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[RFC PATCH v3 06/27] qcow2: Add dummy has_subclusters() function
From: |
Alberto Garcia |
Subject: |
[RFC PATCH v3 06/27] qcow2: Add dummy has_subclusters() function |
Date: |
Sun, 22 Dec 2019 12:36:47 +0100 |
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 <address@hidden>
---
block/qcow2.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/qcow2.h b/block/qcow2.h
index 6823d3f68f..1db3fc5dbc 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -495,6 +495,12 @@ 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
- [RFC PATCH v3 01/27] qcow2: Add calculate_l2_meta(), (continued)
- [RFC PATCH v3 01/27] qcow2: Add calculate_l2_meta(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 24/27] qcow2: Restrict qcow2_co_pwrite_zeroes() to full clusters only, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 11/27] qcow2: Add QCow2SubclusterType and qcow2_get_subcluster_type(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 03/27] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 27/27] iotests: Add tests for qcow2 images with extended L2 entries, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 21/27] qcow2: Update L2 bitmap in qcow2_alloc_cluster_link_l2(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 13/27] qcow2: Handle QCOW2_SUBCLUSTER_UNALLOCATED_ALLOC, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 19/27] qcow2: Add subcluster support to expand_zero_clusters_in_l1(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 22/27] qcow2: Clear the L2 bitmap when allocating a compressed cluster, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 08/27] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 06/27] qcow2: Add dummy has_subclusters() function,
Alberto Garcia <=
- [RFC PATCH v3 02/27] qcow2: Split cluster_needs_cow() out of count_cow_clusters(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 23/27] qcow2: Add subcluster support to handle_alloc_space(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 14/27] qcow2: Add subcluster support to calculate_l2_meta(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 26/27] qcow2: Add subcluster support to qcow2_measure(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 09/27] qcow2: Add l2_entry_size(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 05/27] qcow2: Document the Extended L2 Entries feature, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 12/27] qcow2: Replace QCOW2_CLUSTER_* with QCOW2_SUBCLUSTER_*, Alberto Garcia, 2019/12/22
- [RFC PATCH v3 20/27] qcow2: Fix offset calculation in handle_dependencies(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 15/27] qcow2: Add subcluster support to qcow2_get_cluster_offset(), Alberto Garcia, 2019/12/22
- [RFC PATCH v3 04/27] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2019/12/22