[Libguestfs] [PATCH v2] labels: return ENOTSUP if could not set label for specific fs

Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com&gt; --- daemon/labels.c | 6 ++---- generator/actions.ml | 4 ++++ 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/daemon/labels.c b/daemon/labels.c index 57c6e93..130f1db 100644 --- a/daemon/labels.c +++ b/daemon/labels.c @@ -85,11 +85,9 @@ do_set_label (const mountable_t *mountable, const char *label) else if (STREQ (vfs_type, "xfs")) r = xfslabel (mountable->device, label); - else { - reply_with_error ("don't know how to set the label for '%s' filesystems", + else + NOT_SUPPORTED(-1, "don't know how to set the label for '%s' filesystems", vfs_type); - r = -1; - } return r; } diff --git a/generator/actions.ml b/generator/actions.ml index 8136d7b..24bcae5 100644 --- a/generator/actions.ml +++ b/generator/actions.ml @@ -9947,6 +9947,10 @@ The label is limited to 11 bytes. =back +If there is no support for changing the UUID +for the type of the specified filesystem, +set_label will fail and set errno as ENOTSUP. + To read the label on a filesystem, call C<guestfs_vfs_label>." }; { defaults with -- 2.1.0