To be used in the following commit without a forward declaration.
Signed-off-by: Anton Nefedov <[email protected]>
---
block/qcow2.c | 39 +++++++++++++++++++--------------------
1 file changed, 19 insertions(+), 20 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 0f4de40..5c7c2b5 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1943,6 +1943,25 @@ static bool merge_cow(uint64_t offset, unsigned bytes,
return false;
}
+static bool is_zero_sectors(BlockDriverState *bs, int64_t start,
+ uint32_t count)
+{
+ int nr;
+ BlockDriverState *file;
+ int64_t res;
+
+ if (start + count > bs->total_sectors) {
+ count = bs->total_sectors - start;
+ }
+
+ if (!count) {
+ return true;
+ }
+ res = bdrv_get_block_status_above(bs, NULL, start, count,
+ &nr, &file);
+ return res >= 0 && (res & BDRV_BLOCK_ZERO) && nr == count;
+}
+
/*
* If the specified area is beyond EOF, allocates it + prealloc_size
* bytes ahead.
@@ -3086,26 +3105,6 @@ finish:
return ret;
}
-
-static bool is_zero_sectors(BlockDriverState *bs, int64_t start,
- uint32_t count)
-{
- int nr;
- BlockDriverState *file;
- int64_t res;
-
- if (start + count > bs->total_sectors) {
- count = bs->total_sectors - start;
- }
-
- if (!count) {
- return true;
- }
- res = bdrv_get_block_status_above(bs, NULL, start, count,
- &nr, &file);
- return res >= 0 && (res & BDRV_BLOCK_ZERO) && nr == count;
-}
-
static coroutine_fn int qcow2_co_pwrite_zeroes(BlockDriverState *bs,
int64_t offset, int bytes, BdrvRequestFlags flags)
{
--
2.7.4
