From cf3a74c94f3da92fdf8d45047756f0e43657be1a Mon Sep 17 00:00:00 2001 From: Daniel P. Berrangé Date: Thu, 4 Feb 2021 12:48:26 +0000 Subject: block: add ability to specify list of blockdevs during snapshot When running snapshot operations, there are various rules for which blockdevs are included/excluded. While this provides reasonable default behaviour, there are scenarios that are not well handled by the default logic. Some of the conditions do not have a single correct answer. Thus there needs to be a way for the mgmt app to provide an explicit list of blockdevs to perform snapshots across. This can be achieved by passing a list of node names that should be used. Reviewed-by: Eric Blake Signed-off-by: Daniel P. Berrangé Message-Id: <20210204124834.774401-5-berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert --- include/block/snapshot.h | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/block/snapshot.h b/include/block/snapshot.h index 5cb2b696ad..2569a903f2 100644 --- a/include/block/snapshot.h +++ b/include/block/snapshot.h @@ -25,7 +25,7 @@ #ifndef SNAPSHOT_H #define SNAPSHOT_H - +#include "qapi/qapi-builtin-types.h" #define SNAPSHOT_OPT_BASE "snapshot." #define SNAPSHOT_OPT_ID "snapshot.id" @@ -77,15 +77,25 @@ int bdrv_snapshot_load_tmp_by_id_or_name(BlockDriverState *bs, * These functions will properly handle dataplane (take aio_context_acquire * when appropriate for appropriate block drivers */ -bool bdrv_all_can_snapshot(Error **errp); -int bdrv_all_delete_snapshot(const char *name, Error **errp); -int bdrv_all_goto_snapshot(const char *name, Error **errp); -int bdrv_all_find_snapshot(const char *name, Error **errp); +bool bdrv_all_can_snapshot(bool has_devices, strList *devices, + Error **errp); +int bdrv_all_delete_snapshot(const char *name, + bool has_devices, strList *devices, + Error **errp); +int bdrv_all_goto_snapshot(const char *name, + bool has_devices, strList *devices, + Error **errp); +int bdrv_all_find_snapshot(const char *name, + bool has_devices, strList *devices, + Error **errp); int bdrv_all_create_snapshot(QEMUSnapshotInfo *sn, BlockDriverState *vm_state_bs, uint64_t vm_state_size, + bool has_devices, + strList *devices, Error **errp); -BlockDriverState *bdrv_all_find_vmstate_bs(Error **errp); +BlockDriverState *bdrv_all_find_vmstate_bs(bool has_devices, strList *devices, + Error **errp); #endif -- cgit v1.2.3-55-g7522