Add overlay(-O) mount option support

[zfs.git] / cmd / zfs / zfs_main.c

diff --git a/cmd/zfs/zfs_main.c b/cmd/zfs/zfs_main.c
index a052be5..518000c 100644 (file)
--- a/cmd/zfs/zfs_main.c
+++ b/cmd/zfs/zfs_main.c
@@ -5469,7 +5469,7 @@ share_mount(int op, int argc, char **argv)
        int flags = 0;
 
        /* check options */
-       while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:" : "a"))
+       while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a"))
            != -1) {
                switch (c) {
                case 'a':
@@ -5491,7 +5491,9 @@ share_mount(int op, int argc, char **argv)
                        /* option validation is done later */
                        append_options(options, optarg);
                        break;
-
+               case 'O':
+                       flags |= MS_OVERLAY;
+                       break;
                case ':':
                        (void) fprintf(stderr, gettext("missing argument for "
                            "'%c' option\n"), optopt);