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block/io: bdrv_pdiscard: support int64_t bytes parameter

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This fixes at least one overflow in qcow2_process_discards, which
passes 64bit region length to bdrv_pdiscard where bytes (or sectors in
the past) parameter is int since its introduction in 0b919fae.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-04-23 15:57:05 +03:00 • committed by Kevin Wolf
parent 1477b6c803
commit d93e572688
2 changed files with 10 additions and 10 deletions
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4
include/block/block.h
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@ -434,8 +434,8 @@ void bdrv_drain_all(void);
AIO_WAIT_WHILE(bdrv_get_aio_context(bs_), \
cond); })
int bdrv_pdiscard(BdrvChild *child, int64_t offset, int bytes);
int bdrv_co_pdiscard(BdrvChild *child, int64_t offset, int bytes);
int bdrv_pdiscard(BdrvChild *child, int64_t offset, int64_t bytes);
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);
bool bdrv_unallocated_blocks_are_zero(BlockDriverState *bs);