48         int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
51         int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
57 static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,
59 static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num,
898 static int bdrv_check_request(BlockDriverState *bs, int64_t sector_num,  in bdrv_check_request()  argument
901     return bdrv_check_byte_request(bs, sector_num * BDRV_SECTOR_SIZE,  in bdrv_check_request()
906 int bdrv_read(BlockDriverState *bs, int64_t sector_num,  in bdrv_read()  argument
913     if (bdrv_check_request(bs, sector_num, nb_sectors))  in bdrv_read()
916     return drv->bdrv_read(bs, sector_num, buf, nb_sectors);  in bdrv_read()
919 static void set_dirty_bitmap(BlockDriverState *bs, int64_t sector_num,  in set_dirty_bitmap()  argument
925     start = sector_num / BDRV_SECTORS_PER_DIRTY_CHUNK;  in set_dirty_bitmap()
926     end = (sector_num + nb_sectors - 1) / BDRV_SECTORS_PER_DIRTY_CHUNK;  in set_dirty_bitmap()
953 int bdrv_write(BlockDriverState *bs, int64_t sector_num,  in bdrv_write()  argument
961     if (bdrv_check_request(bs, sector_num, nb_sectors))  in bdrv_write()
965         set_dirty_bitmap(bs, sector_num, nb_sectors, 1);  in bdrv_write()
968     if (bs->wr_highest_sector < sector_num + nb_sectors - 1) {  in bdrv_write()
969         bs->wr_highest_sector = sector_num + nb_sectors - 1;  in bdrv_write()
972     return drv->bdrv_write(bs, sector_num, buf, nb_sectors);  in bdrv_write()
980     int64_t sector_num;  in bdrv_pread()  local
988     sector_num = offset >> BDRV_SECTOR_BITS;  in bdrv_pread()
990         if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pread()
996         sector_num++;  in bdrv_pread()
1003         if ((ret = bdrv_read(bs, sector_num, buf, nb_sectors)) < 0)  in bdrv_pread()
1005         sector_num += nb_sectors;  in bdrv_pread()
1013         if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pread()
1025     int64_t sector_num;  in bdrv_pwrite()  local
1033     sector_num = offset >> BDRV_SECTOR_BITS;  in bdrv_pwrite()
1035         if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pwrite()
1038         if ((ret = bdrv_write(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pwrite()
1043         sector_num++;  in bdrv_pwrite()
1050         if ((ret = bdrv_write(bs, sector_num, buf, nb_sectors)) < 0)  in bdrv_pwrite()
1052         sector_num += nb_sectors;  in bdrv_pwrite()
1060         if ((ret = bdrv_read(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pwrite()
1063         if ((ret = bdrv_write(bs, sector_num, tmp_buf, 1)) < 0)  in bdrv_pwrite()
1099 int bdrv_write_sync(BlockDriverState *bs, int64_t sector_num,  in bdrv_write_sync()  argument
1102     return bdrv_pwrite_sync(bs, BDRV_SECTOR_SIZE * sector_num,  in bdrv_write_sync()
1500 int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,  in bdrv_is_allocated()  argument
1505         if (sector_num >= bs->total_sectors) {  in bdrv_is_allocated()
1509         n = bs->total_sectors - sector_num;  in bdrv_is_allocated()
1513     return bs->drv->bdrv_is_allocated(bs, sector_num, nb_sectors, pnum);  in bdrv_is_allocated()
1728 int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,  in bdrv_write_compressed()  argument
1736     if (bdrv_check_request(bs, sector_num, nb_sectors))  in bdrv_write_compressed()
1740         set_dirty_bitmap(bs, sector_num, nb_sectors, 1);  in bdrv_write_compressed()
1743     return drv->bdrv_write_compressed(bs, sector_num, buf, nb_sectors);  in bdrv_write_compressed()
1979 BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,  in bdrv_aio_readv()  argument
1988     if (bdrv_check_request(bs, sector_num, nb_sectors))  in bdrv_aio_readv()
1991     ret = drv->bdrv_aio_readv(bs, sector_num, qiov, nb_sectors,  in bdrv_aio_readv()
2003 BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,  in bdrv_aio_writev()  argument
2014     if (bdrv_check_request(bs, sector_num, nb_sectors))  in bdrv_aio_writev()
2018         set_dirty_bitmap(bs, sector_num, nb_sectors, 1);  in bdrv_aio_writev()
2021     ret = drv->bdrv_aio_writev(bs, sector_num, qiov, nb_sectors,  in bdrv_aio_writev()
2028         if (bs->wr_highest_sector < sector_num + nb_sectors - 1) {  in bdrv_aio_writev()
2029             bs->wr_highest_sector = sector_num + nb_sectors - 1;  in bdrv_aio_writev()
2320                                             int64_t sector_num,  in bdrv_aio_rw_vector()  argument
2340         acb->ret = bdrv_write(bs, sector_num, acb->bounce, nb_sectors);  in bdrv_aio_rw_vector()
2342         acb->ret = bdrv_read(bs, sector_num, acb->bounce, nb_sectors);  in bdrv_aio_rw_vector()
2351         int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,  in bdrv_aio_readv_em()  argument
2354     return bdrv_aio_rw_vector(bs, sector_num, qiov, nb_sectors, cb, opaque, 0);  in bdrv_aio_readv_em()
2358         int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,  in bdrv_aio_writev_em()  argument
2361     return bdrv_aio_rw_vector(bs, sector_num, qiov, nb_sectors, cb, opaque, 1);  in bdrv_aio_writev_em()
2412 static int bdrv_read_em(BlockDriverState *bs, int64_t sector_num,  in bdrv_read_em()  argument
2426     acb = bdrv_aio_readv(bs, sector_num, &qiov, nb_sectors,  in bdrv_read_em()
2443 static int bdrv_write_em(BlockDriverState *bs, int64_t sector_num,  in bdrv_write_em()  argument
2457     acb = bdrv_aio_writev(bs, sector_num, &qiov, nb_sectors,  in bdrv_write_em()