[libvirt] [PATCH 4/4] snapshot: drop dead parameters
Eric Blake
eblake at redhat.com
Sat Oct 8 00:05:57 UTC 2011
The previous optimizations lead to some follow-on cleanups.
* src/conf/domain_conf.c (virDomainSnapshotForEachChild)
(virDomainSnapshotForEachDescendant): Drop dead parameter.
(virDomainSnapshotActOnDescendant)
(virDomainSnapshotObjListNumFrom)
(virDomainSnapshotObjListGetNamesFrom): Update callers.
* src/qemu/qemu_driver.c (qemuDomainSnapshotNumChildren)
(qemuDomainSnapshotListChildrenNames, qemuDomainSnapshotDelete):
Likewise.
* src/conf/domain_conf.h: Update prototypes.
---
src/conf/domain_conf.c | 20 ++++++++------------
src/conf/domain_conf.h | 11 ++---------
src/qemu/qemu_driver.c | 12 +++++-------
3 files changed, 15 insertions(+), 28 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index e77257a..d52a79f 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -12192,7 +12192,6 @@ cleanup:
}
int virDomainSnapshotObjListGetNamesFrom(virDomainSnapshotObjPtr snapshot,
- virDomainSnapshotObjListPtr snapshots,
char **const names, int maxnames,
unsigned int flags)
{
@@ -12202,11 +12201,11 @@ int virDomainSnapshotObjListGetNamesFrom(virDomainSnapshotObjPtr snapshot,
data.flags = flags & ~VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS;
if (flags & VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS)
- virDomainSnapshotForEachDescendant(snapshots, snapshot,
+ virDomainSnapshotForEachDescendant(snapshot,
virDomainSnapshotObjListCopyNames,
&data);
else
- virDomainSnapshotForEachChild(snapshots, snapshot,
+ virDomainSnapshotForEachChild(snapshot,
virDomainSnapshotObjListCopyNames, &data);
if (data.oom) {
@@ -12263,7 +12262,6 @@ int virDomainSnapshotObjListNum(virDomainSnapshotObjListPtr snapshots,
int
virDomainSnapshotObjListNumFrom(virDomainSnapshotObjPtr snapshot,
- virDomainSnapshotObjListPtr snapshots,
unsigned int flags)
{
struct virDomainSnapshotNumData data = { 0, 0 };
@@ -12271,11 +12269,11 @@ virDomainSnapshotObjListNumFrom(virDomainSnapshotObjPtr snapshot,
data.flags = flags & ~VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS;
if (flags & VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS)
- virDomainSnapshotForEachDescendant(snapshots, snapshot,
+ virDomainSnapshotForEachDescendant(snapshot,
virDomainSnapshotObjListCount,
&data);
else if (data.flags)
- virDomainSnapshotForEachChild(snapshots, snapshot,
+ virDomainSnapshotForEachChild(snapshot,
virDomainSnapshotObjListCount, &data);
else
data.count = snapshot->nchildren;
@@ -12300,8 +12298,7 @@ void virDomainSnapshotObjListRemove(virDomainSnapshotObjListPtr snapshots,
* other entries in snapshots. Return the number of children
* visited. No particular ordering is guaranteed. */
int
-virDomainSnapshotForEachChild(virDomainSnapshotObjListPtr snapshots ATTRIBUTE_UNUSED,
- virDomainSnapshotObjPtr snapshot,
+virDomainSnapshotForEachChild(virDomainSnapshotObjPtr snapshot,
virHashIterator iter,
void *data)
{
@@ -12331,15 +12328,14 @@ virDomainSnapshotActOnDescendant(void *payload,
curr->number++;
(curr->iter)(payload, name, curr->data);
- virDomainSnapshotForEachDescendant(NULL, obj, curr->iter, curr->data);
+ virDomainSnapshotForEachDescendant(obj, curr->iter, curr->data);
}
/* Run iter(data) on all descendants of snapshot, while ignoring all
* other entries in snapshots. Return the number of descendants
* visited. No particular ordering is guaranteed. */
int
-virDomainSnapshotForEachDescendant(virDomainSnapshotObjListPtr snapshots ATTRIBUTE_UNUSED,
- virDomainSnapshotObjPtr snapshot,
+virDomainSnapshotForEachDescendant(virDomainSnapshotObjPtr snapshot,
virHashIterator iter,
void *data)
{
