[libvirt] [PATCHv3 08/26] storage: Move readonly and shared flags to disk source from disk def

Peter Krempa pkrempa at redhat.com
Wed Jun 25 16:54:52 UTC 2014


In the future we might need to track state of individual images. Move
the readonly and shared flags to the virStorageSource struct so that we
can keep them in a per-image basis.
---
 src/conf/domain_conf.c          | 18 ++++++++++--------
 src/conf/domain_conf.h          |  2 --
 src/libxl/libxl_conf.c          |  2 +-
 src/locking/domain_lock.c       |  4 ++--
 src/lxc/lxc_cgroup.c            |  2 +-
 src/lxc/lxc_controller.c        |  2 +-
 src/lxc/lxc_driver.c            |  2 +-
 src/qemu/qemu_cgroup.c          |  4 ++--
 src/qemu/qemu_command.c         | 14 +++++++-------
 src/qemu/qemu_conf.c            |  4 ++--
 src/qemu/qemu_driver.c          |  8 ++++----
 src/qemu/qemu_migration.c       | 16 ++++++++++------
 src/security/security_dac.c     |  2 +-
 src/security/security_selinux.c |  6 +++---
 src/security/virt-aa-helper.c   |  2 +-
 src/util/virstoragefile.h       |  6 ++++++
 src/vbox/vbox_tmpl.c            | 30 +++++++++++++++---------------
 src/xenxs/xen_sxpr.c            | 10 +++++-----
 src/xenxs/xen_xm.c              | 10 +++++-----
 19 files changed, 77 insertions(+), 67 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 02c394f..44903b0 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -5549,9 +5549,9 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
                     goto error;
                 }
             } else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) {
-                def->readonly = true;
+                def->src->readonly = true;
             } else if (xmlStrEqual(cur->name, BAD_CAST "shareable")) {
-                def->shared = true;
+                def->src->shared = true;
             } else if (xmlStrEqual(cur->name, BAD_CAST "transient")) {
                 def->transient = true;
             } else if ((flags & VIR_DOMAIN_XML_INTERNAL_STATUS) &&
@@ -5678,7 +5678,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,

     /* Force CDROM to be listed as read only */
     if (def->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
-        def->readonly = true;
+        def->src->readonly = true;

     if ((def->device == VIR_DOMAIN_DISK_DEVICE_DISK ||
          def->device == VIR_DOMAIN_DISK_DEVICE_LUN) &&
@@ -5700,7 +5700,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
                            snapshot);
             goto error;
         }
-    } else if (def->readonly) {
+    } else if (def->src->readonly) {
         def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_NONE;
     }

@@ -13390,7 +13390,8 @@ virDomainDiskDefCheckABIStability(virDomainDiskDefPtr src,
         return false;
     }

-    if (src->readonly != dst->readonly || src->shared != dst->shared) {
+    if (src->src->readonly != dst->src->readonly ||
+        src->src->shared != dst->src->shared) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                        _("Target disk access mode does not match source"));
         return false;
@@ -15114,7 +15115,8 @@ virDomainDiskDefFormat(virBufferPtr buf,
         virBufferAsprintf(buf, " sgio='%s'", sgio);

     if (def->snapshot &&
-        !(def->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE && def->readonly))
+        !(def->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE &&
+          def->src->readonly))
         virBufferAsprintf(buf, " snapshot='%s'",
                           virDomainSnapshotLocationTypeToString(def->snapshot));
     virBufferAddLit(buf, ">\n");
@@ -15270,9 +15272,9 @@ virDomainDiskDefFormat(virBufferPtr buf,
         virBufferAddLit(buf, "</iotune>\n");
     }

-    if (def->readonly)
+    if (def->src->readonly)
         virBufferAddLit(buf, "<readonly/>\n");
-    if (def->shared)
+    if (def->src->shared)
         virBufferAddLit(buf, "<shareable/>\n");
     if (def->transient)
         virBufferAddLit(buf, "<transient/>\n");
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 1122eb2..bd85514 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -636,8 +636,6 @@ struct _virDomainDiskDef {
     int copy_on_read; /* enum virDomainDiskCopyOnRead */
     int snapshot; /* virDomainSnapshotLocation, snapshot_conf.h */
     int startupPolicy; /* enum virDomainStartupPolicy */
-    bool readonly;
-    bool shared;
     bool transient;
     virDomainDeviceInfo info;
     bool rawio_specified;
diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c
index 4b6b5c0..ea2b21b 100644
--- a/src/libxl/libxl_conf.c
+++ b/src/libxl/libxl_conf.c
@@ -827,7 +827,7 @@ libxlMakeDisk(virDomainDiskDefPtr l_disk, libxl_device_disk *x_disk)

