From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:33665) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SwqgP-0006Vf-TD for qemu-devel@nongnu.org; Thu, 02 Aug 2012 04:23:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SwqgK-0002T7-5y for qemu-devel@nongnu.org; Thu, 02 Aug 2012 04:23:01 -0400 Received: from mail-wi0-f181.google.com ([209.85.212.181]:35335) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SwqgJ-0002Sb-VA for qemu-devel@nongnu.org; Thu, 02 Aug 2012 04:22:56 -0400 Received: by wibhm2 with SMTP id hm2so3702747wib.10 for ; Thu, 02 Aug 2012 01:22:54 -0700 (PDT) From: "=?UTF-8?q?Beno=C3=AEt=20Canet?=" Date: Thu, 2 Aug 2012 10:22:46 +0200 Message-Id: <1343895769-21255-1-git-send-email-benoit@irqsave.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH V6 0/3] Show backing file depth in HMP and QMP List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= , lcapitulino@redhat.com, pbonzini@redhat.com, eblake@redhat.com, stefanha@linux.vnet.ibm.com In some setups many backing files and snapshot are chained. This lead to the formation of huge trees of snapshots all depending on a common ancestor. Hence if something bad happen to this common ancestor all the snapshot of the tree will be broken. This patch add an easy way for the user to monitor backing file depth and take the good decision (streaming). in v2: lcapitulino: -Fix typo in qapi-schema.json -rename *file_ancestors_count to *backing_file_ancestor_count in v3: kwolf: qapi-schema.json backing_file_ancestor_count field not optional Add a (since 1.2) comment keep display in HMP optional in v4: eblake: rename backing_file.ancestors.count to backing.file.depth in qapi-schema.json use - instead of _ Fix json docstring in v5: eblake: ditch completely the word ancestor in comment Add the corresponding patch to qmp-commands.hx in v6: lcapitulino: replace - by _ for consistency squash two patches Benoît Canet (3): block: create bdrv_get_backing_file_depth() block: Use bdrv_get_backing_file_depth() hmp: show the backing file depth block.c | 16 ++++++++++++++++ block.h | 1 + hmp.c | 2 ++ qapi-schema.json | 9 ++++++--- qmp-commands.hx | 2 ++ 5 files changed, 27 insertions(+), 3 deletions(-) -- 1.7.9.5