Commit 41675aea authored by Joe Thornber's avatar Joe Thornber Committed by Alasdair G Kergon
Browse files

dm thin metadata: factor __setup_btree_details out of init_pmd 



Factor __setup_btree_details out of init_pmd in dm-thin-metadata.

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent 0ac55489

drivers/md/dm-thin-metadata.c

+39 −35
Original line number Diff line number Diff line
@@ -371,6 +371,44 @@ static int superblock_all_zeroes(struct dm_block_manager *bm, int *result) 
	return dm_bm_unlock(b);

}



static void __setup_btree_details(struct dm_pool_metadata *pmd)

{

	pmd->info.tm = pmd->tm;

	pmd->info.levels = 2;

	pmd->info.value_type.context = pmd->data_sm;

	pmd->info.value_type.size = sizeof(__le64);

	pmd->info.value_type.inc = data_block_inc;

	pmd->info.value_type.dec = data_block_dec;

	pmd->info.value_type.equal = data_block_equal;



	memcpy(&pmd->nb_info, &pmd->info, sizeof(pmd->nb_info));

	pmd->nb_info.tm = pmd->nb_tm;



	pmd->tl_info.tm = pmd->tm;

	pmd->tl_info.levels = 1;

	pmd->tl_info.value_type.context = &pmd->info;

	pmd->tl_info.value_type.size = sizeof(__le64);

	pmd->tl_info.value_type.inc = subtree_inc;

	pmd->tl_info.value_type.dec = subtree_dec;

	pmd->tl_info.value_type.equal = subtree_equal;



	pmd->bl_info.tm = pmd->tm;

	pmd->bl_info.levels = 1;

	pmd->bl_info.value_type.context = pmd->data_sm;

	pmd->bl_info.value_type.size = sizeof(__le64);

	pmd->bl_info.value_type.inc = data_block_inc;

	pmd->bl_info.value_type.dec = data_block_dec;

	pmd->bl_info.value_type.equal = data_block_equal;



	pmd->details_info.tm = pmd->tm;

	pmd->details_info.levels = 1;

	pmd->details_info.value_type.context = NULL;

	pmd->details_info.value_type.size = sizeof(struct disk_device_details);

	pmd->details_info.value_type.inc = NULL;

	pmd->details_info.value_type.dec = NULL;

	pmd->details_info.value_type.equal = NULL;

}



static int init_pmd(struct dm_pool_metadata *pmd,

		    struct dm_block_manager *bm,

		    dm_block_t nr_blocks, int create)
@@ -436,41 +474,7 @@ static int init_pmd(struct dm_pool_metadata *pmd, 
		goto bad_data_sm;

	}



	pmd->info.tm = tm;

	pmd->info.levels = 2;

	pmd->info.value_type.context = pmd->data_sm;

	pmd->info.value_type.size = sizeof(__le64);

	pmd->info.value_type.inc = data_block_inc;

	pmd->info.value_type.dec = data_block_dec;

	pmd->info.value_type.equal = data_block_equal;



	memcpy(&pmd->nb_info, &pmd->info, sizeof(pmd->nb_info));

	pmd->nb_info.tm = pmd->nb_tm;



	pmd->tl_info.tm = tm;

	pmd->tl_info.levels = 1;

	pmd->tl_info.value_type.context = &pmd->info;

	pmd->tl_info.value_type.size = sizeof(__le64);

	pmd->tl_info.value_type.inc = subtree_inc;

	pmd->tl_info.value_type.dec = subtree_dec;

	pmd->tl_info.value_type.equal = subtree_equal;



	pmd->bl_info.tm = tm;

	pmd->bl_info.levels = 1;

	pmd->bl_info.value_type.context = pmd->data_sm;

	pmd->bl_info.value_type.size = sizeof(__le64);

	pmd->bl_info.value_type.inc = data_block_inc;

	pmd->bl_info.value_type.dec = data_block_dec;

	pmd->bl_info.value_type.equal = data_block_equal;



	pmd->details_info.tm = tm;

	pmd->details_info.levels = 1;

	pmd->details_info.value_type.context = NULL;

	pmd->details_info.value_type.size = sizeof(struct disk_device_details);

	pmd->details_info.value_type.inc = NULL;

	pmd->details_info.value_type.dec = NULL;

	pmd->details_info.value_type.equal = NULL;



	__setup_btree_details(pmd);

	pmd->root = 0;



	init_rwsem(&pmd->root_lock);