     /* XXX is this right? */
     x_disk->removable = 1;
-    x_disk->readwrite = !l_disk->readonly;
+    x_disk->readwrite = !l_disk->src->readonly;
     x_disk->is_cdrom = l_disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM ? 1 : 0;
     /* An empty CDROM must have the empty format, otherwise libxl fails. */
     if (x_disk->is_cdrom && !x_disk->pdev_path)
diff --git a/src/locking/domain_lock.c b/src/locking/domain_lock.c
index 4b3f4d4..78acaa6 100644
--- a/src/locking/domain_lock.c
+++ b/src/locking/domain_lock.c
@@ -83,9 +83,9 @@ static int virDomainLockManagerAddDisk(virLockManagerPtr lock,
           type == VIR_STORAGE_TYPE_DIR))
         return 0;

-    if (disk->readonly)
+    if (disk->src->readonly)
         diskFlags |= VIR_LOCK_MANAGER_RESOURCE_READONLY;
-    if (disk->shared)
+    if (disk->src->shared)
         diskFlags |= VIR_LOCK_MANAGER_RESOURCE_SHARED;

     VIR_DEBUG("Add disk %s", src);
diff --git a/src/lxc/lxc_cgroup.c b/src/lxc/lxc_cgroup.c
index 39e30ad..00ff807 100644
--- a/src/lxc/lxc_cgroup.c
+++ b/src/lxc/lxc_cgroup.c
@@ -380,7 +380,7 @@ static int virLXCCgroupSetupDeviceACL(virDomainDefPtr def,

         if (virCgroupAllowDevicePath(cgroup,
                                      virDomainDiskGetSource(def->disks[i]),
-                                     (def->disks[i]->readonly ?
+                                     (def->disks[i]->src->readonly ?
                                       VIR_CGROUP_DEVICE_READ :
                                       VIR_CGROUP_DEVICE_RW) |
                                      VIR_CGROUP_DEVICE_MKNOD) < 0)
diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c
index 38acdff..2866869 100644
--- a/src/lxc/lxc_controller.c
+++ b/src/lxc/lxc_controller.c
@@ -455,7 +455,7 @@ static int virLXCControllerSetupNBDDeviceDisk(virDomainDiskDefPtr disk)

     if (virFileNBDDeviceAssociate(src,
                                   format,
-                                  disk->readonly,
+                                  disk->src->readonly,
                                   &dev) < 0)
         return -1;

diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 3875bf3..257303d 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -4068,7 +4068,7 @@ lxcDomainAttachDeviceDiskLive(virLXCDriverPtr driver,
         goto cleanup;
     }

-    perms = (def->readonly ?
+    perms = (def->src->readonly ?
              VIR_CGROUP_DEVICE_READ :
              VIR_CGROUP_DEVICE_RW) |
         VIR_CGROUP_DEVICE_MKNOD;
diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c
index a31558f..3394c68 100644
--- a/src/qemu/qemu_cgroup.c
+++ b/src/qemu/qemu_cgroup.c
@@ -61,10 +61,10 @@ qemuSetupDiskPathAllow(virDomainDiskDefPtr disk,

     VIR_DEBUG("Process path %s for disk", path);
     ret = virCgroupAllowDevicePath(priv->cgroup, path,
-                                   (disk->readonly ? VIR_CGROUP_DEVICE_READ
+                                   (disk->src->readonly ? VIR_CGROUP_DEVICE_READ
                                     : VIR_CGROUP_DEVICE_RW));
     virDomainAuditCgroupPath(vm, priv->cgroup, "allow", path,
-                             disk->readonly ? "r" : "rw", ret == 0);
+                             disk->src->readonly ? "r" : "rw", ret == 0);

