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metadata: read VG/LV profile name from metadata if it exists and load it

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This is per VG/LV profile loading on demand. The profile itself is saved
in struct volume_group/logical_volume as "profile" field so we can
reference it whenever needed.
This commit is contained in:
Peter Rajnoha 2013-06-25 12:28:36 +02:00
parent bfde83eb34
commit c5e6bc393e
3 changed files with 26 additions and 4 deletions
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28
lib/format_text/import_vsn1.c
View File

@ -525,7 +525,7 @@ static int _read_lvnames(struct format_instance *fid __attribute__((unused)),
{
struct dm_pool *mem = vg->vgmem;
struct logical_volume *lv;
const char *lv_alloc;
const char *str;
const struct dm_config_value *cv;
const char *hostname;
uint64_t timestamp = 0;
@ -565,14 +565,25 @@ static int _read_lvnames(struct format_instance *fid __attribute__((unused)),
}
lv->alloc = ALLOC_INHERIT;
if (dm_config_get_str(lvn, "allocation_policy", &lv_alloc)) {
lv->alloc = get_alloc_from_string(lv_alloc);
if (dm_config_get_str(lvn, "allocation_policy", &str)) {
lv->alloc = get_alloc_from_string(str);
if (lv->alloc == ALLOC_INVALID) {
log_warn("WARNING: Ignoring unrecognised allocation policy %s for LV %s", lv_alloc, lv->name);
log_warn("WARNING: Ignoring unrecognised allocation policy %s for LV %s", str, lv->name);
lv->alloc = ALLOC_INHERIT;
}
}
if (dm_config_get_str(lvn, "profile", &str)) {
log_debug_metadata("Adding profile configuration %s for LV %s/%s.",
str, vg->name, lv->name);
lv->profile = add_profile(vg->cmd, str);
if (!lv->profile) {
log_error("Failed to add configuration profile %s for LV %s/%s",
str, vg->name, lv->name);
return 0;
}
}
if (!_read_int32(lvn, "read_ahead", &lv->read_ahead))
/* If not present, choice of auto or none is configurable */
lv->read_ahead = vg->cmd->default_settings.read_ahead;
@ -789,6 +800,15 @@ static struct volume_group *_read_vg(struct format_instance *fid,
}
}
if (dm_config_get_str(vgn, "profile", &str)) {
log_debug_metadata("Adding profile configuration %s for VG %s.", str, vg->name);
vg->profile = add_profile(vg->cmd, str);
if (!vg->profile) {
log_error("Failed to add configuration profile %s for VG %s", str, vg->name);
goto bad;
}
}
if (!_read_uint32(vgn, "metadata_copies", &vg->mda_copies)) {
vg->mda_copies = DEFAULT_VGMETADATACOPIES;
}

1
lib/metadata/lv.h
View File

@ -30,6 +30,7 @@ struct logical_volume {
uint64_t status;
alloc_policy_t alloc;
struct profile *profile;
uint32_t read_ahead;
int32_t major;
int32_t minor;

1
lib/metadata/vg.h
View File

@ -58,6 +58,7 @@ struct volume_group {
struct volume_group *vg_ondisk;
alloc_policy_t alloc;
struct profile *profile;
uint64_t status;
struct id id;