[PATCH 09/11] btrfs-progs: tune: add noscan option

[Anand Jain <anand.jain@oracle.com>]

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
 tune/main.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tune/main.c b/tune/main.c
index 9a6223f4aa0c..fa49f1685e0f 100644
--- a/tune/main.c
+++ b/tune/main.c
@@ -143,6 +143,7 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 	bool to_extent_tree = false;
 	bool to_bg_tree = false;
 	bool to_fst = false;
+	bool noscan = false;
 	int csum_type = -1;
 	char *new_fsid_str = NULL;
 	int ret;
@@ -155,7 +156,8 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 		enum { GETOPT_VAL_CSUM = GETOPT_VAL_FIRST,
 		       GETOPT_VAL_ENABLE_BLOCK_GROUP_TREE,
 		       GETOPT_VAL_DISABLE_BLOCK_GROUP_TREE,
-		       GETOPT_VAL_ENABLE_FREE_SPACE_TREE };
+		       GETOPT_VAL_ENABLE_FREE_SPACE_TREE,
+		       GETOPT_VAL_NOSCAN };
 		static const struct option long_options[] = {
 			{ "help", no_argument, NULL, GETOPT_VAL_HELP},
 			{ "convert-to-block-group-tree", no_argument, NULL,
@@ -167,6 +169,7 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 #if EXPERIMENTAL
 			{ "csum", required_argument, NULL, GETOPT_VAL_CSUM },
 #endif
+			{ "noscan", no_argument, NULL, GETOPT_VAL_NOSCAN },
 			{ NULL, 0, NULL, 0 }
 		};
 		int c = getopt_long(argc, argv, "S:rxfuU:nmM:", long_options, NULL);
@@ -224,6 +227,10 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 			csum_type = parse_csum_type(optarg);
 			break;
 #endif
+		case GETOPT_VAL_NOSCAN:
+			ctree_flags |= OPEN_CTREE_NO_DEVICES;
+			noscan = true;
+			break;
 		case GETOPT_VAL_HELP:
 		default:
 			usage(&tune_cmd, c != GETOPT_VAL_HELP);
@@ -268,7 +275,7 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 	}
 
 	ret = check_mounted_where(fd, device, NULL, 0, NULL,
-				  SBREAD_IGNORE_FSID_MISMATCH, false);
+				  SBREAD_IGNORE_FSID_MISMATCH, noscan);
 	if (ret < 0) {
 		errno = -ret;
 		error("could not check mount status of %s: %m", device);
@@ -289,7 +296,6 @@ int BOX_MAIN(btrfstune)(int argc, char *argv[])
 		return 1;
 
 	root = open_ctree_fd(fd, device, 0, ctree_flags);
-
 	if (!root) {
 		error("open ctree failed");
 		return 1;
-- 
2.31.1