@@ -12348,7 +12344,7 @@ virDomainSnapshotForEachDescendant(virDomainSnapshotObjListPtr snapshots ATTRIBU
act.number = 0;
act.iter = iter;
act.data = data;
- virDomainSnapshotForEachChild(NULL, snapshot,
+ virDomainSnapshotForEachChild(snapshot,
virDomainSnapshotActOnDescendant, &act);
return act.number;
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 9b3870a..ce93215 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1464,9 +1464,6 @@ struct _virDomainSnapshotObj {
virDomainSnapshotObjPtr sibling; /* NULL if last child of parent */
size_t nchildren;
virDomainSnapshotObjPtr first_child; /* NULL if no children */
-
- /* Internal use only */
- int mark; /* Used in identifying descendents. */
};
typedef struct _virDomainSnapshotObjList virDomainSnapshotObjList;
@@ -1508,22 +1505,18 @@ int virDomainSnapshotObjListGetNames(virDomainSnapshotObjListPtr snapshots,
int virDomainSnapshotObjListNum(virDomainSnapshotObjListPtr snapshots,
unsigned int flags);
int virDomainSnapshotObjListGetNamesFrom(virDomainSnapshotObjPtr snapshot,
- virDomainSnapshotObjListPtr snapshots,
char **const names, int maxnames,
unsigned int flags);
int virDomainSnapshotObjListNumFrom(virDomainSnapshotObjPtr snapshot,
- virDomainSnapshotObjListPtr snapshots,
unsigned int flags);
virDomainSnapshotObjPtr virDomainSnapshotFindByName(const virDomainSnapshotObjListPtr snapshots,
const char *name);
void virDomainSnapshotObjListRemove(virDomainSnapshotObjListPtr snapshots,
virDomainSnapshotObjPtr snapshot);
-int virDomainSnapshotForEachChild(virDomainSnapshotObjListPtr snapshots,
- virDomainSnapshotObjPtr snapshot,
+int virDomainSnapshotForEachChild(virDomainSnapshotObjPtr snapshot,
virHashIterator iter,
void *data);
-int virDomainSnapshotForEachDescendant(virDomainSnapshotObjListPtr snapshots,
- virDomainSnapshotObjPtr snapshot,
+int virDomainSnapshotForEachDescendant(virDomainSnapshotObjPtr snapshot,
virHashIterator iter,
void *data);
int virDomainSnapshotUpdateRelations(virDomainSnapshotObjListPtr snapshots);
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 501a3fc..7a134e3 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -9502,8 +9502,7 @@ qemuDomainSnapshotListChildrenNames(virDomainSnapshotPtr snapshot,
goto cleanup;
}
- n = virDomainSnapshotObjListGetNamesFrom(snap, &vm->snapshots,
- names, nameslen, flags);
+ n = virDomainSnapshotObjListGetNamesFrom(snap, names, nameslen, flags);
cleanup:
if (vm)
@@ -9546,7 +9545,7 @@ qemuDomainSnapshotNumChildren(virDomainSnapshotPtr snapshot,
* VIR_DOMAIN_SNAPSHOT_LIST_METADATA makes no difference to our
* answer. */
- n = virDomainSnapshotObjListNumFrom(snap, &vm->snapshots, flags);
+ n = virDomainSnapshotObjListNumFrom(snap, flags);
cleanup:
if (vm)
@@ -10163,7 +10162,7 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
snap->def->state == VIR_DOMAIN_DISK_SNAPSHOT)
external++;
if (flags & VIR_DOMAIN_SNAPSHOT_DELETE_CHILDREN)
- virDomainSnapshotForEachDescendant(&vm->snapshots, snap,
+ virDomainSnapshotForEachDescendant(snap,
qemuDomainSnapshotCountExternal,
&external);
if (external) {
@@ -10184,8 +10183,7 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
rem.metadata_only = metadata_only;
rem.err = 0;
rem.current = false;
- virDomainSnapshotForEachDescendant(&vm->snapshots,
- snap,
+ virDomainSnapshotForEachDescendant(snap,
qemuDomainSnapshotDiscardAll,
&rem);
if (rem.err < 0)
@@ -10210,7 +10208,7 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
rep.vm = vm;
rep.err = 0;
rep.last = NULL;
- virDomainSnapshotForEachChild(&vm->snapshots, snap,
+ virDomainSnapshotForEachChild(snap,
qemuDomainSnapshotReparentChildren,
&rep);
if (rep.err < 0)
--
1.7.4.4
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