intelrdt: factor common code in a new function

Signed-off-by: Giuseppe Scrivano <[email protected]>

Author: giuseppe

src/libcrun/intelrdt.c

@@ -167,6 +167,15 @@ compare_rdt_configurations (const char *a, const char *b)
   return 0;
 }
 
+static int
+get_resctrl_path (char **path, const char *file, const char *name, libcrun_error_t *err)
+{
+  if (file)
+    return append_paths (path, err, INTEL_RDT_MOUNT_POINT, name, file, NULL);
+  else
+    return append_paths (path, err, INTEL_RDT_MOUNT_POINT, name, NULL);
+}
+
 static int
 validate_rdt_configuration (const char *name, const char *l3_cache_schema, const char *mem_bw_schema, libcrun_error_t *err)
 {
@@ -175,7 +184,7 @@ validate_rdt_configuration (const char *name, const char *l3_cache_schema, const
   char *it, *end;
   int ret;
 
-  ret = append_paths (&path, err, INTEL_RDT_MOUNT_POINT, name, SCHEMATA_FILE, NULL);
+  ret = get_resctrl_path (&path, SCHEMATA_FILE, name, err);
   if (UNLIKELY (ret < 0))
     return ret;
 
@@ -258,7 +267,7 @@ resctl_create (const char *name, bool explicit_clos_id, bool *created, const cha
   if (ret == 0)
     return crun_make_error (err, 0, "the resctl file system is not mounted");
 
-  ret = append_paths (&path, err, INTEL_RDT_MOUNT_POINT, name, NULL);
+  ret = get_resctrl_path (&path, NULL, name, err);
   if (UNLIKELY (ret < 0))
     return ret;
 
@@ -300,7 +309,7 @@ resctl_move_task_to (const char *name, pid_t pid, libcrun_error_t *err)
   int len;
   int ret;
 
-  ret = append_paths (&path, err, INTEL_RDT_MOUNT_POINT, name, TASKS_FILE, NULL);
+  ret = get_resctrl_path (&path, TASKS_FILE, name, err);
   if (UNLIKELY (ret < 0))
     return ret;
 
@@ -325,7 +334,7 @@ resctl_update (const char *name, const char *l3_cache_schema, const char *mem_bw
   if (l3_cache_schema == NULL && mem_bw_schema == NULL && schemata == NULL)
     return 0;
 
-  ret = append_paths (&path, err, INTEL_RDT_MOUNT_POINT, name, SCHEMATA_FILE, NULL);
+  ret = get_resctrl_path (&path, SCHEMATA_FILE, name, err);
   if (UNLIKELY (ret < 0))
     return ret;
 
@@ -348,7 +357,7 @@ resctl_destroy (const char *name, libcrun_error_t *err)
   cleanup_free char *path = NULL;
   int ret;
 
-  ret = append_paths (&path, err, INTEL_RDT_MOUNT_POINT, name, NULL);
+  ret = get_resctrl_path (&path, NULL, name, err);
   if (UNLIKELY (ret < 0))
     return ret;