== 0 data_version arg fails
setattr: data version must not be 0
Try `setattr --help' or `setattr --usage' for more information.
== args must specify size and offline
setattr: must provide size if using --offline option
Try `setattr --help' or `setattr --usage' for more information.
== only works on regular files
failed to open '/mnt/test/test/setattr_more/dir': Is a directory (21)
scoutfs: setattr failed: Is a directory (21)
setattr_more ioctl failed on '/mnt/test/test/setattr_more/char': Inappropriate ioctl for device (25)
scoutfs: setattr failed: Inappropriate ioctl for device (25)
== non-zero file size fails
setattr_more ioctl failed on '/mnt/test/test/setattr_more/file': Invalid argument (22)
scoutfs: setattr failed: Invalid argument (22)
== non-zero file data_version fails
setattr_more ioctl failed on '/mnt/test/test/setattr_more/file': Invalid argument (22)
scoutfs: setattr failed: Invalid argument (22)
== large size is set
578437695752307201
== large data_version is set
578437695752307201
== large ctime is set
1972-02-19 00:06:25.999999999 +0000
== large offline extents are created
0: offset: 0 0 length: 10007 flags: O.L
extents: 1
== correct offline extent length
976563
== omitting data_version should not fail