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authorDr. David Alan Gilbert <dgilbert@redhat.com>2018-06-05 17:25:45 +0100
committerDr. David Alan Gilbert <dgilbert@redhat.com>2018-06-15 14:40:56 +0100
commit343f632c70ab401b1343140c3b19c9fb99395323 (patch)
tree5a6163850c759e3aa46efc0e762e08d52ac5cc9f /migration
parentff0769a4adf52299504642882efba83ca1340a80 (diff)
migration: Poison ramblock loops in migration
The migration code should be using the RAMBLOCK_FOREACH_MIGRATABLE and qemu_ram_foreach_block_migratable not the all-block versions; poison them so that we can't accidentally use them. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20180605162545.80778-3-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration')
-rw-r--r--migration/migration.h3
-rw-r--r--migration/ram.c4
2 files changed, 6 insertions, 1 deletions
diff --git a/migration/migration.h b/migration/migration.h
index 5af57d616c..31d3ed12dc 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -284,4 +284,7 @@ void migrate_send_rp_resume_ack(MigrationIncomingState *mis, uint32_t value);
void dirty_bitmap_mig_before_vm_start(void);
void init_dirty_bitmap_incoming_migration(void);
+#define qemu_ram_foreach_block \
+ #warning "Use qemu_ram_foreach_block_migratable in migration code"
+
#endif
diff --git a/migration/ram.c b/migration/ram.c
index a7807cea84..e0d19305ee 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -159,9 +159,11 @@ out:
/* Should be holding either ram_list.mutex, or the RCU lock. */
#define RAMBLOCK_FOREACH_MIGRATABLE(block) \
- RAMBLOCK_FOREACH(block) \
+ INTERNAL_RAMBLOCK_FOREACH(block) \
if (!qemu_ram_is_migratable(block)) {} else
+#undef RAMBLOCK_FOREACH
+
static void ramblock_recv_map_init(void)
{
RAMBlock *rb;