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block: split flags in copy_range

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Pass read flags and write flags separately. This is needed to handle
coming BDRV_REQ_NO_SERIALISING clearly in following patches.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy
2018-07-09 19:37:17 +03:00
committed by Kevin Wolf
parent 999658a05e
commit 67b51fb998
11 changed files with 90 additions and 59 deletions
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3
include/block/block.h
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@@ -699,5 +699,6 @@ void bdrv_unregister_buf(BlockDriverState *bs, void *host);
**/
int coroutine_fn bdrv_co_copy_range(BdrvChild *src, uint64_t src_offset,
BdrvChild *dst, uint64_t dst_offset,
uint64_t bytes, BdrvRequestFlags flags);
uint64_t bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
#endif

14
include/block/block_int.h
View File

@@ -218,7 +218,8 @@ struct BlockDriver {
BdrvChild *dst,
uint64_t dst_offset,
uint64_t bytes,
BdrvRequestFlags flags);
BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
/* Map [offset, offset + nbytes) range onto a child of bs to copy data to,
* and invoke bdrv_co_copy_range_to(child, src, ...), or perform the copy
@@ -234,7 +235,8 @@ struct BlockDriver {
BdrvChild *dst,
uint64_t dst_offset,
uint64_t bytes,
BdrvRequestFlags flags);
BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
/*
* Building block for bdrv_block_status[_above] and
@@ -1156,10 +1158,14 @@ void blockdev_close_all_bdrv_states(void);
int coroutine_fn bdrv_co_copy_range_from(BdrvChild *src, uint64_t src_offset,
BdrvChild *dst, uint64_t dst_offset,
uint64_t bytes, BdrvRequestFlags flags);
uint64_t bytes,
BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
int coroutine_fn bdrv_co_copy_range_to(BdrvChild *src, uint64_t src_offset,
BdrvChild *dst, uint64_t dst_offset,
uint64_t bytes, BdrvRequestFlags flags);
uint64_t bytes,
BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
int refresh_total_sectors(BlockDriverState *bs, int64_t hint);