     /* Get this for root squash NFS */
     if (ret < 0 &&
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 93d303e..58ba214 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3316,7 +3316,7 @@ qemuBuildDriveStr(virConnectPtr conn,
                 goto error;
             }

-            if (!disk->readonly) {
+            if (!disk->src->readonly) {
                 virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                _("cannot create virtual FAT disks in read-write mode"));
                 goto error;
@@ -3384,7 +3384,7 @@ qemuBuildDriveStr(virConnectPtr conn,
          disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) &&
         disk->bus != VIR_DOMAIN_DISK_BUS_IDE)
         virBufferAddLit(&opt, ",boot=on");
-    if (disk->readonly &&
+    if (disk->src->readonly &&
         virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_READONLY))
         virBufferAddLit(&opt, ",readonly=on");
     if (disk->transient) {
@@ -3443,7 +3443,7 @@ qemuBuildDriveStr(virConnectPtr conn,
         }

         virBufferAsprintf(&opt, ",cache=%s", mode);
-    } else if (disk->shared && !disk->readonly) {
+    } else if (disk->src->shared && !disk->src->readonly) {
         virBufferAddLit(&opt, ",cache=off");
     }

@@ -8019,7 +8019,7 @@ qemuBuildCommandLine(virConnectPtr conn,
                                    virStorageFileFormatTypeToString(disk->src->format));
                     goto error;
                 }
-                if (!disk->readonly) {
+                if (!disk->src->readonly) {
                     virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                    _("cannot create virtual FAT disks in read-write mode"));
                     goto error;
@@ -9649,7 +9649,7 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
         } else if (STREQ(keywords[i], "media")) {
             if (STREQ(values[i], "cdrom")) {
                 def->device = VIR_DOMAIN_DISK_DEVICE_CDROM;
-                def->readonly = true;
+                def->src->readonly = true;
             } else if (STREQ(values[i], "floppy"))
                 def->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
         } else if (STREQ(keywords[i], "format")) {
@@ -9705,7 +9705,7 @@ qemuParseCommandLineDisk(virDomainXMLOptionPtr xmlopt,
             }
         } else if (STREQ(keywords[i], "readonly")) {
             if ((values[i] == NULL) || STREQ(values[i], "on"))
-                def->readonly = true;
+                def->src->readonly = true;
         } else if (STREQ(keywords[i], "aio")) {
             if ((def->iomode = virDomainDiskIoTypeFromString(values[i])) < 0) {
                 virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -10873,7 +10873,7 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
                     disk->bus = VIR_DOMAIN_DISK_BUS_SCSI;
                 if (VIR_STRDUP(disk->dst, "hdc") < 0)
                     goto error;
-                disk->readonly = true;
+                disk->src->readonly = true;
             } else {
                 if (STRPREFIX(arg, "-fd")) {
                     disk->device = VIR_DOMAIN_DISK_DEVICE_FLOPPY;
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 8a3bdef..c9ca17c 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -906,7 +906,7 @@ qemuAddSharedDevice(virQEMUDriverPtr driver,
     if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
         disk = dev->data.disk;

-        if (!disk->shared || !virDomainDiskSourceIsBlockType(disk))
+        if (!disk->src->shared || !virDomainDiskSourceIsBlockType(disk))
             return 0;
     } else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) {
         hostdev = dev->data.hostdev;
@@ -1013,7 +1013,7 @@ qemuRemoveSharedDevice(virQEMUDriverPtr driver,
     if (dev->type == VIR_DOMAIN_DEVICE_DISK) {
         disk = dev->data.disk;

-        if (!disk->shared || !virDomainDiskSourceIsBlockType(disk))
+        if (!disk->src->shared || !virDomainDiskSourceIsBlockType(disk))
             return 0;
     } else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) {
         hostdev = dev->data.hostdev;
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ce57542..552e595 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12069,7 +12069,7 @@ qemuDomainPrepareDiskChainElement(virQEMUDriverPtr driver,
      * permissions it would have as if part of the disk chain is to
      * temporarily modify the disk in place.  */
     virStorageSource origdisk;
-    bool origreadonly = disk->readonly;
+    bool origreadonly = disk->src->readonly;
     virQEMUDriverConfigPtr cfg = NULL;
     int ret = -1;

