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[PATCH v7 16/32] qcow2: Add qcow2_cluster_is_allocated()
From: |
Alberto Garcia |
Subject: |
[PATCH v7 16/32] qcow2: Add qcow2_cluster_is_allocated() |
Date: |
Mon, 25 May 2020 20:08:41 +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 <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
block/qcow2.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/qcow2.h b/block/qcow2.h
index 27dbcbc502..ba7614e406 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 v7 15/32] qcow2: Add qcow2_get_subcluster_range_type(), (continued)
- [PATCH v7 15/32] qcow2: Add qcow2_get_subcluster_range_type(), Alberto Garcia, 2020/05/25
- [PATCH v7 06/32] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2020/05/25
- [PATCH v7 09/32] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/05/25
- [PATCH v7 23/32] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2020/05/25
- [PATCH v7 01/32] qcow2: Make Qcow2AioTask store the full host offset, Alberto Garcia, 2020/05/25
- [PATCH v7 22/32] qcow2: Add subcluster support to zero_in_l2_slice(), Alberto Garcia, 2020/05/25
- [PATCH v7 13/32] qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap(), Alberto Garcia, 2020/05/25
- [PATCH v7 16/32] qcow2: Add qcow2_cluster_is_allocated(),
Alberto Garcia <=
- [PATCH v7 04/32] qcow2: Split cluster_needs_cow() out of count_cow_clusters(), Alberto Garcia, 2020/05/25
- [PATCH v7 14/32] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2020/05/25
- [PATCH v7 08/32] qcow2: Add dummy has_subclusters() function, Alberto Garcia, 2020/05/25
- [PATCH v7 10/32] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2020/05/25
- [PATCH v7 11/32] qcow2: Add offset_into_subcluster() and size_to_subclusters(), Alberto Garcia, 2020/05/25
- [PATCH v7 24/32] qcow2: Add subcluster support to check_refcounts_l2(), Alberto Garcia, 2020/05/25
- [PATCH v7 27/32] qcow2: Add subcluster support to handle_alloc_space(), Alberto Garcia, 2020/05/25