nbd: don't change socket block during negotiate
The caller might handle non-blocking using coroutine. Leave the choice to the caller to use a blocking or non-blocking negotiate. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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@ -348,6 +348,7 @@ int nbd_client_session_init(NbdClientSession *client,
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int ret;
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/* NBD handshake */
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qemu_set_block(sock);
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ret = nbd_receive_negotiate(sock, client->export_name,
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&client->nbdflags, &client->size,
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&client->blocksize);
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2
nbd.c
2
nbd.c
@ -443,7 +443,6 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
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TRACE("Receiving negotiation.");
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qemu_set_block(csock);
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rc = -EINVAL;
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if (read_sync(csock, buf, 8) != 8) {
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@ -558,7 +557,6 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
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rc = 0;
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fail:
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qemu_set_nonblock(csock);
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return rc;
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}
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