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Add vg_set_max_lv() liblvm function and move vgchange logic inside.

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Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
This commit is contained in:
Dave Wysochanski 2009-07-09 10:06:00 +00:00
parent 3f6a21ead4
commit a88bfbcb13
3 changed files with 31 additions and 23 deletions
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1
lib/metadata/metadata-exported.h
View File

@ -435,6 +435,7 @@ int vg_rename(struct cmd_context *cmd, struct volume_group *vg,
const char *new_name);
int vg_extend(struct volume_group *vg, int pv_count, char **pv_names);
int vg_set_extent_size(vg_t *vg, uint32_t new_extent_size);
int vg_set_max_lv(vg_t *vg, uint32_t max_lv);
int vg_split_mdas(struct cmd_context *cmd, struct volume_group *vg_from,
struct volume_group *vg_to);

28
lib/metadata/metadata.c
View File

@ -774,6 +774,34 @@ int vg_set_extent_size(vg_t *vg, uint32_t new_size)
return 1;
}
int vg_set_max_lv(vg_t *vg, uint32_t max_lv)
{
if (!(vg_status(vg) & RESIZEABLE_VG)) {
log_error("Volume group \"%s\" must be resizeable "
"to change MaxLogicalVolume", vg->name);
return 0;
}
if (!(vg->fid->fmt->features & FMT_UNLIMITED_VOLS)) {
if (!max_lv)
max_lv = 255;
else if (max_lv > 255) {
log_error("MaxLogicalVolume limit is 255");
return 0;
}
}
if (max_lv && max_lv < vg_visible_lvs(vg)) {
log_error("MaxLogicalVolume is less than the current number "
"%d of LVs for %s", vg_visible_lvs(vg),
vg->name);
return 0;
}
vg->max_lv = max_lv;
return 1;
}
/*
* Separate metadata areas after splitting a VG.
* Also accepts orphan VG as destination (for vgreduce).

25
tools/vgchange.c
View File

@ -293,32 +293,11 @@ static int _vgchange_logicalvolume(struct cmd_context *cmd,
{
uint32_t max_lv = arg_uint_value(cmd, logicalvolume_ARG, 0);
if (!(vg_status(vg) & RESIZEABLE_VG)) {
log_error("Volume group \"%s\" must be resizeable "
"to change MaxLogicalVolume", vg->name);
return ECMD_FAILED;
}
if (!(vg->fid->fmt->features & FMT_UNLIMITED_VOLS)) {
if (!max_lv)
max_lv = 255;
else if (max_lv > 255) {
log_error("MaxLogicalVolume limit is 255");
return ECMD_FAILED;
}
}
if (max_lv && max_lv < vg_visible_lvs(vg)) {
log_error("MaxLogicalVolume is less than the current number "
"%d of LVs for %s", vg_visible_lvs(vg),
vg->name);
return ECMD_FAILED;
}
if (!archive(vg))
return ECMD_FAILED;
vg->max_lv = max_lv;
if (!vg_set_max_lv(vg, max_lv))
return ECMD_FAILED;
if (!vg_write(vg) || !vg_commit(vg))
return ECMD_FAILED;