Don't create backup and archive dirs till needed.

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.01.10 - 
 ================================
+  Don't create backup and archive dirs till needed.
   Reinstate full PV size when removing from VG.
   Support loopfiles for testing.
   Tidy lv_segment interface.

lib/device/dev-cache.c

@@ -49,7 +49,6 @@ static struct {
 } _cache;
 
 #define _alloc(x) pool_zalloc(_cache.mem, (x))
-#define _strdup(x) pool_strdup(_cache.mem, (x))
 #define _free(x) pool_free(_cache.mem, (x))
 
 static int _insert(const char *path, int rec);
@@ -70,14 +69,7 @@ struct device *dev_create_file(const char *filename, struct device *dev,
 				dbg_free(dev);
 				return NULL;
 			}
-			if (!(alias->str = dbg_strdup(filename))) {
+
-				log_error("filename strdup failed");
-				if (allocate) {
-					dbg_free(dev);
-					dbg_free(alias);
-				}
-				return NULL;
-			}
 			dev->flags = DEV_ALLOCED;
 		} else {
 			if (!(dev = _alloc(sizeof(*dev)))) {
@@ -86,19 +78,21 @@ struct device *dev_create_file(const char *filename, struct device *dev,
 			}
 			if (!(alias = _alloc(sizeof(*alias)))) {
 				log_error("struct str_list allocation failed");
-				dbg_free(dev);
+				_free(dev);
 				return NULL;
 			}
-			if (!(alias->str = _strdup(filename))) {
+		}
+	}
+
+	if (!(alias->str = dbg_strdup(filename))) {
 		log_error("filename strdup failed");
-				if (allocate) {
+		if (allocate && use_malloc) {
 			dbg_free(dev);
 			dbg_free(alias);
 		}
 		return NULL;
 	}
-		}
+
-	}
 	dev->flags |= DEV_REGULAR;
 	list_init(&dev->aliases);
 	list_add(&dev->aliases, &alias->list);

lib/format_text/archive.c

@@ -148,7 +148,7 @@ static struct list *_scan_archive(struct pool *mem,
 
 	/* Sort fails beyond 5-digit indexes */
 	if ((count = scandir(dir, &dirent, NULL, alphasort)) < 0) {
-		log_err("Couldn't scan archive directory.");
+		log_err("Couldn't scan the archive directory (%s).", dir);
 		return 0;
 	}
 
@@ -273,7 +273,7 @@ int archive_vg(struct volume_group *vg,
 	 * Now we want to rename this file to <vg>_index.vg.
 	 */
 	if (!(archives = _scan_archive(vg->cmd->mem, vg->name, dir))) {
-		log_err("Couldn't scan the archive directory (%s).", dir);
+		stack;
 		return 0;
 	}
 
@@ -349,7 +349,7 @@ int archive_list(struct cmd_context *cmd, const char *dir, const char *vgname)
 	struct archive_file *af;
 
 	if (!(archives = _scan_archive(cmd->mem, vgname, dir))) {
-		log_err("Couldn't scan the archive directory (%s).", dir);
+		stack;
 		return 0;
 	}
 

tools/archiver.c

@@ -36,9 +36,6 @@ int archive_init(const char *dir, unsigned int keep_days, unsigned int keep_min)
 	if (!*dir)
 		return 1;
 
-	if (!create_dir(dir))
-		return 0;
-
 	if (!(_archive_params.dir = dbg_strdup(dir))) {
 		log_error("Couldn't copy archive directory name.");
 		return 0;
@@ -106,6 +103,9 @@ int archive(struct volume_group *vg)
 		return 1;
 	}
 
+	if (!create_dir(_archive_params.dir))
+		return 0;
+
 	log_verbose("Archiving volume group \"%s\" metadata.", vg->name);
 	if (!__archive(vg)) {
 		log_error("Volume group \"%s\" metadata archive failed.",
@@ -134,9 +134,6 @@ int backup_init(const char *dir)
 	if (!*dir)
 		return 1;
 
-	if (!create_dir(dir))
-		return 0;
-
 	if (!(_backup_params.dir = dbg_strdup(dir))) {
 		log_error("Couldn't copy backup directory name.");
 		return 0;
@@ -189,6 +186,9 @@ int backup(struct volume_group *vg)
 		return 1;
 	}
 
+	if (!create_dir(_backup_params.dir))
+		return 0;
+
 	if (!__backup(vg)) {
 		log_error("Backup of volume group %s metadata failed.",
 			  vg->name);