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author | Joe Thornber <ejt@redhat.com> | 2012-07-27 15:08:08 +0100 |
---|---|---|
committer | Alasdair G Kergon <agk@redhat.com> | 2012-07-27 15:08:08 +0100 |
commit | 41675aea32949786cf002c4ab179b85144d3423b (patch) | |
tree | d721f9383bc9c7614106188f12e3781fe85dc3e4 /drivers | |
parent | 0ac55489d9e3898987b2ae305844cf2af86e6b8d (diff) | |
download | linux-3.10-41675aea32949786cf002c4ab179b85144d3423b.tar.gz linux-3.10-41675aea32949786cf002c4ab179b85144d3423b.tar.bz2 linux-3.10-41675aea32949786cf002c4ab179b85144d3423b.zip |
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: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/md/dm-thin-metadata.c | 74 |
1 files changed, 39 insertions, 35 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 31f9827dfb5..82b82c318f1 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -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); |