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qcow2: Add dummy has_subclusters() function 

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>
This commit is contained in:
Alberto Garcia 2020-07-10 18:12:50 +02:00 committed by Max Reitz
parent 30afc12085
commit a3c7d91625
1 changed files with 6 additions and 0 deletions
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6
block/qcow2.h
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@ -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)
{