[Qemu-devel] [PATCH 2/2] virtio-9p: Remove migration blockers.

[Boris Sukholitko <boriss@gmail.com>]

Signed-off-by: Boris Sukholitko <boriss@gmail.com>
---
 hw/9pfs/virtio-9p.c | 24 ------------------------
 hw/9pfs/virtio-9p.h |  2 --
 2 files changed, 26 deletions(-)

diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 5861a5b..2bf3c0a 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -332,19 +332,6 @@ static int put_fid(V9fsPDU *pdu, V9fsFidState *fidp)
      * Don't free the fid if it is in reclaim list
      */
     if (!fidp->ref && fidp->clunked) {
-        if (fidp->fid == pdu->s->root_fid) {
-            /*
-             * if the clunked fid is root fid then we
-             * have unmounted the fs on the client side.
-             * delete the migration blocker. Ideally, this
-             * should be hooked to transport close notification
-             */
-            if (pdu->s->migration_blocker) {
-                migrate_del_blocker(pdu->s->migration_blocker);
-                error_free(pdu->s->migration_blocker);
-                pdu->s->migration_blocker = NULL;
-            }
-        }
         return free_fid(pdu, fidp);
     }
     return 0;
@@ -979,17 +966,6 @@ static void v9fs_attach(void *opaque)
     err += offset;
     trace_v9fs_attach_return(pdu->tag, pdu->id,
                              qid.type, qid.version, qid.path);
-    /*
-     * disable migration if we haven't done already.
-     * attach could get called multiple times for the same export.
-     */
-    if (!s->migration_blocker) {
-        s->root_fid = fid;
-        error_setg(&s->migration_blocker,
-                   "Migration is disabled when VirtFS export path '%s' is mounted in the guest using mount_tag '%s'",
-                   s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
-        migrate_add_blocker(s->migration_blocker);
-    }
 out:
     put_fid(pdu, fidp);
 out_nofid:
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index 2c3603a..23f8eba 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -222,8 +222,6 @@ typedef struct V9fsState
      * on rename.
      */
     CoRwlock rename_lock;
-    int32_t root_fid;
-    Error *migration_blocker;
     V9fsConf fsconf;
 } V9fsState;
 
-- 
2.0.2