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[PATCH v10 08/34] qcow2: Add dummy has_subclusters() function

From: Alberto Garcia
Subject: [PATCH v10 08/34] qcow2: Add dummy has_subclusters() function
Date: Fri, 3 Jul 2020 17:57:54 +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

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)

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