btrfs-progs: add option c to show ogeneration

This will also pair the 'C' filter.

Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index f2744e8..f8ed2ff 100644 (file)
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -287,6 +287,7 @@ static const char * const cmd_subvol_list_usage[] = {
        "-a           print all the subvolumes in the filesystem and",
        "             distinguish absolute and relative path with respect",
        "             to the given <path>",
+       "-c           print the ogeneration of the subvolume",
        "-g           print the generation of the subvolume",
        "-o           print only subvolumes bellow specified path",
        "-u           print the uuid of subvolumes (and snapshots)",
@@ -331,7 +332,7 @@ static int cmd_subvol_list(int argc, char **argv)
        optind = 1;
        while(1) {
                c = getopt_long(argc, argv,
-                                   "agopqsurG:C:t", long_options, NULL);
+                                   "acgopqsurG:C:t", long_options, NULL);
                if (c < 0)
                        break;
 
@@ -342,6 +343,9 @@ static int cmd_subvol_list(int argc, char **argv)
                case 'a':
                        is_list_all = 1;
                        break;
+               case 'c':
+                       btrfs_list_setup_print_column(BTRFS_LIST_OGENERATION);
+                       break;
                case 'g':
                        btrfs_list_setup_print_column(BTRFS_LIST_GENERATION);
                        break;