diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 13 | ||||
| -rw-r--r-- | include/block/block_int.h | 14 | ||||
| -rw-r--r-- | include/block/dirty-bitmap.h | 24 |
3 files changed, 43 insertions, 8 deletions
diff --git a/include/block/block.h b/include/block/block.h index 6a758a76f8..e452988b66 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -187,6 +187,9 @@ typedef struct BDRVReopenState { BlockDriverState *bs; int flags; BlockdevDetectZeroesOptions detect_zeroes; + bool backing_missing; + bool replace_backing_bs; /* new_backing_bs is ignored if this is false */ + BlockDriverState *new_backing_bs; /* If NULL then detach the current bs */ uint64_t perm, shared_perm; QDict *options; QDict *explicit_options; @@ -299,8 +302,9 @@ BlockDriverState *bdrv_open(const char *filename, const char *reference, BlockDriverState *bdrv_new_open_driver(BlockDriver *drv, const char *node_name, int flags, Error **errp); BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue, - BlockDriverState *bs, QDict *options); -int bdrv_reopen_multiple(AioContext *ctx, BlockReopenQueue *bs_queue, Error **errp); + BlockDriverState *bs, QDict *options, + bool keep_old_opts); +int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp); int bdrv_reopen_set_read_only(BlockDriverState *bs, bool read_only, Error **errp); int bdrv_reopen_prepare(BDRVReopenState *reopen_state, @@ -353,6 +357,11 @@ int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base, BlockDriverState *bdrv_find_overlay(BlockDriverState *active, BlockDriverState *bs); BlockDriverState *bdrv_find_base(BlockDriverState *bs); +bool bdrv_is_backing_chain_frozen(BlockDriverState *bs, BlockDriverState *base, + Error **errp); +int bdrv_freeze_backing_chain(BlockDriverState *bs, BlockDriverState *base, + Error **errp); +void bdrv_unfreeze_backing_chain(BlockDriverState *bs, BlockDriverState *base); typedef struct BdrvCheckResult { diff --git a/include/block/block_int.h b/include/block/block_int.h index a23cabaddd..01e855a066 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -383,6 +383,14 @@ struct BlockDriver { /* List of options for creating images, terminated by name == NULL */ QemuOptsList *create_opts; + /* + * If this driver supports reopening images this contains a + * NULL-terminated list of the runtime options that can be + * modified. If an option in this list is unspecified during + * reopen then it _must_ be reset to its default value or return + * an error. + */ + const char *const *mutable_opts; /* * Returns 0 for completed check, -errno for internal errors. @@ -711,6 +719,12 @@ struct BdrvChild { uint64_t backup_perm; uint64_t backup_shared_perm; + /* + * This link is frozen: the child can neither be replaced nor + * detached from the parent. + */ + bool frozen; + QLIST_ENTRY(BdrvChild) next; QLIST_ENTRY(BdrvChild) next_parent; }; diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index 04a117fc81..8044ace63e 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -5,6 +5,16 @@ #include "qapi/qapi-types-block-core.h" #include "qemu/hbitmap.h" +typedef enum BitmapCheckFlags { + BDRV_BITMAP_BUSY = 1, + BDRV_BITMAP_RO = 2, + BDRV_BITMAP_INCONSISTENT = 4, +} BitmapCheckFlags; + +#define BDRV_BITMAP_DEFAULT (BDRV_BITMAP_BUSY | BDRV_BITMAP_RO | \ + BDRV_BITMAP_INCONSISTENT) +#define BDRV_BITMAP_ALLOW_RO (BDRV_BITMAP_BUSY | BDRV_BITMAP_INCONSISTENT) + BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs, uint32_t granularity, const char *name, @@ -24,6 +34,8 @@ BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs, void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap); BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name); +int bdrv_dirty_bitmap_check(const BdrvDirtyBitmap *bitmap, uint32_t flags, + Error **errp); void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); void bdrv_release_named_dirty_bitmaps(BlockDriverState *bs); void bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, @@ -36,7 +48,7 @@ BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs); uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs); uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); -bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap); +bool bdrv_dirty_bitmap_has_successor(BdrvDirtyBitmap *bitmap); const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap); DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap); @@ -66,9 +78,10 @@ void bdrv_dirty_bitmap_deserialize_ones(BdrvDirtyBitmap *bitmap, void bdrv_dirty_bitmap_deserialize_finish(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_set_readonly(BdrvDirtyBitmap *bitmap, bool value); -void bdrv_dirty_bitmap_set_persistance(BdrvDirtyBitmap *bitmap, +void bdrv_dirty_bitmap_set_persistence(BdrvDirtyBitmap *bitmap, bool persistent); -void bdrv_dirty_bitmap_set_qmp_locked(BdrvDirtyBitmap *bitmap, bool qmp_locked); +void bdrv_dirty_bitmap_set_inconsistent(BdrvDirtyBitmap *bitmap); +void bdrv_dirty_bitmap_set_busy(BdrvDirtyBitmap *bitmap, bool busy); void bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src, HBitmap **backup, Error **errp); void bdrv_dirty_bitmap_set_migration(BdrvDirtyBitmap *bitmap, bool migration); @@ -90,9 +103,8 @@ void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes); bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); bool bdrv_dirty_bitmap_get_autoload(const BdrvDirtyBitmap *bitmap); -bool bdrv_dirty_bitmap_get_persistance(BdrvDirtyBitmap *bitmap); -bool bdrv_dirty_bitmap_qmp_locked(BdrvDirtyBitmap *bitmap); -bool bdrv_dirty_bitmap_user_locked(BdrvDirtyBitmap *bitmap); +bool bdrv_dirty_bitmap_get_persistence(BdrvDirtyBitmap *bitmap); +bool bdrv_dirty_bitmap_inconsistent(const BdrvDirtyBitmap *bitmap); bool bdrv_has_changed_persistent_bitmaps(BlockDriverState *bs); BdrvDirtyBitmap *bdrv_dirty_bitmap_next(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); |