@@ -12084,7 +12084,7 @@ qemuDomainPrepareDiskChainElement(virQEMUDriverPtr driver,
      * than a full virDomainDiskDef.  */
     memcpy(&origdisk, disk->src, sizeof(origdisk));
     memcpy(disk->src, elem, sizeof(*elem));
-    disk->readonly = mode == VIR_DISK_CHAIN_READ_ONLY;
+    disk->src->readonly = mode == VIR_DISK_CHAIN_READ_ONLY;

     if (mode == VIR_DISK_CHAIN_NO_ACCESS) {
         if (virSecurityManagerRestoreDiskLabel(driver->securityManager,
@@ -12107,7 +12107,7 @@ qemuDomainPrepareDiskChainElement(virQEMUDriverPtr driver,

  cleanup:
     memcpy(disk->src, &origdisk, sizeof(origdisk));
-    disk->readonly = origreadonly;
+    disk->src->readonly = origreadonly;
     virObjectUnref(cfg);
     return ret;
 }
@@ -12759,7 +12759,7 @@ qemuDomainSnapshotPrepare(virConnectPtr conn,

         case VIR_DOMAIN_SNAPSHOT_LOCATION_NONE:
             /* Remember seeing a disk that has snapshot disabled */
-            if (!dom_disk->readonly)
+            if (!dom_disk->src->readonly)
                 forbid_internal = true;
             break;

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 7684aec..8a20bf8 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1159,7 +1159,8 @@ qemuMigrationStartNBDServer(virQEMUDriverPtr driver,
         virDomainDiskDefPtr disk = vm->def->disks[i];

         /* skip shared, RO and source-less disks */
-        if (disk->shared || disk->readonly || !virDomainDiskGetSource(disk))
+        if (disk->src->shared || disk->src->readonly ||
+            !virDomainDiskGetSource(disk))
             continue;

         VIR_FREE(diskAlias);
@@ -1265,7 +1266,8 @@ qemuMigrationDriveMirror(virQEMUDriverPtr driver,
         virDomainBlockJobInfo info;

         /* skip shared, RO and source-less disks */
-        if (disk->shared || disk->readonly || !virDomainDiskGetSource(disk))
+        if (disk->src->shared || disk->src->readonly ||
+            !virDomainDiskGetSource(disk))
             continue;

         VIR_FREE(diskAlias);
@@ -1351,7 +1353,8 @@ qemuMigrationDriveMirror(virQEMUDriverPtr driver,
         virDomainDiskDefPtr disk = vm->def->disks[--lastGood];

         /* skip shared, RO disks */
-        if (disk->shared || disk->readonly || !virDomainDiskGetSource(disk))
+        if (disk->src->shared || disk->src->readonly ||
+            !virDomainDiskGetSource(disk))
             continue;

         VIR_FREE(diskAlias);
@@ -1414,7 +1417,8 @@ qemuMigrationCancelDriveMirror(qemuMigrationCookiePtr mig,
         virDomainDiskDefPtr disk = vm->def->disks[i];

         /* skip shared, RO and source-less disks */
-        if (disk->shared || disk->readonly || !virDomainDiskGetSource(disk))
+        if (disk->src->shared || disk->src->readonly ||
+            !virDomainDiskGetSource(disk))
             continue;

         VIR_FREE(diskAlias);
@@ -1528,8 +1532,8 @@ qemuMigrationIsSafe(virDomainDefPtr def)
         /* Our code elsewhere guarantees shared disks are either readonly (in
          * which case cache mode doesn't matter) or used with cache=none */
         if (src &&
-            !disk->shared &&
-            !disk->readonly &&
+            !disk->src->shared &&
+            !disk->src->readonly &&
             disk->cachemode != VIR_DOMAIN_DISK_CACHE_DISABLE) {
             int rc;

diff --git a/src/security/security_dac.c b/src/security/security_dac.c
index 639f9b0..38cb47f 100644
--- a/src/security/security_dac.c
+++ b/src/security/security_dac.c
@@ -383,7 +383,7 @@ virSecurityDACRestoreSecurityImageLabelInt(virSecurityManagerPtr mgr,
      * we can't see running VMs using the file on other nodes
      * Safest bet is thus to skip the restore step.
      */
-    if (disk->readonly || disk->shared)
+    if (disk->src->readonly || disk->src->shared)
         return 0;

