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ram: introduce migration_bitmap_sync() 

Helper that we use each time that we need to syncronize the migration
bitmap with the other dirty bitmaps.

Signed-off-by: Juan Quintela <quintela@redhat.com>

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Juan Quintela 2012-07-20 10:52:51 +02:00
parent 652d7ec291
commit dd2df737ef
1 changed files with 8 additions and 2 deletions
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10
arch_init.c
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@ -356,6 +356,12 @@ static inline void migration_bitmap_set_dirty(MemoryRegion *mr, int length)
}
}
static void migration_bitmap_sync(void)
{
memory_global_sync_dirty_bitmap(get_system_memory());
}
/*
* ram_save_block: Writes a page of memory to the stream f
*
@ -613,7 +619,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
expected_downtime, migrate_max_downtime());
if (expected_downtime <= migrate_max_downtime()) {
memory_global_sync_dirty_bitmap(get_system_memory());
migration_bitmap_sync();
expected_downtime = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
s->expected_downtime = expected_downtime / 1000000; /* ns -> ms */
@ -624,7 +630,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
static int ram_save_complete(QEMUFile *f, void *opaque)
{
memory_global_sync_dirty_bitmap(get_system_memory());
migration_bitmap_sync();
/* try transferring iterative blocks of memory */