cpr: relax blockdev migration blockers

Some blockdevs block migration because they do not support sharing across
hosts and/or do not support dirty bitmaps.  These prohibitions do not apply
if the old and new qemu processes do not run concurrently, and if new qemu
starts on the same host as old, which is the case for cpr.  Narrow the scope
of these blockers so they only apply to normal mode.  They will not block
cpr modes when they are added in subsequent patches.

No functional change until a new mode is added.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <1698263069-406971-4-git-send-email-steven.sistare@oracle.com>

diff --git a/block/parallels.c b/block/parallels.c
index 1d695ce7fbf529b4b7e668ecc62528fabfbd7581..6318dd02e78ed23fdf21223a2e0fc12da33f59ff 100644 (file)
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -1369,7 +1369,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
                bdrv_get_device_or_node_name(bs));
     bdrv_graph_rdunlock_main_loop();
 
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail;
     }

diff --git a/block/qcow.c b/block/qcow.c
index fdd4c8394891cfab4807f76bf003e9ffb4a43920..eab68e387ca3b7a5e3067c47ab5b72a24674ef4d 100644 (file)
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -307,7 +307,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
                bdrv_get_device_or_node_name(bs));
     bdrv_graph_rdunlock_main_loop();
 
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail;
     }

diff --git a/block/vdi.c b/block/vdi.c
index fd7e3653832f890776e03a845a157fede10655b3..c647d72895657acd3ce07bac941459236d14a32d 100644 (file)
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -498,7 +498,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags,
                bdrv_get_device_or_node_name(bs));
     bdrv_graph_rdunlock_main_loop();
 
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail_free_bmap;
     }

diff --git a/block/vhdx.c b/block/vhdx.c
index e37f8c0926371379ca2d3ff8299a230c9641f341..a9d08742f9d641d0b9b741bc7fc5fd5af40c201e 100644 (file)
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1096,7 +1096,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags,
     error_setg(&s->migration_blocker, "The vhdx format used by node '%s' "
                "does not support live migration",
                bdrv_get_device_or_node_name(bs));
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail;
     }

diff --git a/block/vmdk.c b/block/vmdk.c
index 1335d39e16efbbf0ee85c3dc7b73a2acbb6dacf7..85864b804523243854e69806907ae60141d5d943 100644 (file)
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1386,7 +1386,7 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
     error_setg(&s->migration_blocker, "The vmdk format used by node '%s' "
                "does not support live migration",
                bdrv_get_device_or_node_name(bs));
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail;
     }

diff --git a/block/vpc.c b/block/vpc.c
index c30cf8689ab91ce43e2508a16f708305974b1fe1..aa1a48ae0ebaeef99d7beb04e55a92b68171c46c 100644 (file)
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -452,7 +452,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
                bdrv_get_device_or_node_name(bs));
     bdrv_graph_rdunlock_main_loop();
 
-    ret = migrate_add_blocker(&s->migration_blocker, errp);
+    ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
     if (ret < 0) {
         goto fail;
     }

diff --git a/block/vvfat.c b/block/vvfat.c
index 266e036dcd80633a8ccbda0506993a508eab42db..9d050ba3aea08eeac3d284e7d1e41545ff5b9f9f 100644 (file)
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1268,7 +1268,7 @@ static int vvfat_open(BlockDriverState *bs, QDict *options, int flags,
                    "The vvfat (rw) format used by node '%s' "
                    "does not support live migration",
                    bdrv_get_device_or_node_name(bs));
-        ret = migrate_add_blocker(&s->migration_blocker, errp);
+        ret = migrate_add_blocker_normal(&s->migration_blocker, errp);
         if (ret < 0) {
             goto fail;
         }