     if (!src)
diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
index 572f8a1..7740e69 100644
--- a/src/security/security_selinux.c
+++ b/src/security/security_selinux.c
@@ -1155,7 +1155,7 @@ virSecuritySELinuxRestoreSecurityImageLabelInt(virSecurityManagerPtr mgr,
      * we can't see running VMs using the file on other nodes
      * Safest bet is thus to skip the restore step.
      */
-    if (disk->readonly || disk->shared)
+    if (disk->src->readonly || disk->src->shared)
         return 0;

     if (!src || virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_NETWORK)
@@ -1213,9 +1213,9 @@ virSecuritySELinuxSetSecurityFileLabel(virDomainDiskDefPtr disk,
         ret = virSecuritySELinuxSetFilecon(path, disk_seclabel->label);
     } else if (depth == 0) {

-        if (disk->shared) {
+        if (disk->src->shared) {
             ret = virSecuritySELinuxSetFileconOptional(path, data->file_context);
-        } else if (disk->readonly) {
+        } else if (disk->src->readonly) {
             ret = virSecuritySELinuxSetFileconOptional(path, data->content_context);
         } else if (secdef->imagelabel) {
             ret = virSecuritySELinuxSetFileconOptional(path, secdef->imagelabel);
diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c
index e54f73f..b5f66f3 100644
--- a/src/security/virt-aa-helper.c
+++ b/src/security/virt-aa-helper.c
@@ -907,7 +907,7 @@ add_file_path(virDomainDiskDefPtr disk,
     int ret;

     if (depth == 0) {
-        if (disk->readonly)
+        if (disk->src->readonly)
             ret = vah_add_file(buf, path, "r");
         else
             ret = vah_add_file(buf, path, "rw");
diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 48c7e02..fe17b0b 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -240,6 +240,12 @@ struct _virStorageSource {
     size_t nseclabels;
     virSecurityDeviceLabelDefPtr *seclabels;

+    /* Don't ever write to the image */
+    bool readonly;
+
+    /* image is shared across hosts */
+    bool shared;
+
     /* backing chain of the storage source */
     virStorageSourcePtr backingStore;

diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c
index 4ba9ad7..91e9482 100644
--- a/src/vbox/vbox_tmpl.c
+++ b/src/vbox/vbox_tmpl.c
@@ -2791,7 +2791,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {
                 hardDiskPM->vtbl->GetType(hardDiskPM, &hddType);

                 if (hddType == HardDiskType_Immutable)
-                    def->disks[hddNum]->readonly = true;
+                    def->disks[hddNum]->src->readonly = true;
                 ignore_value(virDomainDiskSetSource(def->disks[hddNum],
                                                     hddlocation));
                 ignore_value(VIR_STRDUP(def->disks[hddNum]->dst, "hda"));
@@ -2813,7 +2813,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {
                 hardDiskPS->vtbl->GetType(hardDiskPS, &hddType);

                 if (hddType == HardDiskType_Immutable)
-                    def->disks[hddNum]->readonly = true;
+                    def->disks[hddNum]->src->readonly = true;
                 ignore_value(virDomainDiskSetSource(def->disks[hddNum],
                                                     hddlocation));
                 ignore_value(VIR_STRDUP(def->disks[hddNum]->dst, "hdb"));
@@ -2835,7 +2835,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {
                 hardDiskSS->vtbl->GetType(hardDiskSS, &hddType);

                 if (hddType == HardDiskType_Immutable)
-                    def->disks[hddNum]->readonly = true;
+                    def->disks[hddNum]->src->readonly = true;
                 ignore_value(virDomainDiskSetSource(def->disks[hddNum],
                                                     hddlocation));
                 ignore_value(VIR_STRDUP(def->disks[hddNum]->dst, "hdd"));
@@ -2977,7 +2977,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {

                 medium->vtbl->GetReadOnly(medium, &readOnly);
                 if (readOnly == PR_TRUE)
-                    def->disks[diskCount]->readonly = true;
+                    def->disks[diskCount]->src->readonly = true;

