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authorRafael David Tinoco <rafael.tinoco@canonical.com>2016-10-24 15:35:03 +0000
committerMichael S. Tsirkin <mst@redhat.com>2016-11-15 17:20:37 +0200
commit0d34fbabc13891da41582b0823867dc5733fffef (patch)
tree9a73301710d2f8495da0dc9cf5af2f15daf097f7 /hw/virtio
parent2a083ffd2e37ef08769749a5c7cfc6ca65c9f8ea (diff)
vhost: migration blocker only if shared log is used
Commit 31190ed7 added a migration blocker in vhost_dev_init() to check if memfd would succeed. It is better if this blocker first checks if vhost backend requires shared log. This will avoid a situation where a blocker is added inappropriately (e.g. shared log allocation fails when vhost backend doesn't support it). Signed-off-by: Rafael David Tinoco <rafael.tinoco@canonical.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio')
-rw-r--r--hw/virtio/vhost.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index 131f1643b2..25bf67f3cc 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -1122,7 +1122,7 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque,
if (!(hdev->features & (0x1ULL << VHOST_F_LOG_ALL))) {
error_setg(&hdev->migration_blocker,
"Migration disabled: vhost lacks VHOST_F_LOG_ALL feature.");
- } else if (!qemu_memfd_check()) {
+ } else if (vhost_dev_log_is_shared(hdev) && !qemu_memfd_check()) {
error_setg(&hdev->migration_blocker,
"Migration disabled: failed to allocate shared memory");
}