Commit ef44c8ab authored by Hongbo Li's avatar Hongbo Li Committed by Christian Brauner
Browse files

fs: fsconfig: intercept non-new mount API in advance for FSCONFIG_CMD_CREATE_EXCL command 



fsconfig with FSCONFIG_CMD_CREATE_EXCL command requires the new mount api,
here we should return -EOPNOTSUPP in advance to avoid extra procedure.

Signed-off-by: default avatarHongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240522030422.315892-1-lihongbo22@huawei.com


Reviewed-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 3aa63a56

fs/fsopen.c

+1 −4
Original line number Diff line number Diff line
@@ -220,10 +220,6 @@ static int vfs_cmd_create(struct fs_context *fc, bool exclusive) 
	if (!mount_capable(fc))

		return -EPERM;



	/* require the new mount api */

	if (exclusive && fc->ops == &legacy_fs_context_ops)

		return -EOPNOTSUPP;



	fc->phase = FS_CONTEXT_CREATING;

	fc->exclusive = exclusive;
@@ -411,6 +407,7 @@ SYSCALL_DEFINE5(fsconfig, 
		case FSCONFIG_SET_PATH:

		case FSCONFIG_SET_PATH_EMPTY:

		case FSCONFIG_SET_FD:

		case FSCONFIG_CMD_CREATE_EXCL:

			ret = -EOPNOTSUPP;

			goto out_f;

		}