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[PULL 08/34] qcow2: Add dummy has_subclusters() function
From: |
Max Reitz |
Subject: |
[PULL 08/34] qcow2: Add dummy has_subclusters() function |
Date: |
Tue, 25 Aug 2020 10:32:45 +0200 |
From: Alberto Garcia <berto@igalia.com>
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>
Message-Id:
<905526221083581a1b7057bca1585487661c5c13.1594396418.git.berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.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)
{
--
2.26.2
- [PULL 03/34] qcow2: Add calculate_l2_meta(), (continued)
- [PULL 03/34] qcow2: Add calculate_l2_meta(), Max Reitz, 2020/08/25
- [PULL 04/34] qcow2: Split cluster_needs_cow() out of count_cow_clusters(), Max Reitz, 2020/08/25
- [PULL 05/34] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Max Reitz, 2020/08/25
- [PULL 06/34] qcow2: Add get_l2_entry() and set_l2_entry(), Max Reitz, 2020/08/25
- [PULL 07/34] qcow2: Document the Extended L2 Entries feature, Max Reitz, 2020/08/25
- [PULL 09/34] qcow2: Add subcluster-related fields to BDRVQcow2State, Max Reitz, 2020/08/25
- [PULL 10/34] qcow2: Add offset_to_sc_index(), Max Reitz, 2020/08/25
- [PULL 11/34] qcow2: Add offset_into_subcluster() and size_to_subclusters(), Max Reitz, 2020/08/25
- [PULL 12/34] qcow2: Add l2_entry_size(), Max Reitz, 2020/08/25
- [PULL 13/34] qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap(), Max Reitz, 2020/08/25
- [PULL 08/34] qcow2: Add dummy has_subclusters() function,
Max Reitz <=
- [PULL 15/34] qcow2: Add qcow2_get_subcluster_range_type(), Max Reitz, 2020/08/25
- [PULL 14/34] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Max Reitz, 2020/08/25
- [PULL 16/34] qcow2: Add qcow2_cluster_is_allocated(), Max Reitz, 2020/08/25
- [PULL 18/34] qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*, Max Reitz, 2020/08/25
- [PULL 19/34] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Max Reitz, 2020/08/25
- [PULL 22/34] qcow2: Add subcluster support to zero_in_l2_slice(), Max Reitz, 2020/08/25
- [PULL 21/34] qcow2: Add subcluster support to qcow2_get_host_offset(), Max Reitz, 2020/08/25
- [PULL 23/34] qcow2: Add subcluster support to discard_in_l2_slice(), Max Reitz, 2020/08/25
- [PULL 20/34] qcow2: Add subcluster support to calculate_l2_meta(), Max Reitz, 2020/08/25
- [PULL 27/34] qcow2: Add subcluster support to handle_alloc_space(), Max Reitz, 2020/08/25