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migration: Add postcopy_preempt_active()

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Add the helper to show that postcopy preempt enabled, meanwhile active.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Peter Xu
2022-10-11 17:55:46 -04:00
committed by Juan Quintela
parent c13221b56f
commit 20123ee1de
1 changed files with 7 additions and 2 deletions
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9
migration/ram.c
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@@ -162,6 +162,11 @@ out:
return ret;
}
static bool postcopy_preempt_active(void)
{
return migrate_postcopy_preempt() && migration_in_postcopy();
}
bool ramblock_is_ignored(RAMBlock *block)
{
return !qemu_ram_is_migratable(block) ||
@@ -2433,7 +2438,7 @@ static void postcopy_preempt_choose_channel(RAMState *rs, PageSearchStatus *pss)
/* We need to make sure rs->f always points to the default channel elsewhere */
static void postcopy_preempt_reset_channel(RAMState *rs)
{
if (migrate_postcopy_preempt() && migration_in_postcopy()) {
if (postcopy_preempt_active()) {
rs->postcopy_channel = RAM_CHANNEL_PRECOPY;
rs->f = migrate_get_current()->to_dst_file;
trace_postcopy_preempt_reset_channel();
@@ -2471,7 +2476,7 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss)
return 0;
}
if (migrate_postcopy_preempt() && migration_in_postcopy()) {
if (postcopy_preempt_active()) {
postcopy_preempt_choose_channel(rs, pss);
}