diff options
Diffstat (limited to 'libbtrfsutil/btrfsutil.h')
-rw-r--r-- | libbtrfsutil/btrfsutil.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/libbtrfsutil/btrfsutil.h b/libbtrfsutil/btrfsutil.h index ab96f444..76ab06b6 100644 --- a/libbtrfsutil/btrfsutil.h +++ b/libbtrfsutil/btrfsutil.h @@ -300,6 +300,8 @@ enum btrfs_util_error btrfs_util_get_subvolume_read_only_fd(int fd, bool *ret); * @path: Subvolume path. * @read_only: New value of read-only flag. * + * This requires appropriate privilege (CAP_SYS_ADMIN). + * * Return: %BTRFS_UTIL_OK on success, non-zero error code on failure. */ enum btrfs_util_error btrfs_util_set_subvolume_read_only(const char *path, @@ -312,6 +314,47 @@ enum btrfs_util_error btrfs_util_set_subvolume_read_only(const char *path, enum btrfs_util_error btrfs_util_set_subvolume_read_only_fd(int fd, bool read_only); +/** + * btrfs_util_get_default_subvolume() - Get the default subvolume for a + * filesystem. + * @path: Path on a Btrfs filesystem. + * @id_ret: Returned subvolume ID. + * + * This requires appropriate privilege (CAP_SYS_ADMIN). + * + * Return: %BTRFS_UTIL_OK on success, non-zero error code on failure. + */ +enum btrfs_util_error btrfs_util_get_default_subvolume(const char *path, + uint64_t *id_ret); + +/** + * btrfs_util_get_default_subvolume_fd() - See + * btrfs_util_get_default_subvolume(). + */ +enum btrfs_util_error btrfs_util_get_default_subvolume_fd(int fd, + uint64_t *id_ret); + +/** + * btrfs_util_set_default_subvolume() - Set the default subvolume for a + * filesystem. + * @path: Path in a Btrfs filesystem. This may be any path in the filesystem; it + * does not have to refer to a subvolume unless @id is zero. + * @id: ID of subvolume to set as the default. If zero is given, the subvolume + * ID of @path is used. + * + * This requires appropriate privilege (CAP_SYS_ADMIN). + * + * Return: %BTRFS_UTIL_OK on success, non-zero error code on failure. + */ +enum btrfs_util_error btrfs_util_set_default_subvolume(const char *path, + uint64_t id); + +/** + * btrfs_util_set_default_subvolume_fd() - See + * btrfs_util_set_default_subvolume(). + */ +enum btrfs_util_error btrfs_util_set_default_subvolume_fd(int fd, uint64_t id); + struct btrfs_util_qgroup_inherit; /** |