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| author | Max Reitz <mreitz@redhat.com> | 2017-06-13 22:21:05 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-07-11 17:45:02 +0200 |
| commit | 772d1f973f87269f6a4a4ea4b880680f3779bbdf (patch) | |
| tree | a9344e1c6ee3050763ec568c4e0a23c5f677606a /block/qcow2.h | |
| parent | 60c48a29b75f3e1276bb046186476674bbc74de9 (diff) | |
| download | qemu-772d1f973f87269f6a4a4ea4b880680f3779bbdf.tar.gz | |
block/qcow2: falloc/full preallocating growth
Implement the preallocation modes falloc and full for growing qcow2
images.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170613202107.10125-15-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 3854080725..96a8d43c17 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -549,6 +549,11 @@ int qcow2_update_cluster_refcount(BlockDriverState *bs, int64_t cluster_index, uint64_t addend, bool decrease, enum qcow2_discard_type type); +int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t offset, + uint64_t additional_clusters, bool exact_size, + int new_refblock_index, + uint64_t new_refblock_offset); + int64_t qcow2_alloc_clusters(BlockDriverState *bs, uint64_t size); int64_t qcow2_alloc_clusters_at(BlockDriverState *bs, uint64_t offset, int64_t nb_clusters); |