diff options
| author | Alberto Faria <afaria@redhat.com> | 2022-06-09 16:27:40 +0100 |
|---|---|---|
| committer | Hanna Reitz <hreitz@redhat.com> | 2022-07-12 12:14:56 +0200 |
| commit | c1458c66b2a56a86d4e453b52dfd2c06040fe006 (patch) | |
| tree | 0d5b8715b2e0fcb3700cb97f83ddc20630e62205 /block | |
| parent | ca71a64ee52eb0954541137026288970cc8213f7 (diff) | |
block: Make 'bytes' param of bdrv_co_{pread,pwrite,preadv,pwritev}() an int64_t
For consistency with other I/O functions, and in preparation to
implement bdrv_{pread,pwrite}() using generated_co_wrapper.
unsigned int fits in int64_t, so all callers remain correct.
bdrv_check_request32() is called further down the stack and causes -EIO
to be returned if 'bytes' is negative or greater than
BDRV_REQUEST_MAX_BYTES, which in turns never exceeds SIZE_MAX.
Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20220609152744.3891847-7-afaria@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/coroutines.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/coroutines.h b/block/coroutines.h index 830ecaa733..3f41238b33 100644 --- a/block/coroutines.h +++ b/block/coroutines.h @@ -91,11 +91,11 @@ int coroutine_fn blk_co_do_flush(BlockBackend *blk); */ int generated_co_wrapper -bdrv_preadv(BdrvChild *child, int64_t offset, unsigned int bytes, +bdrv_preadv(BdrvChild *child, int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); int generated_co_wrapper -bdrv_pwritev(BdrvChild *child, int64_t offset, unsigned int bytes, +bdrv_pwritev(BdrvChild *child, int64_t offset, int64_t bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); int generated_co_wrapper |