[Qemu-devel] [PATCH v3 for-2.7 4/8] block: Drop blk_new_with_bs()

[Max Reitz]

Its only caller is blk_new_open(), so we can just inline it there.

The bdrv_new_root() call is dropped in the process because we can just
let bdrv_open() create the BDS.

Signed-off-by: Max Reitz <mre...@redhat.com>
Reviewed-by: Kevin Wolf <kw...@redhat.com>
---
 block/block-backend.c | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

diff --git a/block/block-backend.c b/block/block-backend.c
index 66b8bad..4e8e8ab 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -175,26 +175,6 @@ BlockBackend *blk_new(Error **errp)
 }
 
 /*
- * Create a new BlockBackend with a new BlockDriverState attached.
- * Otherwise just like blk_new(), which see.
- */
-BlockBackend *blk_new_with_bs(Error **errp)
-{
-    BlockBackend *blk;
-    BlockDriverState *bs;
-
-    blk = blk_new(errp);
-    if (!blk) {
-        return NULL;
-    }
-
-    bs = bdrv_new_root();
-    blk->root = bdrv_root_attach_child(bs, "root", &child_root);
-    blk->root->opaque = blk;
-    return blk;
-}
-
-/*
  * Calls blk_new_with_bs() and then calls bdrv_open() on the BlockDriverState.
  *
  * Just as with bdrv_open(), after having called this function the reference to
@@ -210,21 +190,25 @@ BlockBackend *blk_new_open(const char *filename, const 
char *reference,
                            QDict *options, int flags, Error **errp)
 {
     BlockBackend *blk;
+    BlockDriverState *bs;
     int ret;
 
-    blk = blk_new_with_bs(errp);
+    blk = blk_new(errp);
     if (!blk) {
         QDECREF(options);
         return NULL;
     }
 
-    ret = bdrv_open(&blk->root->bs, filename, reference, options, flags, errp);
+    bs = NULL;
+    ret = bdrv_open(&bs, filename, reference, options, flags, errp);
     if (ret < 0) {
         blk_unref(blk);
         return NULL;
     }
 
     blk_set_enable_write_cache(blk, true);
+    blk->root = bdrv_root_attach_child(bs, "root", &child_root);
+    blk->root->opaque = blk;
 
     return blk;
 }
-- 
2.8.0