diff options
| author | Eric Blake <eblake@redhat.com> | 2018-04-24 14:25:02 -0500 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-05-15 16:11:41 +0200 |
| commit | de7056a3f95e85aa6bba30ad4b37a8dbc2b072ab (patch) | |
| tree | a91ce3423174c323116161dfbec81aa888b7dff8 /block/win32-aio.c | |
| parent | e31f6864a6d6fa072a5d02e7679d0db6d0c22311 (diff) | |
file-win32: Switch to byte-based callbacks
We are gradually moving away from sector-based interfaces, towards
byte-based. Make the change for the last few sector-based callbacks
in the file-win32 driver.
Note that the driver was already using byte-based calls for
performing actual I/O, so this just gets rid of a round trip
of scaling; however, as I don't know if Windows is tolerant of
non-sector AIO operations, I went with the conservative approach
of modifying .bdrv_refresh_limits to override the block layer
defaults back to the pre-patch value of 512.
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/win32-aio.c')
| -rw-r--r-- | block/win32-aio.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/block/win32-aio.c b/block/win32-aio.c index 3be8f458fa..9cd355d42f 100644 --- a/block/win32-aio.c +++ b/block/win32-aio.c @@ -112,15 +112,14 @@ static const AIOCBInfo win32_aiocb_info = { BlockAIOCB *win32_aio_submit(BlockDriverState *bs, QEMUWin32AIOState *aio, HANDLE hfile, - int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, + uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, BlockCompletionFunc *cb, void *opaque, int type) { struct QEMUWin32AIOCB *waiocb; - uint64_t offset = sector_num * 512; DWORD rc; waiocb = qemu_aio_get(&win32_aiocb_info, bs, cb, opaque); - waiocb->nbytes = nb_sectors * 512; + waiocb->nbytes = bytes; waiocb->qiov = qiov; waiocb->is_read = (type == QEMU_AIO_READ); |