From ff881d64d3f29825ab093eb2be183658226ccba3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Wed, 16 Dec 2020 16:06:15 -0500 Subject: [PATCH 14/14] qga: update schema for guest-get-disks 'dependents' field MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Marc-André Lureau Message-id: <20201216160615.324213-11-marcandre.lureau@redhat.com> Patchwork-id: 100480 O-Subject: [RHEL-8.4.0 qemu-kvm PATCH v2 10/10] qga: update schema for guest-get-disks 'dependents' field Bugzilla: 1859494 RH-Acked-by: Danilo de Paula RH-Acked-by: Sergio Lopez Pascual RH-Acked-by: Stefan Hajnoczi From: Michael Roth The recently-added 'guest-get-disk' command returns a list of GuestDiskInfo entries, which in turn have a 'dependents' field which lists devices these entries are dependent upon. Thus, 'dependencies' is a better name for this field. Address this by renaming the field accordingly. Additionally, 'dependents' is specified as non-optional, even though it's not implemented for w32. This is misleading, since it gives users the impression that a particular disk might not have dependencies, when in reality that information is simply not known to the guest agent. Address this by making 'dependents' an optional field, and only marking it as in-use when the facilities to obtain this information are available to the guest agent. Cc: Eric Blake Cc: Tomáš Golembiovský Cc: Marc-André Lureau Reviewed-by: Eric Blake Reviewed-by: Marc-André Lureau Signed-off-by: Michael Roth (cherry-picked from commit a8aa94b5f8427cc2924d8cdd417c8014db1c86c0) Signed-off-by: Marc-André Lureau Signed-off-by: Danilo C. L. de Paula --- qga/commands-posix.c | 10 ++++++---- qga/qapi-schema.json | 8 ++++---- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 9a170dee14c..c02373cdf7d 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1287,6 +1287,7 @@ static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) g_debug("failed to list entries in %s", deps_dir); return; } + disk->has_dependencies = true; while ((dep = g_dir_read_name(dp_deps)) != NULL) { g_autofree char *dep_dir = NULL; strList *dep_item = NULL; @@ -1299,8 +1300,8 @@ static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) g_debug(" adding dependent device: %s", dev_name); dep_item = g_new0(strList, 1); dep_item->value = dev_name; - dep_item->next = disk->dependents; - disk->dependents = dep_item; + dep_item->next = disk->dependencies; + disk->dependencies = dep_item; } } g_dir_close(dp_deps); @@ -1353,8 +1354,9 @@ static GuestDiskInfoList *get_disk_partitions( partition->name = dev_name; partition->partition = true; /* Add parent disk as dependent for easier tracking of hierarchy */ - partition->dependents = g_new0(strList, 1); - partition->dependents->value = g_strdup(disk_dev); + partition->dependencies = g_new0(strList, 1); + partition->dependencies->value = g_strdup(disk_dev); + partition->has_dependencies = true; item = g_new0(GuestDiskInfoList, 1); item->value = partition; diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 22df375c92f..4222cb92d34 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -857,9 +857,9 @@ # # @name: device node (Linux) or device UNC (Windows) # @partition: whether this is a partition or disk -# @dependents: list of dependent devices; e.g. for LVs of the LVM this will -# hold the list of PVs, for LUKS encrypted volume this will -# contain the disk where the volume is placed. (Linux) +# @dependencies: list of device dependencies; e.g. for LVs of the LVM this will +# hold the list of PVs, for LUKS encrypted volume this will +# contain the disk where the volume is placed. (Linux) # @address: disk address information (only for non-virtual devices) # @alias: optional alias assigned to the disk, on Linux this is a name assigned # by device mapper @@ -867,7 +867,7 @@ # Since 5.2 ## { 'struct': 'GuestDiskInfo', - 'data': {'name': 'str', 'partition': 'bool', 'dependents': ['str'], + 'data': {'name': 'str', 'partition': 'bool', '*dependencies': ['str'], '*address': 'GuestDiskAddress', '*alias': 'str'} } ## -- 2.27.0