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authorFam Zheng <famz@redhat.com>2018-07-10 14:31:17 +0800
committerKevin Wolf <kwolf@redhat.com>2018-07-10 16:01:52 +0200
commit0b9fd3f467dc5ac041fa014cd28c949b25b87d25 (patch)
treedad799a3301d7ae3c789bf810518b889bf67f980 /include/block/block.h
parentecc983a507bec9d3130434702d7031bfd372ba74 (diff)
block: Use BdrvChild to discard
Other I/O functions are already using a BdrvChild pointer in the API, so make discard do the same. It makes it possible to initiate the same permission checks before doing I/O, and much easier to share the helper functions for this, which will be added and used by write, truncate and copy range paths. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block/block.h')
-rw-r--r--include/block/block.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/block/block.h b/include/block/block.h
index a91f37bedf..f85e3a6ed3 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -418,8 +418,8 @@ AioWait *bdrv_get_aio_wait(BlockDriverState *bs);
bdrv_get_aio_context(bs_), \
cond); })
-int bdrv_pdiscard(BlockDriverState *bs, int64_t offset, int bytes);
-int bdrv_co_pdiscard(BlockDriverState *bs, int64_t offset, int bytes);
+int bdrv_pdiscard(BdrvChild *child, int64_t offset, int bytes);
+int bdrv_co_pdiscard(BdrvChild *child, int64_t offset, int bytes);
int bdrv_has_zero_init_1(BlockDriverState *bs);
int bdrv_has_zero_init(BlockDriverState *bs);
bool bdrv_unallocated_blocks_are_zero(BlockDriverState *bs);