The function has the only user: bdrv_co_block_status(). Inline it to
simplify reviewing of the following patches, which will finally drop
unallocated_blocks_are_zero field too.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
include/block/block.h | 1 -
block.c | 15 ---------------
block/io.c | 11 ++++++++---
3 files changed, 8 insertions(+), 19 deletions(-)
diff --git a/include/block/block.h b/include/block/block.h
index 8b62429aa4..931003a476 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -431,7 +431,6 @@ int bdrv_co_pdiscard(BdrvChild *child, int64_t offset, int64_t bytes);
int bdrv_has_zero_init_1(BlockDriverState *bs);
int bdrv_has_zero_init(BlockDriverState *bs);
int bdrv_has_zero_init_truncate(BlockDriverState *bs);
-bool bdrv_unallocated_blocks_are_zero(BlockDriverState *bs);
bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs);
int bdrv_block_status(BlockDriverState *bs, int64_t offset,
int64_t bytes, int64_t *pnum, int64_t *map,
diff --git a/block.c b/block.c
index cf5c19b1db..0283fdecbc 100644
--- a/block.c
+++ b/block.c
@@ -5305,21 +5305,6 @@ int bdrv_has_zero_init_truncate(BlockDriverState *bs)
return 0;
}
-bool bdrv_unallocated_blocks_are_zero(BlockDriverState *bs)
-{
- BlockDriverInfo bdi;
-
- if (bs->backing) {
- return false;
- }
-
- if (bdrv_get_info(bs, &bdi) == 0) {
- return bdi.unallocated_blocks_are_zero;
- }
-
- return false;
-}
-
bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs)
{
if (!(bs->open_flags & BDRV_O_UNMAP)) {
diff --git a/block/io.c b/block/io.c
index a4f9714230..00e7371d50 100644
--- a/block/io.c
+++ b/block/io.c
@@ -2386,15 +2386,20 @@ static int coroutine_fn bdrv_co_block_status(BlockDriverState *bs,
if (ret & (BDRV_BLOCK_DATA | BDRV_BLOCK_ZERO)) {
ret |= BDRV_BLOCK_ALLOCATED;
} else if (want_zero) {
- if (bdrv_unallocated_blocks_are_zero(bs)) {
- ret |= BDRV_BLOCK_ZERO;
- } else if (bs->backing) {
+ if (bs->backing) {
BlockDriverState *bs2 = bs->backing->bs;
int64_t size2 = bdrv_getlength(bs2);
if (size2 >= 0 && offset >= size2) {
ret |= BDRV_BLOCK_ZERO;
}
+ } else {
+ BlockDriverInfo bdi;
+ int ret2 = bdrv_get_info(bs, &bdi);
+
+ if (ret2 == 0 && bdi.unallocated_blocks_are_zero) {
+ ret |= BDRV_BLOCK_ZERO;
+ }
}
}
--
2.21.0