diff options
Diffstat (limited to 'include/block/block_int.h')
| -rw-r--r-- | include/block/block_int.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h index 47dfafa462..a1f8488bca 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -364,6 +364,17 @@ typedef struct BdrvAioNotifier { struct BdrvChildRole { void (*inherit_options)(int *child_flags, QDict *child_options, int parent_flags, QDict *parent_options); + + /* + * If this pair of functions is implemented, the parent doesn't issue new + * requests after returning from .drained_begin() until .drained_end() is + * called. + * + * Note that this can be nested. If drained_begin() was called twice, new + * I/O is allowed only after drained_end() was called twice, too. + */ + void (*drained_begin)(BdrvChild *child); + void (*drained_end)(BdrvChild *child); }; extern const BdrvChildRole child_file; @@ -526,8 +537,6 @@ int get_tmp_filename(char *filename, int size); BlockDriver *bdrv_probe_all(const uint8_t *buf, int buf_size, const char *filename); -bool bdrv_start_throttled_reqs(BlockDriverState *bs); - /** * bdrv_add_before_write_notifier: @@ -710,9 +719,6 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs, const BdrvChildRole *child_role); void bdrv_root_unref_child(BdrvChild *child); -void bdrv_no_throttling_begin(BlockDriverState *bs); -void bdrv_no_throttling_end(BlockDriverState *bs); - void blk_dev_change_media_cb(BlockBackend *blk, bool load); bool blk_dev_has_removable_media(BlockBackend *blk); bool blk_dev_has_tray(BlockBackend *blk); |