yeahuh / rpms / qemu-kvm

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From a9bf8d1acc8589ebda4fb96acd08822a7937af9b Mon Sep 17 00:00:00 2001
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Message-Id: <a9bf8d1acc8589ebda4fb96acd08822a7937af9b.1389014116.git.minovotn@redhat.com>
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In-Reply-To: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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References: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Mon, 9 Dec 2013 14:09:04 +0100
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Subject: [PATCH 16/50] iscsi: set limits in BlockDriverState
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <1386598178-11845-19-git-send-email-pbonzini@redhat.com>
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Patchwork-id: 56055
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O-Subject: [RHEL 7.0 qemu-kvm PATCH 18/52] iscsi: set limits in BlockDriverState
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Bugzilla: 1007815
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Peter Lieven <pl@kamp.de>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Peter Lieven <pl@kamp.de>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit ba6c59191f245147e7ee0c2b9ecaf5fb116f7877)
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---
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 block/iscsi.c | 14 ++++++++++++++
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 1 file changed, 14 insertions(+)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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 block/iscsi.c | 14 ++++++++++++++
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 1 file changed, 14 insertions(+)
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diff --git a/block/iscsi.c b/block/iscsi.c
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index 1e8a2bb..e5f4670 100644
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--- a/block/iscsi.c
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+++ b/block/iscsi.c
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@@ -1386,6 +1386,20 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
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                sizeof(struct scsi_inquiry_block_limits));
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         scsi_free_scsi_task(task);
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         task = NULL;
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+
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+        if (iscsilun->bl.max_unmap < 0xffffffff) {
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+            bs->bl.max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
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+                                                 iscsilun);
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+        }
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+        bs->bl.discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
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+                                                   iscsilun);
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+
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+        if (iscsilun->bl.max_ws_len < 0xffffffff) {
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+            bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
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+                                                      iscsilun);
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+        }
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+        bs->bl.write_zeroes_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
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+                                                        iscsilun);
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     }
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 #if defined(LIBISCSI_FEATURE_NOP_COUNTER)
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-- 
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1.7.11.7
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