| /* |
| * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved. |
| * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
| * |
| * This file is part of LVM2. |
| * |
| * This copyrighted material is made available to anyone wishing to use, |
| * modify, copy, or redistribute it subject to the terms and conditions |
| * of the GNU Lesser General Public License v.2.1. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "tools.h" |
| |
| static int _lvscan_single_lvmetad(struct cmd_context *cmd, struct logical_volume *lv) |
| { |
| struct pv_list *pvl; |
| struct dm_list all_pvs; |
| char pvid_s[64] __attribute__((aligned(8))); |
| |
| if (!lvmetad_used()) |
| return ECMD_PROCESSED; |
| |
| dm_list_init(&all_pvs); |
| |
| if (!get_pv_list_for_lv(lv->vg->vgmem, lv, &all_pvs)) |
| return ECMD_FAILED; |
| |
| dm_list_iterate_items(pvl, &all_pvs) { |
| if (!pvl->pv->dev) { |
| if (!id_write_format(&pvl->pv->id, pvid_s, sizeof(pvid_s))) |
| stack; |
| else |
| log_warn("WARNING: Device for PV %s already missing, skipping.", |
| pvid_s); |
| continue; |
| } |
| if (!lvmetad_pvscan_single(cmd, pvl->pv->dev, NULL, NULL)) |
| return ECMD_FAILED; |
| } |
| |
| return ECMD_PROCESSED; |
| } |
| |
| static int lvscan_single(struct cmd_context *cmd, struct logical_volume *lv, |
| struct processing_handle *handle __attribute__((unused))) |
| { |
| struct lvinfo info; |
| int inkernel, snap_active = 1; |
| dm_percent_t snap_percent; /* fused, fsize; */ |
| |
| const char *active_str, *snapshot_str; |
| |
| if (arg_is_set(cmd, cache_long_ARG)) |
| return _lvscan_single_lvmetad(cmd, lv); |
| |
| if (!arg_is_set(cmd, all_ARG) && !lv_is_visible(lv)) |
| return ECMD_PROCESSED; |
| |
| inkernel = lv_info(cmd, lv, 0, &info, 0, 0) && info.exists; |
| if (lv_is_cow(lv)) { |
| if (inkernel && |
| (snap_active = lv_snapshot_percent(lv, &snap_percent))) |
| if (snap_percent == DM_PERCENT_INVALID) |
| snap_active = 0; |
| } |
| |
| /* FIXME Add -D arg to skip this! */ |
| if (inkernel && snap_active) |
| active_str = "ACTIVE "; |
| else |
| active_str = "inactive "; |
| |
| if (lv_is_origin(lv)) |
| snapshot_str = "Original"; |
| else if (lv_is_cow(lv)) |
| snapshot_str = "Snapshot"; |
| else |
| snapshot_str = " "; |
| |
| log_print_unless_silent("%s%s '%s%s/%s' [%s] %s", active_str, snapshot_str, |
| cmd->dev_dir, lv->vg->name, lv->name, |
| display_size(cmd, lv->size), |
| get_alloc_string(lv->alloc)); |
| |
| return ECMD_PROCESSED; |
| } |
| |
| int lvscan(struct cmd_context *cmd, int argc, char **argv) |
| { |
| const char *reason = NULL; |
| |
| if (argc && !arg_is_set(cmd, cache_long_ARG)) { |
| log_error("No additional command line arguments allowed"); |
| return EINVALID_CMD_LINE; |
| } |
| |
| if (!lvmetad_used() && arg_is_set(cmd, cache_long_ARG)) |
| log_verbose("Ignoring lvscan --cache because lvmetad is not in use."); |
| |
| /* Needed because this command has NO_LVMETAD_AUTOSCAN. */ |
| if (lvmetad_used() && (!lvmetad_token_matches(cmd) || lvmetad_is_disabled(cmd, &reason))) { |
| if (lvmetad_used() && !lvmetad_pvscan_all_devs(cmd, 0)) { |
| log_warn("WARNING: Not using lvmetad because cache update failed."); |
| lvmetad_make_unused(cmd); |
| } |
| |
| if (lvmetad_used() && lvmetad_is_disabled(cmd, &reason)) { |
| log_warn("WARNING: Not using lvmetad because %s.", reason); |
| lvmetad_make_unused(cmd); |
| } |
| |
| /* |
| * FIXME: doing lvscan --cache after a full scan is pointless. |
| * Should the cache case just exit here? |
| */ |
| } |
| |
| return process_each_lv(cmd, argc, argv, NULL, NULL, 0, NULL, &lvscan_single); |
| } |