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block: Add list of all BlockDriverStates

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We need this list so that bdrv_close_all() can keep track of which BDSs
are still open after having removed the BDSs from all of the BBs and
having released all monitor BDS references.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2016-01-29 16:36:11 +01:00
parent 64dff52019
commit 2c1d04e002
2 changed files with 9 additions and 0 deletions
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7
block.c
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@ -79,6 +79,9 @@ struct BdrvStates bdrv_states = QTAILQ_HEAD_INITIALIZER(bdrv_states);
static QTAILQ_HEAD(, BlockDriverState) graph_bdrv_states =
QTAILQ_HEAD_INITIALIZER(graph_bdrv_states);
static QTAILQ_HEAD(, BlockDriverState) all_bdrv_states =
QTAILQ_HEAD_INITIALIZER(all_bdrv_states);
static QLIST_HEAD(, BlockDriver) bdrv_drivers =
QLIST_HEAD_INITIALIZER(bdrv_drivers);
@ -267,6 +270,8 @@ BlockDriverState *bdrv_new(void)
bs->refcnt = 1;
bs->aio_context = qemu_get_aio_context();
QTAILQ_INSERT_TAIL(&all_bdrv_states, bs, bs_list);
return bs;
}
@ -2371,6 +2376,8 @@ static void bdrv_delete(BlockDriverState *bs)
/* remove from list, if necessary */
bdrv_make_anon(bs);
QTAILQ_REMOVE(&all_bdrv_states, bs, bs_list);
g_free(bs);
}

2
include/block/block_int.h
View File

@ -443,6 +443,8 @@ struct BlockDriverState {
QTAILQ_ENTRY(BlockDriverState) node_list;
/* element of the list of "drives" the guest sees */
QTAILQ_ENTRY(BlockDriverState) device_list;
/* element of the list of all BlockDriverStates (all_bdrv_states) */
QTAILQ_ENTRY(BlockDriverState) bs_list;
QLIST_HEAD(, BdrvDirtyBitmap) dirty_bitmaps;
int refcnt;