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Code Releases Activity

Skip mirror LV. Comments.

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This commit is contained in:
Alasdair Kergon 2004-05-05 18:33:01 +00:00
parent 679f0047aa
commit 9e7518de67
1 changed files with 27 additions and 0 deletions
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27
tools/pvmove.c
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@ -157,6 +157,10 @@ static struct logical_volume *_set_up_pvmove_lv(struct cmd_context *cmd,
log_print("Skipping snapshot-related LV %s", lv->name);
continue;
}
if (lv->status & MIRRORED) {
log_print("Skipping mirror LV %s", lv->name);
continue;
}
if (lv->status & LOCKED) {
log_print("Skipping locked LV %s", lv->name);
continue;
@ -168,6 +172,7 @@ static struct logical_volume *_set_up_pvmove_lv(struct cmd_context *cmd,
}
}
/* Is temporary mirror empty? */
if (!lv_mirr->le_count) {
log_error("No data to move for %s", vg->name);
return NULL;
@ -188,11 +193,13 @@ static int _update_metadata(struct cmd_context *cmd, struct volume_group *vg,
backup(vg);
/* Suspend lvs_changed */
if (!suspend_lvs(cmd, lvs_changed)) {
stack;
return 0;
}
/* Suspend mirrors on subsequent calls */
if (!first_time) {
if (!suspend_lv(cmd, lv_mirr->lvid.s)) {
stack;
@ -202,6 +209,7 @@ static int _update_metadata(struct cmd_context *cmd, struct volume_group *vg,
}
}
/* Commit on-disk metadata */
if (!vg_commit(vg)) {
log_error("ABORTING: Volume group metadata update failed.");
if (!first_time)
@ -210,6 +218,8 @@ static int _update_metadata(struct cmd_context *cmd, struct volume_group *vg,
return 0;
}
/* Activate the temporary mirror LV */
/* Only the first mirror segment gets activated as a mirror */
if (first_time) {
if (!activate_lv(cmd, lv_mirr->lvid.s)) {
log_error("ABORTING: Temporary mirror activation "
@ -225,6 +235,7 @@ static int _update_metadata(struct cmd_context *cmd, struct volume_group *vg,
return 0;
}
/* Unsuspend LVs */
if (!resume_lvs(cmd, lvs_changed)) {
log_error("Unable to resume logical volumes");
return 0;
@ -289,6 +300,7 @@ static int _set_up_pvmove(struct cmd_context *cmd, const char *pv_name,
first_time = 0;
} else {
/* Get PVs we can use for allocation */
if (!(allocatable_pvs = _get_allocatable_pvs(cmd, argc, argv,
vg, pv))) {
stack;
@ -311,12 +323,17 @@ static int _set_up_pvmove(struct cmd_context *cmd, const char *pv_name,
}
}
/* Lock lvs_changed for exclusive use and activate (with old metadata) */
if (!activate_lvs_excl(cmd, lvs_changed)) {
stack;
unlock_vg(cmd, pv->vg_name);
return ECMD_FAILED;
}
/* FIXME Presence of a mirror once set PVMOVE - now remove associated logic */
/* init_pvmove(1); */
/* vg->status |= PVMOVE; */
if (first_time) {
if (!_update_metadata
(cmd, vg, lv_mirr, lvs_changed, first_time)) {
@ -326,6 +343,7 @@ static int _set_up_pvmove(struct cmd_context *cmd, const char *pv_name,
}
}
/* LVs are all in status LOCKED */
unlock_vg(cmd, pv->vg_name);
return ECMD_PROCESSED;
@ -337,27 +355,32 @@ static int _finish_pvmove(struct cmd_context *cmd, struct volume_group *vg,
{
int r = 1;
/* Update metadata to remove mirror segments and break dependencies */
if (!remove_pvmove_mirrors(vg, lv_mirr)) {
log_error("ABORTING: Removal of temporary mirror failed");
return 0;
}
/* Store metadata without dependencies on mirror segments */
if (!vg_write(vg)) {
log_error("ABORTING: Failed to write new data locations "
"to disk.");
return 0;
}
/* Suspend LVs changed */
if (!suspend_lvs(cmd, lvs_changed)) {
log_error("Locking LVs to remove temporary mirror failed");
r = 0;
}
/* Suspend mirror LV to flush pending I/O */
if (!suspend_lv(cmd, lv_mirr->lvid.s)) {
log_error("Suspension of temporary mirror LV failed");
r = 0;
}
/* Store metadata without dependencies on mirror segments */
if (!vg_commit(vg)) {
log_error("ABORTING: Failed to write new data locations "
"to disk.");
@ -367,14 +390,17 @@ static int _finish_pvmove(struct cmd_context *cmd, struct volume_group *vg,
return 0;
}
/* Release mirror LV. (No pending I/O because it's been suspended.) */
if (!resume_lv(cmd, lv_mirr->lvid.s)) {
log_error("Unable to reactivate logical volume \"%s\"",
lv_mirr->name);
r = 0;
}
/* Unsuspend LVs */
resume_lvs(cmd, lvs_changed);
/* Deactivate mirror LV */
if (!deactivate_lv(cmd, lv_mirr->lvid.s)) {
log_error("ABORTING: Unable to deactivate temporary logical "
"volume \"%s\"", lv_mirr->name);
@ -387,6 +413,7 @@ static int _finish_pvmove(struct cmd_context *cmd, struct volume_group *vg,
return 0;
}
/* Store it on disks */
log_verbose("Writing out final volume group after pvmove");
if (!vg_write(vg) || !vg_commit(vg)) {
log_error("ABORTING: Failed to write new data locations "