                 virDomainDiskSetType(def->disks[diskCount],
                                      VIR_STORAGE_TYPE_FILE);
@@ -3257,7 +3257,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {
                                 def->disks[def->ndisks - 1]->bus = VIR_DOMAIN_DISK_BUS_IDE;
                                 virDomainDiskSetType(def->disks[def->ndisks - 1],
                                                      VIR_STORAGE_TYPE_FILE);
-                                def->disks[def->ndisks - 1]->readonly = true;
+                                def->disks[def->ndisks - 1]->src->readonly = true;
                                 ignore_value(virDomainDiskSetSource(def->disks[def->ndisks - 1], location));
                                 ignore_value(VIR_STRDUP(def->disks[def->ndisks - 1]->dst, "hdc"));
                                 def->ndisks--;
@@ -3304,7 +3304,7 @@ static char *vboxDomainGetXMLDesc(virDomainPtr dom, unsigned int flags) {
                                     def->disks[def->ndisks - 1]->bus = VIR_DOMAIN_DISK_BUS_FDC;
                                     virDomainDiskSetType(def->disks[def->ndisks - 1],
                                                          VIR_STORAGE_TYPE_FILE);
-                                    def->disks[def->ndisks - 1]->readonly = false;
+                                    def->disks[def->ndisks - 1]->src->readonly = false;
                                     ignore_value(virDomainDiskSetSource(def->disks[def->ndisks - 1], location));
                                     ignore_value(VIR_STRDUP(def->disks[def->ndisks - 1]->dst, "fda"));
                                     def->ndisks--;
@@ -3910,9 +3910,9 @@ vboxAttachDrives(virDomainDefPtr def, vboxGlobalData *data, IMachine *machine)
         VIR_DEBUG("disk(%zu) driverType: %s", i,
                   virStorageFileFormatTypeToString(format));
         VIR_DEBUG("disk(%zu) cachemode:  %d", i, def->disks[i]->cachemode);
-        VIR_DEBUG("disk(%zu) readonly:   %s", i, (def->disks[i]->readonly
+        VIR_DEBUG("disk(%zu) readonly:   %s", i, (def->disks[i]->src->readonly
                                              ? "True" : "False"));
-        VIR_DEBUG("disk(%zu) shared:     %s", i, (def->disks[i]->shared
+        VIR_DEBUG("disk(%zu) shared:     %s", i, (def->disks[i]->src->shared
                                              ? "True" : "False"));

         if (def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_CDROM) {
@@ -4014,11 +4014,11 @@ vboxAttachDrives(virDomainDefPtr def, vboxGlobalData *data, IMachine *machine)
                                          "attached as harddisk: %s, rc=%08x"),
                                        src, (unsigned)rc);
                     } else {
-                        if (def->disks[i]->readonly) {
+                        if (def->disks[i]->src->readonly) {
                             hardDisk->vtbl->SetType(hardDisk,
                                                     HardDiskType_Immutable);
                             VIR_DEBUG("setting harddisk to readonly");
-                        } else if (!def->disks[i]->readonly) {
+                        } else if (!def->disks[i]->src->readonly) {
                             hardDisk->vtbl->SetType(hardDisk,
                                                     HardDiskType_Normal);
                             VIR_DEBUG("setting harddisk type to normal");
@@ -4193,9 +4193,9 @@ vboxAttachDrives(virDomainDefPtr def, vboxGlobalData *data, IMachine *machine)
         VIR_DEBUG("disk(%zu) driverType: %s", i,
                   virStorageFileFormatTypeToString(format));
         VIR_DEBUG("disk(%zu) cachemode:  %d", i, def->disks[i]->cachemode);
-        VIR_DEBUG("disk(%zu) readonly:   %s", i, (def->disks[i]->readonly
+        VIR_DEBUG("disk(%zu) readonly:   %s", i, (def->disks[i]->src->readonly
                                              ? "True" : "False"));
-        VIR_DEBUG("disk(%zu) shared:     %s", i, (def->disks[i]->shared
+        VIR_DEBUG("disk(%zu) shared:     %s", i, (def->disks[i]->src->shared
                                              ? "True" : "False"));

