[PATCH v2 1/2] btrfs-progs: subvolme: remove unused options for create and snapshot

[Sidong Yang <realwakka@gmail.com>]

There are options '-c' in create subvolume and '-c' and '-x' in
snapshot. And the codes about them is there, but not in the manual or
help. These options allow us to directly copy qgroup numbers from other
subvolumes when creating subvolume. This codes should be removed to
avoid confusion.

Signed-off-by: Sidong Yang <realwakka@gmail.com>
---
v2: add more explanation for removing options in changelog
---
 cmds/subvolume.c | 25 ++-----------------------
 1 file changed, 2 insertions(+), 23 deletions(-)

diff --git a/cmds/subvolume.c b/cmds/subvolume.c
index fbf56566..408aebee 100644
--- a/cmds/subvolume.c
+++ b/cmds/subvolume.c
@@ -108,18 +108,11 @@ static int cmd_subvol_create(const struct cmd_struct *cmd,
 
 	optind = 0;
 	while (1) {
-		int c = getopt(argc, argv, "c:i:");
+		int c = getopt(argc, argv, "i:");
 		if (c < 0)
 			break;
 
 		switch (c) {
-		case 'c':
-			res = btrfs_qgroup_inherit_add_copy(&inherit, optarg, 0);
-			if (res) {
-				retval = res;
-				goto out;
-			}
-			break;
 		case 'i':
 			res = btrfs_qgroup_inherit_add_group(&inherit, optarg);
 			if (res) {
@@ -541,18 +534,11 @@ static int cmd_subvol_snapshot(const struct cmd_struct *cmd,
 	memset(&args, 0, sizeof(args));
 	optind = 0;
 	while (1) {
-		int c = getopt(argc, argv, "c:i:r");
+		int c = getopt(argc, argv, "i:r");
 		if (c < 0)
 			break;
 
 		switch (c) {
-		case 'c':
-			res = btrfs_qgroup_inherit_add_copy(&inherit, optarg, 0);
-			if (res) {
-				retval = res;
-				goto out;
-			}
-			break;
 		case 'i':
 			res = btrfs_qgroup_inherit_add_group(&inherit, optarg);
 			if (res) {
@@ -563,13 +549,6 @@ static int cmd_subvol_snapshot(const struct cmd_struct *cmd,
 		case 'r':
 			readonly = 1;
 			break;
-		case 'x':
-			res = btrfs_qgroup_inherit_add_copy(&inherit, optarg, 1);
-			if (res) {
-				retval = res;
-				goto out;
-			}
-			break;
 		default:
 			usage_unknown_option(cmd, argv);
 		}
-- 
2.25.1