[PATCH 2/2] btrfs-progs: qgroup: remove unused btrfs_qgroup_inherit_add_group()

[Sidong Yang <realwakka@gmail.com>]

The function btrfs_qgroup_inherit_add_group() was used for options in
create subvolume '-c' or snapshot '-c' or '-x' command. These options
are deleted and the function is not needed everywhere now. So we can
delete it.

Signed-off-by: Sidong Yang <realwakka@gmail.com>
---
 cmds/qgroup.c | 41 -----------------------------------------
 cmds/qgroup.h |  2 --
 2 files changed, 43 deletions(-)

diff --git a/cmds/qgroup.c b/cmds/qgroup.c
index 139dca97..3f59ba05 100644
--- a/cmds/qgroup.c
+++ b/cmds/qgroup.c
@@ -1477,47 +1477,6 @@ int btrfs_qgroup_inherit_add_group(struct btrfs_qgroup_inherit **inherit, char *
 	return 0;
 }
 
-int btrfs_qgroup_inherit_add_copy(struct btrfs_qgroup_inherit **inherit, char *arg,
-			    int type)
-{
-	int ret;
-	u64 qgroup_src;
-	u64 qgroup_dst;
-	char *p;
-	int pos = 0;
-
-	p = strchr(arg, ':');
-	if (!p) {
-bad:
-		error("invalid copy specification, missing separator :");
-		return -EINVAL;
-	}
-	*p = 0;
-	qgroup_src = parse_qgroupid_or_path(arg);
-	qgroup_dst = parse_qgroupid_or_path(p + 1);
-	*p = ':';
-
-	if (!qgroup_src || !qgroup_dst)
-		goto bad;
-
-	if (*inherit)
-		pos = (*inherit)->num_qgroups +
-		      (*inherit)->num_ref_copies * 2 * type;
-
-	ret = qgroup_inherit_realloc(inherit, 2, pos);
-	if (ret)
-		return ret;
-
-	(*inherit)->qgroups[pos++] = qgroup_src;
-	(*inherit)->qgroups[pos++] = qgroup_dst;
-
-	if (!type)
-		++(*inherit)->num_ref_copies;
-	else
-		++(*inherit)->num_excl_copies;
-
-	return 0;
-}
 static const char * const qgroup_cmd_group_usage[] = {
 	"btrfs qgroup <command> [options] <path>",
 	NULL
diff --git a/cmds/qgroup.h b/cmds/qgroup.h
index 69b8c11f..f30cb8a8 100644
--- a/cmds/qgroup.h
+++ b/cmds/qgroup.h
@@ -38,8 +38,6 @@ struct btrfs_qgroup_stats {
 
 int btrfs_qgroup_inherit_size(struct btrfs_qgroup_inherit *p);
 int btrfs_qgroup_inherit_add_group(struct btrfs_qgroup_inherit **inherit, char *arg);
-int btrfs_qgroup_inherit_add_copy(struct btrfs_qgroup_inherit **inherit, char *arg,
-			    int type);
 int btrfs_qgroup_query(int fd, u64 qgroupid, struct btrfs_qgroup_stats *stats);
 
 #endif
-- 
2.25.1