diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 24 |
1 files changed, 18 insertions, 6 deletions
@@ -3196,8 +3196,8 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, /* * Handle a write request in coroutine context */ -static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, +static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs, + int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags) { int ret; @@ -3208,21 +3208,33 @@ static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs, if (bs->read_only) { return -EACCES; } - if (bdrv_check_request(bs, sector_num, nb_sectors)) { + if (bdrv_check_byte_request(bs, offset, bytes)) { return -EIO; } /* throttling disk I/O */ if (bs->io_limits_enabled) { - bdrv_io_limits_intercept(bs, nb_sectors, true); + /* TODO Switch to byte granularity */ + bdrv_io_limits_intercept(bs, bytes >> BDRV_SECTOR_BITS, true); } - ret = bdrv_aligned_pwritev(bs, sector_num << BDRV_SECTOR_BITS, - nb_sectors << BDRV_SECTOR_BITS, qiov, flags); + ret = bdrv_aligned_pwritev(bs, offset, bytes, qiov, flags); return ret; } +static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs, + int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, + BdrvRequestFlags flags) +{ + if (nb_sectors < 0 || nb_sectors > (INT_MAX >> BDRV_SECTOR_BITS)) { + return -EINVAL; + } + + return bdrv_co_do_pwritev(bs, sector_num << BDRV_SECTOR_BITS, + nb_sectors << BDRV_SECTOR_BITS, qiov, flags); +} + int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) { |