libvirt/SOURCES/libvirt-qemu-store-complete-agent-filesystem-information.patch

From 668555bc90e36fd571ff3ac5aa798e951a84ee19 Mon Sep 17 00:00:00 2001
Message-Id: <668555bc90e36fd571ff3ac5aa798e951a84ee19@dist-git>
From: Jonathon Jongsma <jjongsma@redhat.com>
Date: Thu, 20 Feb 2020 10:52:24 -0600
Subject: [PATCH] qemu: store complete agent filesystem information
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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In an effort to avoid holding both an agent and normal job at the same
time, we shouldn't access the vm definition from within qemu_agent.c
(i.e. while the agent job is being held). In preparation, we need to
store the full filesystem disk information in qemuAgentDiskInfo.  In a
following commit, we can pass this information back to the caller and
the caller can search the vm definition to match the filsystem disk to
an alias.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit bdb8a800b4920cf9184fd2fd117b17c67ba74dfb)
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1759566
Message-Id: <20200220165227.11491-3-jjongsma@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 src/qemu/qemu_agent.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c
index 0f099f3b2a..077b5538de 100644
--- a/src/qemu/qemu_agent.c
+++ b/src/qemu/qemu_agent.c
@@ -1849,6 +1849,11 @@ typedef qemuAgentDiskInfo *qemuAgentDiskInfoPtr;
 struct _qemuAgentDiskInfo {
     char *alias;
     char *serial;
+    virPCIDeviceAddress pci_controller;
+    char *bus_type;
+    unsigned int bus;
+    unsigned int target;
+    unsigned int unit;
     char *devnode;
 };
 
@@ -1872,6 +1877,7 @@ qemuAgentDiskInfoFree(qemuAgentDiskInfoPtr info)
 
     VIR_FREE(info->serial);
     VIR_FREE(info->alias);
+    VIR_FREE(info->bus_type);
     VIR_FREE(info->devnode);
     VIR_FREE(info);
 }
@@ -1952,10 +1958,6 @@ qemuAgentGetFSInfoFillDisks(virJSONValuePtr jsondisks,
         qemuAgentDiskInfoPtr disk;
         virDomainDiskDefPtr diskDef;
         const char *val;
-        unsigned int bus;
-        unsigned int target;
-        unsigned int unit;
-        virPCIDeviceAddress pci_address;
 
         if (!jsondisk) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
@@ -1969,6 +1971,9 @@ qemuAgentGetFSInfoFillDisks(virJSONValuePtr jsondisks,
             return -1;
         disk = fsinfo->disks[i];
 
+        if ((val = virJSONValueObjectGetString(jsondisk, "bus-type")))
+            disk->bus_type = g_strdup(val);
+
         if ((val = virJSONValueObjectGetString(jsondisk, "serial")))
             disk->serial = g_strdup(val);
 
@@ -1985,9 +1990,9 @@ qemuAgentGetFSInfoFillDisks(virJSONValuePtr jsondisks,
             } \
         } while (0)
 
-        GET_DISK_ADDR(jsondisk, &bus, "bus");
-        GET_DISK_ADDR(jsondisk, &target, "target");
-        GET_DISK_ADDR(jsondisk, &unit, "unit");
+        GET_DISK_ADDR(jsondisk, &disk->bus, "bus");
+        GET_DISK_ADDR(jsondisk, &disk->target, "target");
+        GET_DISK_ADDR(jsondisk, &disk->unit, "unit");
 
         if (!(pci = virJSONValueObjectGet(jsondisk, "pci-controller"))) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
@@ -1996,18 +2001,17 @@ qemuAgentGetFSInfoFillDisks(virJSONValuePtr jsondisks,
             return -1;
         }
 
-        GET_DISK_ADDR(pci, &pci_address.domain, "domain");
-        GET_DISK_ADDR(pci, &pci_address.bus, "bus");
-        GET_DISK_ADDR(pci, &pci_address.slot, "slot");
-        GET_DISK_ADDR(pci, &pci_address.function, "function");
+        GET_DISK_ADDR(pci, &disk->pci_controller.domain, "domain");
+        GET_DISK_ADDR(pci, &disk->pci_controller.bus, "bus");
+        GET_DISK_ADDR(pci, &disk->pci_controller.slot, "slot");
+        GET_DISK_ADDR(pci, &disk->pci_controller.function, "function");
 
 #undef GET_DISK_ADDR
-
         if (!(diskDef = virDomainDiskByAddress(vmdef,
-                                               &pci_address,
-                                               bus,
-                                               target,
-                                               unit)))
+                                               &disk->pci_controller,
+                                               disk->bus,
+                                               disk->target,
+                                               disk->unit)))
             continue;
 
         disk->alias = g_strdup(diskDef->dst);
-- 
2.25.0