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From 7d6eed4b197081fa324e42f7624d6ab0a27bab6d Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Wed, 17 Jan 2018 06:08:34 +0100
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Subject: [PATCH 04/21] scsi-generic: Add share-rw option
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <20180117060834.17481-3-famz@redhat.com>
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Patchwork-id: 78652
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O-Subject: [RHV7.5 qemu-kvm-rhev PATCH 2/2] scsi-generic: Add share-rw option
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Bugzilla: 1518482
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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Add the property to the device model, then parse it by calling
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blkconf_apply_backend_options().
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In addition to blk_set_perm(), the called function also handles error
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options and wce. For error options we've already checked that the
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default values are used, for wce we don't have the option either so it
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is always the default (true). In other words there is no change of
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behavior in these regards.
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Message-Id: <20171205151553.7834-1-famz@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit d9bcd6f7f23a13ea627d8edb85c0706525da0b75)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/scsi/scsi-generic.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c
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index bd0d9ff..ba70c0d 100644
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--- a/hw/scsi/scsi-generic.c
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+++ b/hw/scsi/scsi-generic.c
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@@ -482,6 +482,7 @@ static void scsi_generic_realize(SCSIDevice *s, Error **errp)
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int rc;
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int sg_version;
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struct sg_scsi_id scsiid;
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+ Error *local_err = NULL;
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if (!s->conf.blk) {
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error_setg(errp, "drive property not set");
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@@ -515,6 +516,13 @@ static void scsi_generic_realize(SCSIDevice *s, Error **errp)
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error_setg(errp, "SG_GET_SCSI_ID ioctl failed");
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return;
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}
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+ blkconf_apply_backend_options(&s->conf,
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+ blk_is_read_only(s->conf.blk),
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+ true, &local_err);
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+ if (local_err) {
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+ error_propagate(errp, local_err);
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+ return;
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+ }
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/* define device state */
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s->type = scsiid.scsi_type;
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@@ -565,6 +573,7 @@ static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
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static Property scsi_generic_properties[] = {
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DEFINE_PROP_DRIVE("drive", SCSIDevice, conf.blk),
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+ DEFINE_PROP_BOOL("share-rw", SCSIDevice, conf.share_rw, false),
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DEFINE_PROP_END_OF_LIST(),
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};
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--
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1.8.3.1
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