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[PATCH v11 08/34] qcow2: Add dummy has_subclusters() function
From: |
Alberto Garcia |
Subject: |
[PATCH v11 08/34] qcow2: Add dummy has_subclusters() function |
Date: |
Fri, 10 Jul 2020 18:12:50 +0200 |
This function will be used by the qcow2 code to check if an image has
subclusters or not.
At the moment this simply returns false. Once all patches needed for
subcluster support are ready then QEMU will be able to create and
read images with subclusters and this function will return the actual
value.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
block/qcow2.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/qcow2.h b/block/qcow2.h
index eecbadc4cb..2064dd3d85 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -510,6 +510,12 @@ typedef enum QCow2MetadataOverlap {
#define INV_OFFSET (-1ULL)
+static inline bool has_subclusters(BDRVQcow2State *s)
+{
+ /* FIXME: Return false until this feature is complete */
+ return false;
+}
+
static inline uint64_t get_l2_entry(BDRVQcow2State *s, uint64_t *l2_slice,
int idx)
{
--
2.20.1
- [PATCH v11 00/34] Add subcluster allocation to qcow2, Alberto Garcia, 2020/07/10
- [PATCH v11 02/34] qcow2: Convert qcow2_get_cluster_offset() into qcow2_get_host_offset(), Alberto Garcia, 2020/07/10
- [PATCH v11 03/34] qcow2: Add calculate_l2_meta(), Alberto Garcia, 2020/07/10
- [PATCH v11 01/34] qcow2: Make Qcow2AioTask store the full host offset, Alberto Garcia, 2020/07/10
- [PATCH v11 08/34] qcow2: Add dummy has_subclusters() function,
Alberto Garcia <=
- [PATCH v11 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2020/07/10
- [PATCH v11 06/34] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2020/07/10
- [PATCH v11 07/34] qcow2: Document the Extended L2 Entries feature, Alberto Garcia, 2020/07/10
- [PATCH v11 13/34] qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap(), Alberto Garcia, 2020/07/10
- [PATCH v11 04/34] qcow2: Split cluster_needs_cow() out of count_cow_clusters(), Alberto Garcia, 2020/07/10
- [PATCH v11 15/34] qcow2: Add qcow2_get_subcluster_range_type(), Alberto Garcia, 2020/07/10
- [PATCH v11 19/34] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Alberto Garcia, 2020/07/10
- [PATCH v11 20/34] qcow2: Add subcluster support to calculate_l2_meta(), Alberto Garcia, 2020/07/10
- [PATCH v11 18/34] qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*, Alberto Garcia, 2020/07/10
- [PATCH v11 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/07/10