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[PATCH v11 16/34] qcow2: Add qcow2_cluster_is_allocated()
From: |
Alberto Garcia |
Subject: |
[PATCH v11 16/34] qcow2: Add qcow2_cluster_is_allocated() |
Date: |
Fri, 10 Jul 2020 18:12:58 +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>
Reviewed-by: Max Reitz <mreitz@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
- [PATCH v11 26/34] qcow2: Clear the L2 bitmap when allocating a compressed cluster, (continued)
- [PATCH v11 26/34] qcow2: Clear the L2 bitmap when allocating a compressed cluster, Alberto Garcia, 2020/07/10
- [PATCH v11 14/34] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2020/07/10
- [PATCH v11 17/34] qcow2: Add cluster type parameter to qcow2_get_host_offset(), Alberto Garcia, 2020/07/10
- [PATCH v11 28/34] qcow2: Add subcluster support to qcow2_co_pwrite_zeroes(), Alberto Garcia, 2020/07/10
- [PATCH v11 30/34] qcow2: Add prealloc field to QCowL2Meta, Alberto Garcia, 2020/07/10
- [PATCH v11 27/34] qcow2: Add subcluster support to handle_alloc_space(), Alberto Garcia, 2020/07/10
- [PATCH v11 29/34] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2020/07/10
- [PATCH v11 34/34] iotests: Add tests for qcow2 images with extended L2 entries, Alberto Garcia, 2020/07/10
- [PATCH v11 23/34] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2020/07/10
- [PATCH v11 21/34] qcow2: Add subcluster support to qcow2_get_host_offset(), Alberto Garcia, 2020/07/10
- [PATCH v11 16/34] qcow2: Add qcow2_cluster_is_allocated(),
Alberto Garcia <=
- [PATCH v11 33/34] qcow2: Assert that expand_zero_clusters_in_l1() does not support subclusters, Alberto Garcia, 2020/07/10
- [PATCH v11 31/34] qcow2: Add the 'extended_l2' option and the QCOW2_INCOMPAT_EXTL2 bit, Alberto Garcia, 2020/07/10
- Re: [PATCH v11 00/34] Add subcluster allocation to qcow2, no-reply, 2020/07/10
- Re: [PATCH v11 00/34] Add subcluster allocation to qcow2, no-reply, 2020/07/10
- Re: [PATCH v11 00/34] Add subcluster allocation to qcow2, Max Reitz, 2020/07/14