nodeinfo: Add sysfs_prefix to nodeGetMemoryStats

Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.

src/bhyve/bhyve_driver.c

@@ -1121,7 +1121,7 @@ bhyveNodeGetMemoryStats(virConnectPtr conn,
     if (virNodeGetMemoryStatsEnsureACL(conn) < 0)
         return -1;
 
-    return nodeGetMemoryStats(cellNum, params, nparams, flags);
+    return nodeGetMemoryStats(NULL, cellNum, params, nparams, flags);
 }
 
 static int

src/lxc/lxc_driver.c

@@ -5486,7 +5486,7 @@ lxcNodeGetMemoryStats(virConnectPtr conn,
     if (virNodeGetMemoryStatsEnsureACL(conn) < 0)
         return -1;
 
-    return nodeGetMemoryStats(cellNum, params, nparams, flags);
+    return nodeGetMemoryStats(NULL, cellNum, params, nparams, flags);
 }
 
 

src/nodeinfo.c

@@ -1141,7 +1141,8 @@ int nodeGetCPUStats(int cpuNum ATTRIBUTE_UNUSED,
 #endif
 }
 
-int nodeGetMemoryStats(int cellNum ATTRIBUTE_UNUSED,
+int nodeGetMemoryStats(const char *sysfs_prefix ATTRIBUTE_UNUSED,
+                       int cellNum ATTRIBUTE_UNUSED,
                        virNodeMemoryStatsPtr params ATTRIBUTE_UNUSED,
                        int *nparams ATTRIBUTE_UNUSED,
                        unsigned int flags)
@@ -1151,6 +1152,7 @@ int nodeGetMemoryStats(int cellNum ATTRIBUTE_UNUSED,
 #ifdef __linux__
     {
         int ret;
+        const char *prefix = sysfs_prefix ? sysfs_prefix : SYSFS_SYSTEM_PATH;
         char *meminfo_path = NULL;
         FILE *meminfo;
         int max_node;
@@ -1170,7 +1172,7 @@ int nodeGetMemoryStats(int cellNum ATTRIBUTE_UNUSED,
             }
 
             if (virAsprintf(&meminfo_path, "%s/node/node%d/meminfo",
-                            SYSFS_SYSTEM_PATH, cellNum) < 0)
+                            prefix, cellNum) < 0)
                 return -1;
         }
         meminfo = fopen(meminfo_path, "r");

src/nodeinfo.h

@@ -33,7 +33,8 @@ int nodeGetCPUStats(int cpuNum,
                     virNodeCPUStatsPtr params,
                     int *nparams,
                     unsigned int flags);
-int nodeGetMemoryStats(int cellNum,
+int nodeGetMemoryStats(const char *sysfs_prefix,
+                       int cellNum,
                        virNodeMemoryStatsPtr params,
                        int *nparams,
                        unsigned int flags);

src/openvz/openvz_driver.c

@@ -2177,7 +2177,7 @@ openvzNodeGetMemoryStats(virConnectPtr conn ATTRIBUTE_UNUSED,
                          int *nparams,
                          unsigned int flags)
 {
-    return nodeGetMemoryStats(cellNum, params, nparams, flags);
+    return nodeGetMemoryStats(NULL, cellNum, params, nparams, flags);
 }
 
 

src/qemu/qemu_driver.c

@@ -18434,7 +18434,7 @@ qemuNodeGetMemoryStats(virConnectPtr conn,
     if (virNodeGetMemoryStatsEnsureACL(conn) < 0)
         return -1;
 
-    return nodeGetMemoryStats(cellNum, params, nparams, flags);
+    return nodeGetMemoryStats(NULL, cellNum, params, nparams, flags);
 }
 
 

src/uml/uml_driver.c

@@ -2810,7 +2810,7 @@ umlNodeGetMemoryStats(virConnectPtr conn,
     if (virNodeGetMemoryStatsEnsureACL(conn) < 0)
         return -1;
 
-    return nodeGetMemoryStats(cellNum, params, nparams, flags);
+    return nodeGetMemoryStats(NULL, cellNum, params, nparams, flags);
 }