Merge tag 'pull-nbd-2023-09-07-v2' of https://repo.or.cz/qemu/ericb into staging

NBD patches for 2023-09-07

- Andrey Drobyshev - fix regression in iotest 197 under -nbd
- Stefan Hajnoczi - allow coroutine read and write context to split
across threads
- Philippe Mathieu-Daudé - remove a VLA allocation
- Denis V. Lunev - fix regression in iotest 233 with qemu-nbd -v --fork

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* tag 'pull-nbd-2023-09-07-v2' of https://repo.or.cz/qemu/ericb:
  qemu-nbd: document -v behavior in respect to --fork in man
  qemu-nbd: Restore "qemu-nbd -v --fork" output
  qemu-nbd: invent nbd_client_release_pipe() helper
  qemu-nbd: put saddr into into struct NbdClientOpts
  qemu-nbd: move srcpath into struct NbdClientOpts
  qemu-nbd: define struct NbdClientOpts when HAVE_NBD_DEVICE is not defined
  qemu-nbd: improve error message for dup2 error
  util/iov: Avoid dynamic stack allocation
  io: follow coroutine AioContext in qio_channel_yield()
  io: check there are no qio_channel_yield() coroutines during ->finalize()
  nbd: drop unused nbd_start_negotiate() aio_context argument
  nbd: drop unused nbd_receive_negotiate() aio_context argument
  qemu-iotests/197: use more generic commands for formats other than qcow2

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

1 files changed, 4 insertions, 10 deletions

diff --git a/nbd/client.c b/nbd/client.c
index 479208d..bd7e200 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -877,8 +877,7 @@ static int nbd_list_meta_contexts(QIOChannel *ioc,
  * Returns: negative errno: failure talking to server
  *          non-negative: enum NBDMode describing server abilities
  */
-static int nbd_start_negotiate(AioContext *aio_context, QIOChannel *ioc,
-                               QCryptoTLSCreds *tlscreds,
+static int nbd_start_negotiate(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
                                const char *hostname, QIOChannel **outioc,
                                bool structured_reply, bool *zeroes,
                                Error **errp)
@@ -946,10 +945,6 @@ static int nbd_start_negotiate(AioContext *aio_context, QIOChannel *ioc,
                     return -EINVAL;
                 }
                 ioc = *outioc;
-                if (aio_context) {
-                    qio_channel_set_blocking(ioc, false, NULL);
-                    qio_channel_attach_aio_context(ioc, aio_context);
-                }
             } else {
                 error_setg(errp, "Server does not support STARTTLS");
                 return -EINVAL;
@@ -1014,8 +1009,7 @@ static int nbd_negotiate_finish_oldstyle(QIOChannel *ioc, NBDExportInfo *info,
  * Returns: negative errno: failure talking to server
  *          0: server is connected
  */
-int nbd_receive_negotiate(AioContext *aio_context, QIOChannel *ioc,
-                          QCryptoTLSCreds *tlscreds,
+int nbd_receive_negotiate(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
                           const char *hostname, QIOChannel **outioc,
                           NBDExportInfo *info, Error **errp)
 {
@@ -1027,7 +1021,7 @@ int nbd_receive_negotiate(AioContext *aio_context, QIOChannel *ioc,
     assert(info->name && strlen(info->name) <= NBD_MAX_STRING_SIZE);
     trace_nbd_receive_negotiate_name(info->name);
 
-    result = nbd_start_negotiate(aio_context, ioc, tlscreds, hostname, outioc,
+    result = nbd_start_negotiate(ioc, tlscreds, hostname, outioc,
                                  info->structured_reply, &zeroes, errp);
     if (result < 0) {
         return result;
@@ -1150,7 +1144,7 @@ int nbd_receive_export_list(QIOChannel *ioc, QCryptoTLSCreds *tlscreds,
     QIOChannel *sioc = NULL;
 
     *info = NULL;
-    result = nbd_start_negotiate(NULL, ioc, tlscreds, hostname, &sioc, true,
+    result = nbd_start_negotiate(ioc, tlscreds, hostname, &sioc, true,
                                  NULL, errp);
     if (tlscreds && sioc) {
         ioc = sioc;