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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
- [PATCH v8 00/34] Add subcluster allocation to qcow2, Alberto Garcia, 2020/06/10
- [PATCH v8 13/34] qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap(), Alberto Garcia, 2020/06/10
- [PATCH v8 11/34] qcow2: Add offset_into_subcluster() and size_to_subclusters(), Alberto Garcia, 2020/06/10
- [PATCH v8 06/34] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2020/06/10
- [PATCH v8 15/34] qcow2: Add qcow2_get_subcluster_range_type(), Alberto Garcia, 2020/06/10
- [PATCH v8 03/34] qcow2: Add calculate_l2_meta(), Alberto Garcia, 2020/06/10
- [PATCH v8 22/34] qcow2: Add subcluster support to zero_in_l2_slice(), Alberto Garcia, 2020/06/10
- [PATCH v8 01/34] qcow2: Make Qcow2AioTask store the full host offset, Alberto Garcia, 2020/06/10
- [PATCH v8 12/34] qcow2: Add l2_entry_size(), Alberto Garcia, 2020/06/10
- [PATCH v8 04/34] qcow2: Split cluster_needs_cow() out of count_cow_clusters(), Alberto Garcia, 2020/06/10
- [PATCH v8 16/34] qcow2: Add qcow2_cluster_is_allocated(),
Alberto Garcia <=
- [PATCH v8 08/34] qcow2: Add dummy has_subclusters() function, Alberto Garcia, 2020/06/10
- [PATCH v8 10/34] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2020/06/10
- [PATCH v8 19/34] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, 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 29/34] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2020/06/10
- [PATCH v8 23/34] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2020/06/10
- [PATCH v8 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, 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