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[PATCH v6 16/32] qcow2: Add qcow2_cluster_is_allocated()
From: |
Alberto Garcia |
Subject: |
[PATCH v6 16/32] qcow2: Add qcow2_cluster_is_allocated() |
Date: |
Sun, 24 May 2020 16:51:36 +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 v6 00/32] Add subcluster allocation to qcow2, Alberto Garcia, 2020/05/24
- [PATCH v6 03/32] qcow2: Add calculate_l2_meta(), Alberto Garcia, 2020/05/24
- [PATCH v6 29/32] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2020/05/24
- [PATCH v6 14/32] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2020/05/24
- [PATCH v6 10/32] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2020/05/24
- [PATCH v6 05/32] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2020/05/24
- [PATCH v6 01/32] qcow2: Make Qcow2AioTask store the full host offset, Alberto Garcia, 2020/05/24
- [PATCH v6 06/32] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2020/05/24
- [PATCH v6 23/32] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2020/05/24
- [PATCH v6 12/32] qcow2: Add l2_entry_size(), Alberto Garcia, 2020/05/24
- [PATCH v6 16/32] qcow2: Add qcow2_cluster_is_allocated(),
Alberto Garcia <=
- [PATCH v6 09/32] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/05/24
- [PATCH v6 02/32] qcow2: Convert qcow2_get_cluster_offset() into qcow2_get_host_offset(), Alberto Garcia, 2020/05/24
- [PATCH v6 22/32] qcow2: Add subcluster support to zero_in_l2_slice(), Alberto Garcia, 2020/05/24
- [PATCH v6 17/32] qcow2: Add cluster type parameter to qcow2_get_host_offset(), Alberto Garcia, 2020/05/24
- [PATCH v6 24/32] qcow2: Add subcluster support to check_refcounts_l2(), Alberto Garcia, 2020/05/24
- [PATCH v6 26/32] qcow2: Clear the L2 bitmap when allocating a compressed cluster, Alberto Garcia, 2020/05/24
- [PATCH v6 28/32] qcow2: Add subcluster support to qcow2_co_pwrite_zeroes(), Alberto Garcia, 2020/05/24
- [PATCH v6 27/32] qcow2: Add subcluster support to handle_alloc_space(), Alberto Garcia, 2020/05/24
- [PATCH v6 19/32] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Alberto Garcia, 2020/05/24
- [PATCH v6 25/32] qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2(), Alberto Garcia, 2020/05/24