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Convert vgreduce to use vg_read_for_update.

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Sun May  3 12:50:58 CEST 2009  Petr Rockai <me@mornfall.net>
  * Convert vgreduce to use vg_read_for_update.

Rebased 6/26/2009 - Dave W.
This commit is contained in:
Dave Wysochanski 2009-07-01 17:01:46 +00:00
parent 3479d0ee30
commit f962adbb52
1 changed files with 20 additions and 22 deletions
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42
tools/vgreduce.c
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@ -382,7 +382,6 @@ static int _vgreduce_single(struct cmd_context *cmd, struct volume_group *vg,
{
struct pv_list *pvl;
struct volume_group *orphan_vg = NULL;
int consistent = 1;
int r = ECMD_FAILED;
const char *name = pv_dev_name(pv);
@ -424,11 +423,11 @@ static int _vgreduce_single(struct cmd_context *cmd, struct volume_group *vg,
vg->free_count -= pv_pe_count(pv) - pv_pe_alloc_count(pv);
vg->extent_count -= pv_pe_count(pv);
if(!(orphan_vg = vg_read_internal(cmd, vg->fid->fmt->orphan_vg_name, NULL, &consistent)) ||
!consistent) {
log_error("Unable to read existing orphan PVs");
orphan_vg = vg_read_for_update(cmd, vg->fid->fmt->orphan_vg_name,
NULL, LOCK_NONBLOCKING);
if (vg_read_error(orphan_vg))
goto bad;
}
if (!vg_split_mdas(cmd, vg, orphan_vg) || !vg->pv_count) {
log_error("Cannot remove final metadata area on \"%s\" from \"%s\"",
@ -463,7 +462,6 @@ int vgreduce(struct cmd_context *cmd, int argc, char **argv)
struct volume_group *vg;
char *vg_name;
int ret = ECMD_FAILED;
int consistent = 1;
int fixed = 1;
int repairing = arg_count(cmd, removemissing_ARG);
int saved_ignore_suspended_devices = ignore_suspended_devices();
@ -511,25 +509,22 @@ int vgreduce(struct cmd_context *cmd, int argc, char **argv)
}
log_verbose("Finding volume group \"%s\"", vg_name);
if (!lock_vol(cmd, vg_name, LCK_VG_WRITE)) {
log_error("Can't get lock for %s", vg_name);
return ECMD_FAILED;
}
if (repairing)
init_ignore_suspended_devices(1);
if ((!(vg = vg_read_internal(cmd, vg_name, NULL, &consistent)) || !consistent)
&& !repairing) {
log_error("Volume group \"%s\" doesn't exist", vg_name);
vg = vg_read_for_update(cmd, vg_name, NULL, READ_ALLOW_EXPORTED);
if (vg_read_error(vg) == FAILED_ALLOCATION ||
vg_read_error(vg) == FAILED_NOTFOUND)
goto out;
}
if (vg && !vg_check_status(vg, CLUSTERED))
/* FIXME We want to allow read-only VGs to be changed here? */
if (vg_read_error(vg) && vg_read_error(vg) != FAILED_READ_ONLY
&& !arg_count(cmd, removemissing_ARG))
goto out;
if (repairing) {
if (vg && consistent && !vg_missing_pv_count(vg)) {
if (!vg_read_error(vg) && !vg_missing_pv_count(vg)) {
log_error("Volume group \"%s\" is already consistent",
vg_name);
ret = ECMD_PROCESSED;
@ -537,13 +532,16 @@ int vgreduce(struct cmd_context *cmd, int argc, char **argv)
}
vg_release(vg);
consistent = !arg_count(cmd, force_ARG);
if (!(vg = vg_read_internal(cmd, vg_name, NULL, &consistent))) {
log_error("Volume group \"%s\" not found", vg_name);
goto out;
}
if (!vg_check_status(vg, CLUSTERED))
log_verbose("Trying to open VG %s for recovery...", vg_name);
vg = vg_read_for_update(cmd, vg_name, NULL,
READ_ALLOW_INCONSISTENT
| READ_ALLOW_EXPORTED);
if (vg_read_error(vg) && vg_read_error(vg) != FAILED_READ_ONLY
&& vg_read_error(vg) != FAILED_INCONSISTENT)
goto out;
if (!archive(vg))
goto out;