diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 15 | ||||
| -rw-r--r-- | include/block/block_int.h | 20 | ||||
| -rw-r--r-- | include/block/blockjob.h | 8 | ||||
| -rw-r--r-- | include/qemu-common.h | 8 | ||||
| -rw-r--r-- | include/qemu/queue.h | 6 |
5 files changed, 40 insertions, 17 deletions
diff --git a/include/block/block.h b/include/block/block.h index 2dd66300ed..6d70eb42fe 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -203,12 +203,11 @@ BlockDriverState *bdrv_new(void); void bdrv_make_anon(BlockDriverState *bs); void bdrv_swap(BlockDriverState *bs_new, BlockDriverState *bs_old); void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top); +void bdrv_replace_in_backing_chain(BlockDriverState *old, + BlockDriverState *new); + int bdrv_parse_cache_flags(const char *mode, int *flags); int bdrv_parse_discard_flags(const char *mode, int *flags); -int bdrv_open_image(BlockDriverState **pbs, const char *filename, - QDict *options, const char *bdref_key, - BlockDriverState* parent, const BdrvChildRole *child_role, - bool allow_none, Error **errp); BdrvChild *bdrv_open_child(const char *filename, QDict *options, const char *bdref_key, BlockDriverState* parent, @@ -585,7 +584,13 @@ typedef enum { BLKDBG_EVENT_MAX, } BlkDebugEvent; -#define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt) +#define BLKDBG_EVENT(child, evt) \ + do { \ + if (child) { \ + bdrv_debug_event(child->bs, evt); \ + } \ + } while (0) + void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event); int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event, diff --git a/include/block/block_int.h b/include/block/block_int.h index 14ad4c334b..c0e65138b1 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -122,7 +122,6 @@ struct BlockDriver { int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num, const uint8_t *buf, int nb_sectors); void (*bdrv_close)(BlockDriverState *bs); - void (*bdrv_rebind)(BlockDriverState *bs); int (*bdrv_create)(const char *filename, QemuOpts *opts, Error **errp); int (*bdrv_set_key)(BlockDriverState *bs, const char *key); int (*bdrv_make_empty)(BlockDriverState *bs); @@ -339,6 +338,7 @@ struct BdrvChild { BlockDriverState *bs; const BdrvChildRole *role; QLIST_ENTRY(BdrvChild) next; + QLIST_ENTRY(BdrvChild) next_parent; }; /* @@ -378,9 +378,8 @@ struct BlockDriverState { QDict *full_open_options; char exact_filename[PATH_MAX]; - BlockDriverState *backing_hd; - BdrvChild *backing_child; - BlockDriverState *file; + BdrvChild *backing; + BdrvChild *file; NotifierList close_notifiers; @@ -446,6 +445,7 @@ struct BlockDriverState { * parent node of this node. */ BlockDriverState *inherits_from; QLIST_HEAD(, BdrvChild) children; + QLIST_HEAD(, BdrvChild) parents; QDict *options; BlockdevDetectZeroesOptions detect_zeroes; @@ -458,6 +458,11 @@ struct BlockDriverState { NotifierWithReturn write_threshold_notifier; }; +static inline BlockDriverState *backing_bs(BlockDriverState *bs) +{ + return bs->backing ? bs->backing->bs : NULL; +} + /* Essential block drivers which must always be statically linked into qemu, and * which therefore can be accessed without using bdrv_find_format() */ @@ -496,7 +501,7 @@ void bdrv_add_before_write_notifier(BlockDriverState *bs, * * May be called from .bdrv_detach_aio_context() to detach children from the * current #AioContext. This is only needed by block drivers that manage their - * own children. Both ->file and ->backing_hd are automatically handled and + * own children. Both ->file and ->backing are automatically handled and * block drivers should not call this function on them explicitly. */ void bdrv_detach_aio_context(BlockDriverState *bs); @@ -506,7 +511,7 @@ void bdrv_detach_aio_context(BlockDriverState *bs); * * May be called from .bdrv_attach_aio_context() to attach children to the new * #AioContext. This is only needed by block drivers that manage their own - * children. Both ->file and ->backing_hd are automatically handled and block + * children. Both ->file and ->backing are automatically handled and block * drivers should not call this function on them explicitly. */ void bdrv_attach_aio_context(BlockDriverState *bs, @@ -655,6 +660,8 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target, BlockCompletionFunc *cb, void *opaque, Error **errp); +void blk_set_bs(BlockBackend *blk, BlockDriverState *bs); + void blk_dev_change_media_cb(BlockBackend *blk, bool load); bool blk_dev_has_removable_media(BlockBackend *blk); void blk_dev_eject_request(BlockBackend *blk, bool force); @@ -663,5 +670,6 @@ bool blk_dev_is_medium_locked(BlockBackend *blk); void blk_dev_resize_cb(BlockBackend *blk); void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors); +bool bdrv_requests_pending(BlockDriverState *bs); #endif /* BLOCK_INT_H */ diff --git a/include/block/blockjob.h b/include/block/blockjob.h index dd9d5e6aad..289b13f0c0 100644 --- a/include/block/blockjob.h +++ b/include/block/blockjob.h @@ -65,6 +65,14 @@ struct BlockJob { BlockDriverState *bs; /** + * The ID of the block job. Currently the BlockBackend name of the BDS + * owning the job at the time when the job is started. + * + * TODO Decouple block job IDs from BlockBackend names + */ + char *id; + + /** * The coroutine that executes the job. If not NULL, it is * reentered when busy is false and the job is cancelled. */ diff --git a/include/qemu-common.h b/include/qemu-common.h index 0bd212b218..2f74540a87 100644 --- a/include/qemu-common.h +++ b/include/qemu-common.h @@ -246,6 +246,14 @@ int64_t qemu_strtosz_suffix_unit(const char *nptr, char **end, #define STR_OR_NULL(str) ((str) ? (str) : "null") /* id.c */ + +typedef enum IdSubSystems { + ID_QDEV, + ID_BLOCK, + ID_MAX /* last element, used as array size */ +} IdSubSystems; + +char *id_generate(IdSubSystems id); bool id_wellformed(const char *id); /* path.c */ diff --git a/include/qemu/queue.h b/include/qemu/queue.h index a8d3cb8e63..f781aa20a8 100644 --- a/include/qemu/queue.h +++ b/include/qemu/queue.h @@ -117,12 +117,6 @@ struct { \ } \ } while (/*CONSTCOND*/0) -#define QLIST_FIX_HEAD_PTR(head, field) do { \ - if ((head)->lh_first != NULL) { \ - (head)->lh_first->field.le_prev = &(head)->lh_first; \ - } \ -} while (/*CONSTCOND*/0) - #define QLIST_INSERT_AFTER(listelm, elm, field) do { \ if (((elm)->field.le_next = (listelm)->field.le_next) != NULL) \ (listelm)->field.le_next->field.le_prev = \ |