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lvmetad: simplify pvid memory allocation.

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Since pvid_dup and cft config appears to be tightly
binded together - reuse it's memory pool for string.
Simplifies release of hashes.
This commit is contained in:
Zdenek Kabelac 2012-12-15 17:00:35 +01:00
parent 6f9e26f5c0
commit ed23da95b6
1 changed files with 3 additions and 18 deletions
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21
daemons/lvmetad/lvmetad-core.c
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@ -67,13 +67,6 @@ static void destroy_metadata_hashes(lvmetad_state *s)
dm_hash_destroy(s->vgid_to_metadata);
dm_hash_destroy(s->vgid_to_vgname);
dm_hash_destroy(s->vgname_to_vgid);
n = dm_hash_get_first(s->device_to_pvid);
while (n) {
dm_free(dm_hash_get_data(s->device_to_pvid, n));
n = dm_hash_get_next(s->device_to_pvid, n);
}
dm_hash_destroy(s->device_to_pvid);
dm_hash_destroy(s->pvid_to_vgid);
}
@ -768,7 +761,6 @@ static response pv_gone(lvmetad_state *s, request r)
const char *pvid = daemon_request_str(r, "uuid", NULL);
int64_t device = daemon_request_int(r, "device", 0);
struct dm_config_tree *pvmeta;
char *pvid_old;
DEBUGLOG(s, "pv_gone: %s / %" PRIu64, pvid, device);
@ -783,15 +775,11 @@ static response pv_gone(lvmetad_state *s, request r)
DEBUGLOG(s, "pv_gone (updated): %s / %" PRIu64, pvid, device);
pvmeta = dm_hash_lookup(s->pvid_to_pvmeta, pvid);
pvid_old = dm_hash_lookup_binary(s->device_to_pvid, &device, sizeof(device));
dm_hash_remove_binary(s->device_to_pvid, &device, sizeof(device));
dm_hash_remove(s->pvid_to_pvmeta, pvid);
vg_remove_if_missing(s, dm_hash_lookup(s->pvid_to_vgid, pvid));
unlock_pvid_to_pvmeta(s);
if (pvid_old)
dm_free(pvid_old);
if (pvmeta) {
dm_config_destroy(pvmeta);
return daemon_reply_simple("OK", NULL);
@ -826,8 +814,8 @@ static response pv_found(lvmetad_state *s, request r)
struct dm_config_node *pvmeta = dm_config_find_node(r.cft->root, "pvmeta");
uint64_t device;
struct dm_config_tree *cft, *pvmeta_old_dev = NULL, *pvmeta_old_pvid = NULL;
char *old;
char *pvid_dup;
const char *old;
const char *pvid_dup;
int complete = 0, orphan = 0;
int64_t seqno = -1, seqno_old = -1;
@ -849,8 +837,6 @@ static response pv_found(lvmetad_state *s, request r)
DEBUGLOG(s, "pv_found %s, vgid = %s, device = %" PRIu64 ", old = %s", pvid, vgid, device, old);
dm_free(old);
if (!(cft = dm_config_create()) ||
!(cft->root = dm_config_clone_node(cft, pvmeta, 0))) {
unlock_pvid_to_pvmeta(s);
@ -859,7 +845,7 @@ static response pv_found(lvmetad_state *s, request r)
return reply_fail("out of memory");
}
if (!(pvid_dup = dm_strdup(pvid))) {
if (!(pvid_dup = dm_pool_strdup(dm_config_memory(cft), pvid))) {
unlock_pvid_to_pvmeta(s);
dm_config_destroy(cft);
return reply_fail("out of memory");
@ -870,7 +856,6 @@ static response pv_found(lvmetad_state *s, request r)
unlock_pvid_to_pvmeta(s);
dm_hash_remove(s->pvid_to_pvmeta, pvid);
dm_config_destroy(cft);
dm_free(pvid_dup);
return reply_fail("out of memory");
}
if (pvmeta_old_pvid)