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migration: add savevm_state_handler_remove()

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Create a function to abstract common logic needed when removing a
SaveStateEntry element from the savevm_state.handlers queue.

For now we just remove the element.  Soon it will involve additional
cleanup.

Signed-off-by: Scott Cheloha <cheloha@linux.vnet.ibm.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Scott Cheloha 2019-10-17 15:59:52 -05:00 committed by Juan Quintela
parent 619bd31d1f
commit bd5de61e7b
1 changed files with 7 additions and 2 deletions
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9
migration/savevm.c
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@ -725,6 +725,11 @@ static void savevm_state_handler_insert(SaveStateEntry *nse)
}
}
static void savevm_state_handler_remove(SaveStateEntry *se)
{
QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
}
/* TODO: Individual devices generally have very little idea about the rest
of the system, so instance_id should be removed/replaced.
Meanwhile pass -1 as instance_id if you do not already have a clearly
@ -777,7 +782,7 @@ void unregister_savevm(VMStateIf *obj, const char *idstr, void *opaque)
QTAILQ_FOREACH_SAFE(se, &savevm_state.handlers, entry, new_se) {
if (strcmp(se->idstr, id) == 0 && se->opaque == opaque) {
QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
savevm_state_handler_remove(se);
g_free(se->compat);
g_free(se);
}
@ -841,7 +846,7 @@ void vmstate_unregister(VMStateIf *obj, const VMStateDescription *vmsd,
QTAILQ_FOREACH_SAFE(se, &savevm_state.handlers, entry, new_se) {
if (se->vmsd == vmsd && se->opaque == opaque) {
QTAILQ_REMOVE(&savevm_state.handlers, se, entry);
savevm_state_handler_remove(se);
g_free(se->compat);
g_free(se);
}