diff options
| author | Peter Lieven <pl@kamp.de> | 2013-07-11 14:16:25 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-07-17 17:01:41 +0200 |
| commit | 0777b5dde42f4f453abc8bb2c4e145fb8749415d (patch) | |
| tree | 674f290016b871a5c26c43abf4f926c743b7c6f8 /block | |
| parent | 91bea4e2bb1a5f7954a3b3a4f2e28e96bd25c458 (diff) | |
iscsi: factor out sector conversions
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/iscsi.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/block/iscsi.c b/block/iscsi.c index 1294fdf6cf..5f28c6a2ea 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -232,6 +232,11 @@ iscsi_aio_write16_cb(struct iscsi_context *iscsi, int status, iscsi_schedule_bh(acb); } +static int64_t sector_lun2qemu(int64_t sector, IscsiLun *iscsilun) +{ + return sector * iscsilun->block_size / BDRV_SECTOR_SIZE; +} + static int64_t sector_qemu2lun(int64_t sector, IscsiLun *iscsilun) { return sector * BDRV_SECTOR_SIZE / iscsilun->block_size; @@ -296,7 +301,7 @@ iscsi_aio_writev_acb(IscsiAIOCB *acb) lba = sector_qemu2lun(acb->sector_num, acb->iscsilun); *(uint32_t *)&acb->task->cdb[2] = htonl(lba >> 32); *(uint32_t *)&acb->task->cdb[6] = htonl(lba & 0xffffffff); - num_sectors = size / acb->iscsilun->block_size; + num_sectors = sector_qemu2lun(acb->nb_sectors, acb->iscsilun); *(uint32_t *)&acb->task->cdb[10] = htonl(num_sectors); acb->task->expxferlen = size; @@ -1161,8 +1166,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags) if ((ret = iscsi_readcapacity_sync(iscsilun)) != 0) { goto out; } - bs->total_sectors = iscsilun->num_blocks * - iscsilun->block_size / BDRV_SECTOR_SIZE ; + bs->total_sectors = sector_lun2qemu(iscsilun->num_blocks, iscsilun); /* Medium changer or tape. We dont have any emulation for this so this must * be sg ioctl compatible. We force it to be sg, otherwise qemu will try |