roots);

	mutex_init(&cur_trans->cache_write_mutex);

	cur_trans->num_dirty_bgs = 0;

	spin_lock_init(&cur_trans->dirty_bgs_lock);

	INIT_LIST_HEAD(&cur_trans->deleted_bgs);

	spin_lock_init(&cur_trans->dropped_roots_lock);

fs/btrfs/transaction.h

+0 −1
Original line number Diff line number Diff line
@@ -80,7 +80,6 @@ struct btrfs_transaction { 
	 */

	struct mutex cache_write_mutex;

	spinlock_t dirty_bgs_lock;

	unsigned int num_dirty_bgs;

	/* Protected by spin lock fs_info->unused_bgs_lock. */

	struct list_head deleted_bgs;

	spinlock_t dropped_roots_lock;

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