diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/snapshot.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/block/snapshot.c b/block/snapshot.c index eae4730fc6..75d0b968f6 100644 --- a/block/snapshot.c +++ b/block/snapshot.c @@ -443,3 +443,29 @@ int bdrv_all_find_snapshot(const char *name, BlockDriverState **first_bad_bs) *first_bad_bs = bs; return err; } + +int bdrv_all_create_snapshot(QEMUSnapshotInfo *sn, + BlockDriverState *vm_state_bs, + uint64_t vm_state_size, + BlockDriverState **first_bad_bs) +{ + int err = 0; + BlockDriverState *bs = NULL; + + while (err == 0 && (bs = bdrv_next(bs))) { + AioContext *ctx = bdrv_get_aio_context(bs); + + aio_context_acquire(ctx); + if (bs == vm_state_bs) { + sn->vm_state_size = vm_state_size; + err = bdrv_snapshot_create(bs, sn); + } else if (bdrv_can_snapshot(bs)) { + sn->vm_state_size = 0; + err = bdrv_snapshot_create(bs, sn); + } + aio_context_release(ctx); + } + + *first_bad_bs = bs; + return err; +} |