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-rw-r--r--migration/migration.c7
-rw-r--r--migration/postcopy-ram.c23
2 files changed, 7 insertions, 23 deletions
diff --git a/migration/migration.c b/migration/migration.c
index 481a590f72..d365d82209 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1772,6 +1772,13 @@ bool migration_in_postcopy_after_devices(MigrationState *s)
return migration_in_postcopy() && s->postcopy_after_devices;
}
+bool migration_in_incoming_postcopy(void)
+{
+ PostcopyState ps = postcopy_state_get();
+
+ return ps >= POSTCOPY_INCOMING_DISCARD && ps < POSTCOPY_INCOMING_END;
+}
+
bool migration_is_idle(void)
{
MigrationState *s = current_migration;
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index a36402722b..b41a9fe2fd 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -27,7 +27,6 @@
#include "qemu/notify.h"
#include "qemu/rcu.h"
#include "sysemu/sysemu.h"
-#include "sysemu/balloon.h"
#include "qemu/error-report.h"
#include "trace.h"
#include "hw/boards.h"
@@ -521,20 +520,6 @@ int postcopy_ram_incoming_init(MigrationIncomingState *mis)
}
/*
- * Manage a single vote to the QEMU balloon inhibitor for all postcopy usage,
- * last caller wins.
- */
-static void postcopy_balloon_inhibit(bool state)
-{
- static bool cur_state = false;
-
- if (state != cur_state) {
- qemu_balloon_inhibit(state);
- cur_state = state;
- }
-}
-
-/*
* At the end of a migration where postcopy_ram_incoming_init was called.
*/
int postcopy_ram_incoming_cleanup(MigrationIncomingState *mis)
@@ -565,8 +550,6 @@ int postcopy_ram_incoming_cleanup(MigrationIncomingState *mis)
mis->have_fault_thread = false;
}
- postcopy_balloon_inhibit(false);
-
if (enable_mlock) {
if (os_mlock() < 0) {
error_report("mlock: %s", strerror(errno));
@@ -1160,12 +1143,6 @@ int postcopy_ram_incoming_setup(MigrationIncomingState *mis)
}
memset(mis->postcopy_tmp_zero_page, '\0', mis->largest_page_size);
- /*
- * Ballooning can mark pages as absent while we're postcopying
- * that would cause false userfaults.
- */
- postcopy_balloon_inhibit(true);
-
trace_postcopy_ram_enable_notify();
return 0;