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[PATCH v7 27/31] block_int-common.h: split function pointers in BdrvChil
From: |
Emanuele Giuseppe Esposito |
Subject: |
[PATCH v7 27/31] block_int-common.h: split function pointers in BdrvChildClass |
Date: |
Fri, 11 Feb 2022 09:51:49 -0500 |
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
---
include/block/block_int-common.h | 81 ++++++++++++++++++--------------
1 file changed, 47 insertions(+), 34 deletions(-)
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h
index f05ebb0da3..5a04c778e4 100644
--- a/include/block/block_int-common.h
+++ b/include/block/block_int-common.h
@@ -830,19 +830,16 @@ struct BdrvChildClass {
*/
bool parent_is_bds;
+ /*
+ * Global state (GS) API. These functions run under the BQL.
+ *
+ * See include/block/block-global-state.h for more information about
+ * the GS API.
+ */
void (*inherit_options)(BdrvChildRole role, bool parent_is_format,
int *child_flags, QDict *child_options,
int parent_flags, QDict *parent_options);
-
void (*change_media)(BdrvChild *child, bool load);
- void (*resize)(BdrvChild *child);
-
- /*
- * Returns a name that is supposedly more useful for human users than the
- * node name for identifying the node in question (in particular, a BB
- * name), or NULL if the parent can't provide a better name.
- */
- const char *(*get_name)(BdrvChild *child);
/*
* Returns a malloced string that describes the parent of the child for a
@@ -852,6 +849,47 @@ struct BdrvChildClass {
*/
char *(*get_parent_desc)(BdrvChild *child);
+ /*
+ * Notifies the parent that the child has been activated/inactivated (e.g.
+ * when migration is completing) and it can start/stop requesting
+ * permissions and doing I/O on it.
+ */
+ void (*activate)(BdrvChild *child, Error **errp);
+ int (*inactivate)(BdrvChild *child);
+
+ void (*attach)(BdrvChild *child);
+ void (*detach)(BdrvChild *child);
+
+ /*
+ * Notifies the parent that the filename of its child has changed (e.g.
+ * because the direct child was removed from the backing chain), so that it
+ * can update its reference.
+ */
+ int (*update_filename)(BdrvChild *child, BlockDriverState *new_base,
+ const char *filename, Error **errp);
+
+ bool (*can_set_aio_ctx)(BdrvChild *child, AioContext *ctx,
+ GSList **ignore, Error **errp);
+ void (*set_aio_ctx)(BdrvChild *child, AioContext *ctx, GSList **ignore);
+
+ AioContext *(*get_parent_aio_context)(BdrvChild *child);
+
+ /*
+ * I/O API functions. These functions are thread-safe.
+ *
+ * See include/block/block-io.h for more information about
+ * the I/O API.
+ */
+
+ void (*resize)(BdrvChild *child);
+
+ /*
+ * Returns a name that is supposedly more useful for human users than the
+ * node name for identifying the node in question (in particular, a BB
+ * name), or NULL if the parent can't provide a better name.
+ */
+ const char *(*get_name)(BdrvChild *child);
+
/*
* If this pair of functions is implemented, the parent doesn't issue new
* requests after returning from .drained_begin() until .drained_end() is
@@ -876,31 +914,6 @@ struct BdrvChildClass {
* activity on the child has stopped.
*/
bool (*drained_poll)(BdrvChild *child);
-
- /*
- * Notifies the parent that the child has been activated/inactivated (e.g.
- * when migration is completing) and it can start/stop requesting
- * permissions and doing I/O on it.
- */
- void (*activate)(BdrvChild *child, Error **errp);
- int (*inactivate)(BdrvChild *child);
-
- void (*attach)(BdrvChild *child);
- void (*detach)(BdrvChild *child);
-
- /*
- * Notifies the parent that the filename of its child has changed (e.g.
- * because the direct child was removed from the backing chain), so that it
- * can update its reference.
- */
- int (*update_filename)(BdrvChild *child, BlockDriverState *new_base,
- const char *filename, Error **errp);
-
- bool (*can_set_aio_ctx)(BdrvChild *child, AioContext *ctx,
- GSList **ignore, Error **errp);
- void (*set_aio_ctx)(BdrvChild *child, AioContext *ctx, GSList **ignore);
-
- AioContext *(*get_parent_aio_context)(BdrvChild *child);
};
extern const BdrvChildClass child_of_bds;
--
2.31.1
- [PATCH v7 11/31] include/block/block_int: split header into I/O and global state API, (continued)
- [PATCH v7 11/31] include/block/block_int: split header into I/O and global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 17/31] block.c: add assertions to static functions, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 22/31] include/block/snapshot: global state API + assertions, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 20/31] include/sysemu/blockdev.h: global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 18/31] include/block/blockjob.h: global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 13/31] IO_CODE and IO_OR_GS_CODE for block_int I/O API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 10/31] block.c: assertions to the block layer permissions API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 08/31] block/block-backend.c: assertions for block-backend, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 09/31] IO_CODE and IO_OR_GS_CODE for block-backend I/O API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 19/31] assertions for blockjob.h global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 27/31] block_int-common.h: split function pointers in BdrvChildClass,
Emanuele Giuseppe Esposito <=
- [PATCH v7 06/31] block/export/fuse.c: allow writable exports to take RESIZE permission, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 28/31] block_int-common.h: assertions in the callers of BdrvChildClass function pointers, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 05/31] IO_CODE and IO_OR_GS_CODE for block I/O API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 07/31] include/sysemu/block-backend: split header into I/O and global state (GS) API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 16/31] GS and IO CODE macros for blockjob_int.h, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 03/31] include/block/block: split header into I/O and global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 21/31] assertions for blockdev.h global state API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 24/31] block/coroutines: I/O and "I/O or GS" API, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 23/31] block/copy-before-write.h: global state API + assertions, Emanuele Giuseppe Esposito, 2022/02/11
- [PATCH v7 25/31] block_int-common.h: split function pointers in BlockDriver, Emanuele Giuseppe Esposito, 2022/02/11