diff mbox

[PATCHv3,10/20] iscsi: set limits in BlockDriverState

Message ID 1380029714-5239-11-git-send-email-pl@kamp.de
State New
Headers show

Commit Message

Peter Lieven Sept. 24, 2013, 1:35 p.m. UTC 
Signed-off-by: Peter Lieven <pl@kamp.de>
---
 block/iscsi.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

Comments

Eric Blake Oct. 2, 2013, 4:43 p.m. UTC | #1 
On 09/24/2013 07:35 AM, Peter Lieven wrote:
> Signed-off-by: Peter Lieven <pl@kamp.de>
> ---
>  block/iscsi.c |   14 ++++++++++++++
>  1 file changed, 14 insertions(+)

Reviewed-by: Eric Blake <eblake@redhat.com>
diff mbox

Patch

diff --git a/block/iscsi.c b/block/iscsi.c
index ce8823d..90dc7c2 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1367,6 +1367,20 @@  static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
                sizeof(struct scsi_inquiry_block_limits));
         scsi_free_scsi_task(task);
         task = NULL;
+
+        if (iscsilun->bl.max_unmap < 0xffffffff) {
+            bs->bl.max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
+                                                 iscsilun);
+        }
+        bs->bl.discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
+                                                   iscsilun);
+
+        if (iscsilun->bl.max_ws_len < 0xffffffff) {
+            bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
+                                                      iscsilun);
+        }
+        bs->bl.write_zeroes_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
+                                                        iscsilun);
     }
 
 #if defined(LIBISCSI_FEATURE_NOP_COUNTER)