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From 25760de201dc5c29d171fc4ae4f34d6eaabbdad6 Mon Sep 17 00:00:00 2001
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Message-Id: <25760de201dc5c29d171fc4ae4f34d6eaabbdad6.1389014116.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 14:09:23 +0100
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Subject: [PATCH 35/50] scsi-disk: catch write protection errors in UNMAP
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <1386598178-11845-38-git-send-email-pbonzini@redhat.com>
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Patchwork-id: 56074
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O-Subject: [RHEL 7.0 qemu-kvm PATCH 37/52] scsi-disk: catch write protection errors in UNMAP
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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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This is the same that is already done for WRITE SAME.
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit c5fd1fb038405ed13496761970b3b531f747a892)
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---
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hw/scsi/scsi-disk.c | 6 ++++++
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1 file changed, 6 insertions(+)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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hw/scsi/scsi-disk.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
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index 74e6a14..4138268 100644
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--- a/hw/scsi/scsi-disk.c
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+++ b/hw/scsi/scsi-disk.c
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@@ -1543,6 +1543,7 @@ done:
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static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf)
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{
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+ SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
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uint8_t *p = inbuf;
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int len = r->req.cmd.xfer;
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UnmapCBData *data;
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@@ -1560,6 +1561,11 @@ static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf)
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goto invalid_param_len;
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}
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+ if (bdrv_is_read_only(s->qdev.conf.bs)) {
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+ scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED));
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+ return;
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+ }
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+
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data = g_new0(UnmapCBData, 1);
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data->r = r;
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data->inbuf = &p[8];
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--
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1.7.11.7
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