diff options
Diffstat (limited to 'block/iscsi.c')
| -rw-r--r-- | block/iscsi.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/block/iscsi.c b/block/iscsi.c index 95ce9e139e..b2b4e5d2a9 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -1813,19 +1813,22 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) IscsiLun *iscsilun = bs->opaque; uint64_t max_xfer_len = iscsilun->use_16_for_rw ? 0xffffffff : 0xffff; + unsigned int block_size = MAX(BDRV_SECTOR_SIZE, iscsilun->block_size); - bs->bl.request_alignment = iscsilun->block_size; + assert(iscsilun->block_size >= BDRV_SECTOR_SIZE || bs->sg); + + bs->bl.request_alignment = block_size; if (iscsilun->bl.max_xfer_len) { max_xfer_len = MIN(max_xfer_len, iscsilun->bl.max_xfer_len); } - if (max_xfer_len * iscsilun->block_size < INT_MAX) { + if (max_xfer_len * block_size < INT_MAX) { bs->bl.max_transfer = max_xfer_len * iscsilun->block_size; } if (iscsilun->lbp.lbpu) { - if (iscsilun->bl.max_unmap < 0xffffffff / iscsilun->block_size) { + if (iscsilun->bl.max_unmap < 0xffffffff / block_size) { bs->bl.max_pdiscard = iscsilun->bl.max_unmap * iscsilun->block_size; } @@ -1835,7 +1838,7 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) bs->bl.pdiscard_alignment = iscsilun->block_size; } - if (iscsilun->bl.max_ws_len < 0xffffffff / iscsilun->block_size) { + if (iscsilun->bl.max_ws_len < 0xffffffff / block_size) { bs->bl.max_pwrite_zeroes = iscsilun->bl.max_ws_len * iscsilun->block_size; } @@ -1846,7 +1849,7 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) bs->bl.pwrite_zeroes_alignment = iscsilun->block_size; } if (iscsilun->bl.opt_xfer_len && - iscsilun->bl.opt_xfer_len < INT_MAX / iscsilun->block_size) { + iscsilun->bl.opt_xfer_len < INT_MAX / block_size) { bs->bl.opt_transfer = pow2floor(iscsilun->bl.opt_xfer_len * iscsilun->block_size); } |