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[PATCH v8 16/34] qcow2: Add qcow2_cluster_is_allocated()
From: |
Alberto Garcia |
Subject: |
[PATCH v8 16/34] qcow2: Add qcow2_cluster_is_allocated() |
Date: |
Wed, 10 Jun 2020 17:02:54 +0200 |
This helper function tells us if a cluster is allocated (that is,
there is an associated host offset for it).
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
block/qcow2.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/qcow2.h b/block/qcow2.h
index 3aec6f452a..ea647c8bb5 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -780,6 +780,12 @@ QCow2SubclusterType
qcow2_get_subcluster_type(BlockDriverState *bs,
}
}
+static inline bool qcow2_cluster_is_allocated(QCow2ClusterType type)
+{
+ return (type == QCOW2_CLUSTER_COMPRESSED || type == QCOW2_CLUSTER_NORMAL ||
+ type == QCOW2_CLUSTER_ZERO_ALLOC);
+}
+
/* Check whether refcounts are eager or lazy */
static inline bool qcow2_need_accurate_refcounts(BDRVQcow2State *s)
{
--
2.20.1
- Re: [PATCH v8 33/34] qcow2: Assert that expand_zero_clusters_in_l1() does not support subclusters, (continued)
- [PATCH v8 30/34] qcow2: Add prealloc field to QCowL2Meta, Alberto Garcia, 2020/06/10
- [PATCH v8 27/34] qcow2: Add subcluster support to handle_alloc_space(), Alberto Garcia, 2020/06/10
- [PATCH v8 32/34] qcow2: Allow preallocation and backing files if extended_l2 is set, Alberto Garcia, 2020/06/10
- [PATCH v8 29/34] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2020/06/10
- [PATCH v8 20/34] qcow2: Add subcluster support to calculate_l2_meta(), Alberto Garcia, 2020/06/10
- [PATCH v8 07/34] qcow2: Document the Extended L2 Entries feature, Alberto Garcia, 2020/06/10
- [PATCH v8 02/34] qcow2: Convert qcow2_get_cluster_offset() into qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 16/34] qcow2: Add qcow2_cluster_is_allocated(),
Alberto Garcia <=
- [PATCH v8 23/34] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2020/06/10
- [PATCH v8 14/34] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2020/06/10
- [PATCH v8 25/34] qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2(), Alberto Garcia, 2020/06/10
- [PATCH v8 10/34] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2020/06/10
- [PATCH v8 08/34] qcow2: Add dummy has_subclusters() function, Alberto Garcia, 2020/06/10
- [PATCH v8 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2020/06/10
- [PATCH v8 17/34] qcow2: Add cluster type parameter to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/06/10
- [PATCH v8 21/34] qcow2: Add subcluster support to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 24/34] qcow2: Add subcluster support to check_refcounts_l2(), Alberto Garcia, 2020/06/10