| From 428eb7260718b69b1f3f421d03bce10b8785fc49 Mon Sep 17 00:00:00 2001 |
| From: Kevin Wolf <kwolf@redhat.com> |
| Date: Fri, 13 Mar 2020 12:34:39 +0000 |
| Subject: [PATCH 19/20] qapi: Add '@allow-write-only-overlay' feature for |
| 'blockdev-snapshot' |
| |
| RH-Author: Kevin Wolf <kwolf@redhat.com> |
| Message-id: <20200313123439.10548-14-kwolf@redhat.com> |
| Patchwork-id: 94290 |
| O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 13/13] qapi: Add '@allow-write-only-overlay' feature for 'blockdev-snapshot' |
| Bugzilla: 1790482 1805143 |
| RH-Acked-by: John Snow <jsnow@redhat.com> |
| RH-Acked-by: Daniel P. Berrange <berrange@redhat.com> |
| RH-Acked-by: Peter Krempa <pkrempa@redhat.com> |
| |
| From: Peter Krempa <pkrempa@redhat.com> |
| |
| Anounce that 'blockdev-snapshot' command's permissions allow changing |
| of the backing file if the 'consistent_read' permission is not required. |
| |
| This is useful for libvirt to allow late opening of the backing chain |
| during a blockdev-mirror. |
| |
| Signed-off-by: Peter Krempa <pkrempa@redhat.com> |
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |
| Message-Id: <20200310113831.27293-8-kwolf@redhat.com> |
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |
| (cherry picked from commit c6bdc312f30d5c7326aa2fdca3e0f98c15eb541a) |
| Signed-off-by: Kevin Wolf <kwolf@redhat.com> |
| Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com> |
| |
| qapi/block-core.json | 9 ++++++++- |
| 1 file changed, 8 insertions(+), 1 deletion(-) |
| |
| diff --git a/qapi/block-core.json b/qapi/block-core.json |
| index a1e85b0..a64ad81 100644 |
| |
| |
| @@ -1541,6 +1541,12 @@ |
| # |
| # For the arguments, see the documentation of BlockdevSnapshot. |
| # |
| +# Features: |
| +# @allow-write-only-overlay: If present, the check whether this operation is safe |
| +# was relaxed so that it can be used to change |
| +# backing file of a destination of a blockdev-mirror. |
| +# (since 5.0) |
| +# |
| # Since: 2.5 |
| # |
| # Example: |
| @@ -1561,7 +1567,8 @@ |
| # |
| ## |
| { 'command': 'blockdev-snapshot', |
| - 'data': 'BlockdevSnapshot' } |
| + 'data': 'BlockdevSnapshot', |
| + 'features': [ 'allow-write-only-overlay' ] } |
| |
| ## |
| # @change-backing-file: |
| -- |
| 1.8.3.1 |
| |