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[PATCH v8 08/34] qcow2: Add dummy has_subclusters() function
From: |
Alberto Garcia |
Subject: |
[PATCH v8 08/34] qcow2: Add dummy has_subclusters() function |
Date: |
Wed, 10 Jun 2020 17:02:46 +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
- Re: [PATCH v8 32/34] qcow2: Allow preallocation and backing files if extended_l2 is set, (continued)
- [PATCH v8 29/34] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2020/06/10
- [PATCH v8 20/34] qcow2: Add subcluster support to calculate_l2_meta(), 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 16/34] qcow2: Add qcow2_cluster_is_allocated(), 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 14/34] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2020/06/10
- [PATCH v8 25/34] qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2(), Alberto Garcia, 2020/06/10
- [PATCH v8 10/34] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2020/06/10
- [PATCH v8 08/34] qcow2: Add dummy has_subclusters() function,
Alberto Garcia <=
- [PATCH v8 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2020/06/10
- [PATCH v8 17/34] qcow2: Add cluster type parameter to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, Alberto Garcia, 2020/06/10
- [PATCH v8 21/34] qcow2: Add subcluster support to qcow2_get_host_offset(), Alberto Garcia, 2020/06/10
- [PATCH v8 24/34] qcow2: Add subcluster support to check_refcounts_l2(), Alberto Garcia, 2020/06/10
- [PATCH v8 18/34] qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*, Alberto Garcia, 2020/06/10
- [PATCH v8 28/34] qcow2: Add subcluster support to qcow2_co_pwrite_zeroes(), Alberto Garcia, 2020/06/10
- [PATCH v8 34/34] iotests: Add tests for qcow2 images with extended L2 entries, Alberto Garcia, 2020/06/10
- [PATCH v8 19/34] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Alberto Garcia, 2020/06/10