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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-refcount.c | |
| parent | 60c48a29b75f3e1276bb046186476674bbc74de9 (diff) | |
| download | qemu-772d1f973f87269f6a4a4ea4b880680f3779bbdf.zip qemu-772d1f973f87269f6a4a4ea4b880680f3779bbdf.tar.gz qemu-772d1f973f87269f6a4a4ea4b880680f3779bbdf.tar.bz2 | |
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-refcount.c')
| -rw-r--r-- | block/qcow2-refcount.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 1aca645..c9b0dcb 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -34,10 +34,6 @@ static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size); static int QEMU_WARN_UNUSED_RESULT update_refcount(BlockDriverState *bs, int64_t offset, int64_t length, uint64_t addend, bool decrease, enum qcow2_discard_type type); -static 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); static uint64_t get_refcount_ro0(const void *refcount_array, uint64_t index); static uint64_t get_refcount_ro1(const void *refcount_array, uint64_t index); @@ -517,10 +513,10 @@ fail: * Returns: The offset after the new refcount structures (i.e. where the * @additional_clusters may be placed) on success, -errno on error. */ -static int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset, - uint64_t additional_clusters, - bool exact_size, int new_refblock_index, - uint64_t new_refblock_offset) +int64_t qcow2_refcount_area(BlockDriverState *bs, uint64_t start_offset, + uint64_t additional_clusters, bool exact_size, + int new_refblock_index, + uint64_t new_refblock_offset) { BDRVQcow2State *s = bs->opaque; uint64_t total_refblock_count_u64, additional_refblock_count; |