== sanity test 255b: check 'lfs ladvise -a dontneed' ===== 05:27:25 (1743499645)
lfs ladvise: cannot give advice: Operation not supported (95)
ladvise: cannot give advice 'dontneed' to file '/mnt/lustre/f255b.sanity': Operation not supported

 SKIP: sanity test_255b zfs-osd does not support 'ladvise dontneed'