aboutsummaryrefslogtreecommitdiff
path: root/block.c
diff options
context:
space:
mode:
Diffstat (limited to 'block.c')
-rw-r--r--block.c100
1 files changed, 0 insertions, 100 deletions
diff --git a/block.c b/block.c
index e046a313c5..6212aae534 100644
--- a/block.c
+++ b/block.c
@@ -3357,111 +3357,11 @@ bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag)
return false;
}
-/**************************************************************/
-/* handling of snapshots */
-
-int bdrv_can_snapshot(BlockDriverState *bs)
-{
- BlockDriver *drv = bs->drv;
- if (!drv || !bdrv_is_inserted(bs) || bdrv_is_read_only(bs)) {
- return 0;
- }
-
- if (!drv->bdrv_snapshot_create) {
- if (bs->file != NULL) {
- return bdrv_can_snapshot(bs->file);
- }
- return 0;
- }
-
- return 1;
-}
-
int bdrv_is_snapshot(BlockDriverState *bs)
{
return !!(bs->open_flags & BDRV_O_SNAPSHOT);
}
-int bdrv_snapshot_create(BlockDriverState *bs,
- QEMUSnapshotInfo *sn_info)
-{
- BlockDriver *drv = bs->drv;
- if (!drv)
- return -ENOMEDIUM;
- if (drv->bdrv_snapshot_create)
- return drv->bdrv_snapshot_create(bs, sn_info);
- if (bs->file)
- return bdrv_snapshot_create(bs->file, sn_info);
- return -ENOTSUP;
-}
-
-int bdrv_snapshot_goto(BlockDriverState *bs,
- const char *snapshot_id)
-{
- BlockDriver *drv = bs->drv;
- int ret, open_ret;
-
- if (!drv)
- return -ENOMEDIUM;
- if (drv->bdrv_snapshot_goto)
- return drv->bdrv_snapshot_goto(bs, snapshot_id);
-
- if (bs->file) {
- drv->bdrv_close(bs);
- ret = bdrv_snapshot_goto(bs->file, snapshot_id);
- open_ret = drv->bdrv_open(bs, NULL, bs->open_flags);
- if (open_ret < 0) {
- bdrv_delete(bs->file);
- bs->drv = NULL;
- return open_ret;
- }
- return ret;
- }
-
- return -ENOTSUP;
-}
-
-int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id)
-{
- BlockDriver *drv = bs->drv;
- if (!drv)
- return -ENOMEDIUM;
- if (drv->bdrv_snapshot_delete)
- return drv->bdrv_snapshot_delete(bs, snapshot_id);
- if (bs->file)
- return bdrv_snapshot_delete(bs->file, snapshot_id);
- return -ENOTSUP;
-}
-
-int bdrv_snapshot_list(BlockDriverState *bs,
- QEMUSnapshotInfo **psn_info)
-{
- BlockDriver *drv = bs->drv;
- if (!drv)
- return -ENOMEDIUM;
- if (drv->bdrv_snapshot_list)
- return drv->bdrv_snapshot_list(bs, psn_info);
- if (bs->file)
- return bdrv_snapshot_list(bs->file, psn_info);
- return -ENOTSUP;
-}
-
-int bdrv_snapshot_load_tmp(BlockDriverState *bs,
- const char *snapshot_name)
-{
- BlockDriver *drv = bs->drv;
- if (!drv) {
- return -ENOMEDIUM;
- }
- if (!bs->read_only) {
- return -EINVAL;
- }
- if (drv->bdrv_snapshot_load_tmp) {
- return drv->bdrv_snapshot_load_tmp(bs, snapshot_name);
- }
- return -ENOTSUP;
-}
-
/* backing_file can either be relative, or absolute, or a protocol. If it is
* relative, it must be relative to the chain. So, passing in bs->filename
* from a BDS as backing_file should not be done, as that may be relative to