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-rw-r--r--migration/ram.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/migration/ram.c b/migration/ram.c
index 3532f64ecb..a2489a2699 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -414,6 +414,8 @@ struct PageSearchStatus {
unsigned long page;
/* Set once we wrap around */
bool complete_round;
+ /* Whether current page is explicitly requested by postcopy */
+ bool postcopy_requested;
};
typedef struct PageSearchStatus PageSearchStatus;
@@ -1289,7 +1291,7 @@ static int save_normal_page(RAMState *rs, RAMBlock *block, ram_addr_t offset,
offset | RAM_SAVE_FLAG_PAGE));
if (async) {
qemu_put_buffer_async(rs->f, buf, TARGET_PAGE_SIZE,
- migrate_release_ram() &
+ migrate_release_ram() &&
migration_in_postcopy());
} else {
qemu_put_buffer(rs->f, buf, TARGET_PAGE_SIZE);
@@ -1487,6 +1489,9 @@ retry:
*/
static bool find_dirty_block(RAMState *rs, PageSearchStatus *pss, bool *again)
{
+ /* This is not a postcopy requested page */
+ pss->postcopy_requested = false;
+
pss->page = migration_bitmap_find_dirty(rs, pss->block, pss->page);
if (pss->complete_round && pss->block == rs->last_seen_block &&
pss->page >= rs->last_page) {
@@ -1981,6 +1986,7 @@ static bool get_queued_page(RAMState *rs, PageSearchStatus *pss)
* really rare.
*/
pss->complete_round = false;
+ pss->postcopy_requested = true;
}
return !!block;
@@ -3639,7 +3645,7 @@ int ram_postcopy_incoming_init(MigrationIncomingState *mis)
*
* @f: QEMUFile where to send the data
*/
-static int ram_load_postcopy(QEMUFile *f)
+int ram_load_postcopy(QEMUFile *f)
{
int flags = 0, ret = 0;
bool place_needed = false;