         if (type == VIR_STORAGE_TYPE_FILE && src) {
@@ -4317,10 +4317,10 @@ vboxAttachDrives(virDomainDefPtr def, vboxGlobalData *data, IMachine *machine)
             }

             if (def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK) {
-                if (def->disks[i]->readonly) {
+                if (def->disks[i]->src->readonly) {
                     medium->vtbl->SetType(medium, MediumType_Immutable);
                     VIR_DEBUG("setting harddisk to immutable");
-                } else if (!def->disks[i]->readonly) {
+                } else if (!def->disks[i]->src->readonly) {
                     medium->vtbl->SetType(medium, MediumType_Normal);
                     VIR_DEBUG("setting harddisk type to normal");
                 }
@@ -7500,7 +7500,7 @@ int vboxSnapshotGetReadOnlyDisks(virDomainSnapshotPtr snapshot,
             goto cleanup;
         }
         if (readOnly == PR_TRUE)
-            def->dom->disks[diskCount]->readonly = true;
+            def->dom->disks[diskCount]->src->readonly = true;
         def->dom->disks[diskCount]->src->type = VIR_STORAGE_TYPE_FILE;
         def->dom->disks[diskCount]->dst = vboxGenerateMediumName(storageBus,
                                                                  deviceInst,
diff --git a/src/xenxs/xen_sxpr.c b/src/xenxs/xen_sxpr.c
index aacf74c..08a10e7 100644
--- a/src/xenxs/xen_sxpr.c
+++ b/src/xenxs/xen_sxpr.c
@@ -495,10 +495,10 @@ xenParseSxprDisks(virDomainDefPtr def,

             if (mode &&
                 strchr(mode, 'r'))
-                disk->readonly = true;
+                disk->src->readonly = true;
             if (mode &&
                 strchr(mode, '!'))
-                disk->shared = true;
+                disk->src->shared = true;

             if (VIR_REALLOC_N(def->disks, def->ndisks+1) < 0)
                 goto error;
@@ -1321,7 +1321,7 @@ xenParseSxpr(const struct sexpr *root,
                 goto error;
             }
             disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
-            disk->readonly = true;
+            disk->src->readonly = true;

             if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0) {
                 virDomainDiskDefFree(disk);
@@ -1818,9 +1818,9 @@ xenFormatSxprDisk(virDomainDiskDefPtr def,
         }
     }

-    if (def->readonly)
+    if (def->src->readonly)
         virBufferAddLit(buf, "(mode 'r')");
-    else if (def->shared)
+    else if (def->src->shared)
         virBufferAddLit(buf, "(mode 'w!')");
     else
         virBufferAddLit(buf, "(mode 'w')");
diff --git a/src/xenxs/xen_xm.c b/src/xenxs/xen_xm.c
index 2cd6d4c..6349d17 100644
--- a/src/xenxs/xen_xm.c
+++ b/src/xenxs/xen_xm.c
@@ -625,10 +625,10 @@ xenParseXM(virConfPtr conf, int xendConfigVersion,

             if (STREQ(head, "r") ||
                 STREQ(head, "ro"))
-                disk->readonly = true;
+                disk->src->readonly = true;
             else if ((STREQ(head, "w!")) ||
                      (STREQ(head, "!")))
-                disk->shared = true;
+                disk->src->shared = true;

             /* Maintain list in sorted order according to target device name */
             if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0)
@@ -656,7 +656,7 @@ xenParseXM(virConfPtr conf, int xendConfigVersion,
             if (VIR_STRDUP(disk->dst, "hdc") < 0)
                 goto cleanup;
             disk->bus = VIR_DOMAIN_DISK_BUS_IDE;
-            disk->readonly = true;
+            disk->src->readonly = true;

             if (VIR_APPEND_ELEMENT(def->disks, def->ndisks, disk) < 0)
                 goto cleanup;
@@ -1249,9 +1249,9 @@ xenFormatXMDisk(virConfValuePtr list,
     if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
         virBufferAddLit(&buf, ":cdrom");

-    if (disk->readonly)
+    if (disk->src->readonly)
         virBufferAddLit(&buf, ",r");
-    else if (disk->shared)
+    else if (disk->src->shared)
         virBufferAddLit(&buf, ",!");
     else
         virBufferAddLit(&buf, ",w");
-- 
1.9.3




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