Merge remote-tracking branch 'kwolf/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 29 May 2017 03:34:59 PM BST
# gpg:                using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* kwolf/tags/for-upstream:
  block/file-*: *_parse_filename() and colons
  block: Fix backing paths for filenames with colons
  block: Tweak error message related to qemu-img amend
  qemu-img: Fix leakage of options on error
  qemu-img: copy *key-secret opts when opening newly created files
  qemu-img: introduce --target-image-opts for 'convert' command
  qemu-img: fix --image-opts usage with dd command
  qemu-img: add support for --object with 'dd' command
  qemu-img: Fix documentation of convert
  qcow2: remove extra local_error variable
  mirror: Drop permissions on s->target on completion
  nvme: Add support for Controller Memory Buffers
  iotests: 147: Don't test inet6 if not available
  qemu-iotests: Test streaming with missing job ID
  stream: fix crash in stream_start() when block_job_create() fails

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

6 files changed, 16 insertions, 30 deletions

diff --git a/block/file-posix.c b/block/file-posix.c
index 4354d49642..de2d3a2e3c 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -381,12 +381,7 @@ static void raw_parse_flags(int bdrv_flags, int *open_flags)
 static void raw_parse_filename(const char *filename, QDict *options,
                                Error **errp)
 {
-    /* The filename does not have to be prefixed by the protocol name, since
-     * "file" is the default protocol; therefore, the return value of this
-     * function call can be ignored. */
-    strstart(filename, "file:", &filename);
-
-    qdict_put_str(options, "filename", filename);
+    bdrv_parse_filename_strip_prefix(filename, "file:", options);
 }
 
 static QemuOptsList raw_runtime_opts = {
@@ -2395,10 +2390,7 @@ static int check_hdev_writable(BDRVRawState *s)
 static void hdev_parse_filename(const char *filename, QDict *options,
                                 Error **errp)
 {
-    /* The prefix is optional, just as for "file". */
-    strstart(filename, "host_device:", &filename);
-
-    qdict_put_str(options, "filename", filename);
+    bdrv_parse_filename_strip_prefix(filename, "host_device:", options);
 }
 
 static bool hdev_is_sg(BlockDriverState *bs)
@@ -2697,10 +2689,7 @@ static BlockDriver bdrv_host_device = {
 static void cdrom_parse_filename(const char *filename, QDict *options,
                                  Error **errp)
 {
-    /* The prefix is optional, just as for "file". */
-    strstart(filename, "host_cdrom:", &filename);
-
-    qdict_put_str(options, "filename", filename);
+    bdrv_parse_filename_strip_prefix(filename, "host_cdrom:", options);
 }
 #endif
 
diff --git a/block/file-win32.c b/block/file-win32.c
index 8f14f0bdcd..ef2910b03f 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -276,12 +276,7 @@ static void raw_parse_flags(int flags, bool use_aio, int *access_flags,
 static void raw_parse_filename(const char *filename, QDict *options,
                                Error **errp)
 {
-    /* The filename does not have to be prefixed by the protocol name, since
-     * "file" is the default protocol; therefore, the return value of this
-     * function call can be ignored. */
-    strstart(filename, "file:", &filename);
-
-    qdict_put_str(options, "filename", filename);
+    bdrv_parse_filename_strip_prefix(filename, "file:", options);
 }
 
 static QemuOptsList raw_runtime_opts = {
@@ -671,10 +666,7 @@ static int hdev_probe_device(const char *filename)
 static void hdev_parse_filename(const char *filename, QDict *options,
                                 Error **errp)
 {
-    /* The prefix is optional, just as for "file". */
-    strstart(filename, "host_device:", &filename);
-
-    qdict_put_str(options, "filename", filename);
+    bdrv_parse_filename_strip_prefix(filename, "host_device:", options);
 }
 
 static int hdev_open(BlockDriverState *bs, QDict *options, int flags,
diff --git a/block/mirror.c b/block/mirror.c
index b9eb2a2ddb..a2a970301c 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -514,7 +514,12 @@ static void mirror_exit(BlockJob *job, void *opaque)
 
     /* Remove target parent that still uses BLK_PERM_WRITE/RESIZE before
      * inserting target_bs at s->to_replace, where we might not be able to get
-     * these permissions. */
+     * these permissions.
+     *
+     * Note that blk_unref() alone doesn't necessarily drop permissions because
+     * we might be running nested inside mirror_drain(), which takes an extra
+     * reference, so use an explicit blk_set_perm() first. */
+    blk_set_perm(s->target, 0, BLK_PERM_ALL, &error_abort);
     blk_unref(s->target);
     s->target = NULL;
 
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index 347d94b0d2..d779ea19cf 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -1797,7 +1797,8 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
             }
 
             if (offset_into_cluster(s, offset)) {
-                qcow2_signal_corruption(bs, true, -1, -1, "Data cluster offset "
+                qcow2_signal_corruption(bs, true, -1, -1,
+                                        "Cluster allocation offset "
                                         "%#" PRIx64 " unaligned (L2 offset: %#"
                                         PRIx64 ", L2 index: %#x)", offset,
                                         l2_offset, j);
diff --git a/block/qcow2.c b/block/qcow2.c
index a8d61f0981..b3ba5daa93 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3222,7 +3222,6 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
 
     if (s->refcount_bits != refcount_bits) {
         int refcount_order = ctz32(refcount_bits);
-        Error *local_error = NULL;
 
         if (new_version < 3 && refcount_bits != 16) {
             error_report("Different refcount widths than 16 bits require "
@@ -3234,9 +3233,9 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
         helper_cb_info.current_operation = QCOW2_CHANGING_REFCOUNT_ORDER;
         ret = qcow2_change_refcount_order(bs, refcount_order,
                                           &qcow2_amend_helper_cb,
-                                          &helper_cb_info, &local_error);
+                                          &helper_cb_info, &local_err);
         if (ret < 0) {
-            error_report_err(local_error);
+            error_report_err(local_err);
             return ret;
         }
     }
diff --git a/block/stream.c b/block/stream.c
index 0113710845..52d329f5c6 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -280,6 +280,6 @@ void stream_start(const char *job_id, BlockDriverState *bs,
 
 fail:
     if (orig_bs_flags != bdrv_get_flags(bs)) {
-        bdrv_reopen(bs, s->bs_flags, NULL);
+        bdrv_reopen(bs, orig_bs_flags, NULL);
     }
 }