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savevm: introduce is_active method

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Enable the creation of a method to tell migration if that section is
active and should be migrate.  We use it for blk-migration, that is
normally not active.  We don't create the method for RAM, as setups
without RAM are very strange O:-)

Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-06-27 10:59:15 +02:00
parent 9b5bfab05f
commit 6bd6878133
3 changed files with 22 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

15
savevm.c
View file

@ -1576,6 +1576,11 @@ int qemu_savevm_state_begin(QEMUFile *f,
if (!se->ops || !se->ops->save_live_state) {
continue;
}
if (se->ops && se->ops->is_active) {
if (!se->ops->is_active(se->opaque)) {
continue;
}
}
/* Section type */
qemu_put_byte(f, QEMU_VM_SECTION_START);
qemu_put_be32(f, se->section_id);
@ -1618,6 +1623,11 @@ int qemu_savevm_state_iterate(QEMUFile *f)
if (!se->ops || !se->ops->save_live_state) {
continue;
}
if (se->ops && se->ops->is_active) {
if (!se->ops->is_active(se->opaque)) {
continue;
}
}
if (qemu_file_rate_limit(f)) {
return 0;
}
@ -1658,6 +1668,11 @@ int qemu_savevm_state_complete(QEMUFile *f)
if (!se->ops || !se->ops->save_live_state) {
continue;
}
if (se->ops && se->ops->is_active) {
if (!se->ops->is_active(se->opaque)) {
continue;
}
}
trace_savevm_section_start();
/* Section type */
qemu_put_byte(f, QEMU_VM_SECTION_END);