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[RFC PATCH 06/23] qcow2: Add dummy has_subclusters() function
From: |
Alberto Garcia |
Subject: |
[RFC PATCH 06/23] qcow2: Add dummy has_subclusters() function |
Date: |
Tue, 15 Oct 2019 18:23:17 +0300 |
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 0b68c55c01..6d6fc57f41 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -485,6 +485,12 @@ 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 00/23] Add subcluster allocation to qcow2, Alberto Garcia, 2019/10/15
- [RFC PATCH 10/23] qcow2: Update get/set_l2_entry() and add get/set_l2_bitmap(), Alberto Garcia, 2019/10/15
- [RFC PATCH 06/23] qcow2: Add dummy has_subclusters() function,
Alberto Garcia <=
- [RFC PATCH 12/23] qcow2: Handle QCOW2_CLUSTER_UNALLOCATED_SUBCLUSTER, Alberto Garcia, 2019/10/15
- [RFC PATCH 16/23] qcow2: Add subcluster support to discard_in_l2_slice(), Alberto Garcia, 2019/10/15
- [RFC PATCH 09/23] qcow2: Add l2_entry_size(), Alberto Garcia, 2019/10/15
- [RFC PATCH 01/23] qcow2: Add calculate_l2_meta(), Alberto Garcia, 2019/10/15
- [RFC PATCH 03/23] qcow2: Process QCOW2_CLUSTER_ZERO_ALLOC clusters in handle_copied(), Alberto Garcia, 2019/10/15
- [RFC PATCH 05/23] qcow2: Document the Extended L2 Entries feature, Alberto Garcia, 2019/10/15
- [RFC PATCH 04/23] qcow2: Add get_l2_entry() and set_l2_entry(), Alberto Garcia, 2019/10/15
- [RFC PATCH 08/23] qcow2: Add offset_to_sc_index(), Alberto Garcia, 2019/10/15
- [RFC PATCH 11/23] qcow2: Add qcow2_get_subcluster_type(), Alberto Garcia, 2019/10/15
- [RFC PATCH 15/23] qcow2: Add subcluster support to zero_in_l2_slice(), Alberto Garcia, 2019/10/15