diff options
Diffstat (limited to 'lib/activate/dev_manager.c')
| -rw-r--r-- | lib/activate/dev_manager.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/lib/activate/dev_manager.c b/lib/activate/dev_manager.c index cafb94ad5..689305f7b 100644 --- a/lib/activate/dev_manager.c +++ b/lib/activate/dev_manager.c @@ -1957,6 +1957,71 @@ out: return r; } +int dev_manager_vdo_pool_size_config(struct dev_manager *dm, + const struct logical_volume *lv, + struct vdo_pool_size_config *cfg) +{ + const char *dlid; + struct dm_info info; + uint64_t start, length; + struct dm_task *dmt = NULL; + char *type = NULL; + char *params = NULL; + int r = 0; + unsigned version = 0; + + memset(cfg, 0, sizeof(*cfg)); + + if (!(dlid = build_dm_uuid(dm->mem, lv, lv_layer(lv)))) + return_0; + + if (!(dmt = _setup_task_run(DM_DEVICE_TABLE, &info, NULL, dlid, 0, 0, 0, 0, 0, 0))) + return_0; + + if (!info.exists) + goto inactive; /* VDO device is not active, should not happen here... */ + + log_debug_activation("Checking VDO pool table line for LV %s.", + display_lvname(lv)); + + if (dm_get_next_target(dmt, NULL, &start, &length, &type, ¶ms)) { + log_error("More then one table line found for %s.", + display_lvname(lv)); + goto out; + } + + if (!type || strcmp(type, TARGET_NAME_VDO)) { + log_error("Expected %s segment type but got %s instead.", + TARGET_NAME_VDO, type ? type : "NULL"); + goto out; + } + + if (sscanf(params, "V%u %*s " FMTu64 " %*u " FMTu32, + &version, &cfg->physical_size, &cfg->block_map_cache_size_mb) != 3) { + log_error("Failed to parse VDO parameters %s for LV %s.", + params, display_lvname(lv)); + goto out; + } + + switch (version) { + case 2: break; + case 4: break; + default: log_warn("WARNING: Unknown VDO table line version %u.", version); + } + + cfg->virtual_size = length; + cfg->physical_size *= 8; // From 4K unit to 512B + cfg->block_map_cache_size_mb /= 256; // From 4K unit to MiB + cfg->index_memory_size_mb = first_seg(lv)->vdo_params.index_memory_size_mb; // Preserved + +inactive: + r = 1; +out: + dm_task_destroy(dmt); + + return r; +} + /*************************/ /* NEW CODE STARTS HERE */ |