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-rw-r--r--include/block/block.h15
-rw-r--r--include/block/block_int.h20
-rw-r--r--include/block/blockjob.h8
-rw-r--r--include/qemu-common.h8
-rw-r--r--include/qemu/queue.h6
5 files changed, 40 insertions, 17 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 2dd6630..6d70eb4 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 14ad4c3..c0e6513 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 dd9d5e6..289b13f 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 0bd212b..2f74540 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 a8d3cb8..f781aa2 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 = \
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