diff options
author | Markus Armbruster <armbru@redhat.com> | 2014-10-07 13:59:25 +0200 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2014-10-20 14:03:50 +0200 |
commit | a7f53e26a6f5bd64cda617cbcca118601d9a01d9 (patch) | |
tree | 126055939716b056e9cf975eae1118fdbe2526ee /include/block | |
parent | 6007cdd448b6729e82530e85579e5089ddc58eba (diff) |
block: Lift device model API into BlockBackend
Move device model attachment / detachment and the BlockDevOps device
model callbacks and their wrappers from BlockDriverState to
BlockBackend.
Wrapper calls in block.c change from
bdrv_dev_FOO_cb(bs, ...)
to
if (bs->blk) {
bdrv_dev_FOO_cb(bs->blk, ...);
}
No change, because both bdrv_dev_change_media_cb() and
bdrv_dev_resize_cb() do nothing when no device model is attached, and
a device model can be attached only when bs->blk.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
-rw-r--r-- | include/block/block.h | 45 | ||||
-rw-r--r-- | include/block/block_int.h | 12 |
2 files changed, 7 insertions, 50 deletions
diff --git a/include/block/block.h b/include/block/block.h index 9a490c221c..c9ec0ab386 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -48,41 +48,6 @@ typedef struct BlockFragInfo { uint64_t compressed_clusters; } BlockFragInfo; -/* Callbacks for block device models */ -typedef struct BlockDevOps { - /* - * Runs when virtual media changed (monitor commands eject, change) - * Argument load is true on load and false on eject. - * Beware: doesn't run when a host device's physical media - * changes. Sure would be useful if it did. - * Device models with removable media must implement this callback. - */ - void (*change_media_cb)(void *opaque, bool load); - /* - * Runs when an eject request is issued from the monitor, the tray - * is closed, and the medium is locked. - * Device models that do not implement is_medium_locked will not need - * this callback. Device models that can lock the medium or tray might - * want to implement the callback and unlock the tray when "force" is - * true, even if they do not support eject requests. - */ - void (*eject_request_cb)(void *opaque, bool force); - /* - * Is the virtual tray open? - * Device models implement this only when the device has a tray. - */ - bool (*is_tray_open)(void *opaque); - /* - * Is the virtual medium locked into the device? - * Device models implement this only when device has such a lock. - */ - bool (*is_medium_locked)(void *opaque); - /* - * Runs when the size changed (e.g. monitor command block_resize) - */ - void (*resize_cb)(void *opaque); -} BlockDevOps; - typedef enum { BDRV_REQ_COPY_ON_READ = 0x1, BDRV_REQ_ZERO_WRITE = 0x2, @@ -230,16 +195,6 @@ void bdrv_reopen_commit(BDRVReopenState *reopen_state); void bdrv_reopen_abort(BDRVReopenState *reopen_state); void bdrv_close(BlockDriverState *bs); void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify); -int bdrv_attach_dev(BlockDriverState *bs, void *dev); -void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev); -void bdrv_detach_dev(BlockDriverState *bs, void *dev); -void *bdrv_get_attached_dev(BlockDriverState *bs); -void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops, - void *opaque); -void bdrv_dev_eject_request(BlockDriverState *bs, bool force); -bool bdrv_dev_has_removable_media(BlockDriverState *bs); -bool bdrv_dev_is_tray_open(BlockDriverState *bs); -bool bdrv_dev_is_medium_locked(BlockDriverState *bs); int bdrv_read(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, int nb_sectors); int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num, diff --git a/include/block/block_int.h b/include/block/block_int.h index e8e33a8b43..8898c6c51b 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -326,11 +326,6 @@ struct BlockDriverState { BlockBackend *blk; /* owning backend, if any */ - void *dev; /* attached device model, if any */ - /* TODO change to DeviceState when all users are qdevified */ - const BlockDevOps *dev_ops; - void *dev_opaque; - AioContext *aio_context; /* event loop used for fd handlers, timers, etc */ /* long-running tasks intended to always use the same AioContext as this * BDS may register themselves in this list to be notified of changes @@ -587,4 +582,11 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target, BlockCompletionFunc *cb, void *opaque, Error **errp); +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); +bool blk_dev_is_tray_open(BlockBackend *blk); +bool blk_dev_is_medium_locked(BlockBackend *blk); +void blk_dev_resize_cb(BlockBackend *blk); + #endif /* BLOCK_INT_H */ |