diff options
Diffstat (limited to 'block/io.c')
| -rw-r--r-- | block/io.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/block/io.c b/block/io.c index 420944d80d..da874d0f19 100644 --- a/block/io.c +++ b/block/io.c @@ -540,17 +540,6 @@ static int bdrv_check_byte_request(BlockDriverState *bs, int64_t offset, return 0; } -static int bdrv_check_request(BlockDriverState *bs, int64_t sector_num, - int nb_sectors) -{ - if (nb_sectors < 0 || nb_sectors > BDRV_REQUEST_MAX_SECTORS) { - return -EIO; - } - - return bdrv_check_byte_request(bs, sector_num * BDRV_SECTOR_SIZE, - nb_sectors * BDRV_SECTOR_SIZE); -} - typedef struct RwCo { BdrvChild *child; int64_t offset; @@ -1879,8 +1868,8 @@ int bdrv_is_allocated_above(BlockDriverState *top, return 0; } -int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, - const uint8_t *buf, int nb_sectors) +int bdrv_pwrite_compressed(BlockDriverState *bs, int64_t offset, + const void *buf, int bytes) { BlockDriver *drv = bs->drv; int ret; @@ -1891,14 +1880,17 @@ int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num, if (!drv->bdrv_write_compressed) { return -ENOTSUP; } - ret = bdrv_check_request(bs, sector_num, nb_sectors); + ret = bdrv_check_byte_request(bs, offset, bytes); if (ret < 0) { return ret; } assert(QLIST_EMPTY(&bs->dirty_bitmaps)); + assert((offset & (BDRV_SECTOR_SIZE - 1)) == 0); + assert((bytes & (BDRV_SECTOR_SIZE - 1)) == 0); - return drv->bdrv_write_compressed(bs, sector_num, buf, nb_sectors); + return drv->bdrv_write_compressed(bs, offset >> BDRV_SECTOR_BITS, buf, + bytes >> BDRV_SECTOR_BITS); } typedef struct BdrvVmstateCo { |