From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38576) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bgyPy-0003IY-Fg for qemu-devel@nongnu.org; Mon, 05 Sep 2016 14:14:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bgyPt-00017k-PT for qemu-devel@nongnu.org; Mon, 05 Sep 2016 14:14:50 -0400 From: Kevin Wolf Date: Mon, 5 Sep 2016 20:13:48 +0200 Message-Id: <1473099234-10882-37-git-send-email-kwolf@redhat.com> In-Reply-To: <1473099234-10882-1-git-send-email-kwolf@redhat.com> References: <1473099234-10882-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PULL 36/42] block: Allow node name for 'qemu-io' HMP command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org When using a node name, create a temporary BlockBackend that is used to run the qemu-io command. Signed-off-by: Kevin Wolf Reviewed-by: Eric Blake --- hmp.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hmp.c b/hmp.c index a7dfe6f..ad33b44 100644 --- a/hmp.c +++ b/hmp.c @@ -1923,11 +1923,22 @@ void hmp_chardev_remove(Monitor *mon, const QDict *qdict) void hmp_qemu_io(Monitor *mon, const QDict *qdict) { BlockBackend *blk; + BlockBackend *local_blk = NULL; const char* device = qdict_get_str(qdict, "device"); const char* command = qdict_get_str(qdict, "command"); Error *err = NULL; blk = blk_by_name(device); + if (!blk) { + BlockDriverState *bs = bdrv_lookup_bs(NULL, device, &err); + if (bs) { + blk = local_blk = blk_new(); + blk_insert_bs(blk, bs); + } else { + goto fail; + } + } + if (blk) { AioContext *aio_context = blk_get_aio_context(blk); aio_context_acquire(aio_context); @@ -1940,6 +1951,8 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict) "Device '%s' not found", device); } +fail: + blk_unref(local_blk); hmp_handle_error(mon, &err); } -- 1.8.3.1