filename too long (pjd-fstest on centos5 with ceph 0.20.2)

[Thomas Mueller <thomas@chaschperli.ch>]

hi 

i'm doing some testing. i've ran pjd-fstest. on ceph (kclient) 
mountpoints there are many "file name too long" messages. 

example error message:
mkdir: `_xxxxxx-veryveryveryverylongpath/x': File name too long


fstest results:

Failed Test                   Stat Wstat Total Fail  Failed  List of Failed
-------------------------------------------------------------------------------
/tmp/fstest/tests/mkdir/00.t                36    5  13.89%  30-34
/tmp/fstest/tests/mkfifo/00.t               36    5  13.89%  30-34
/tmp/fstest/tests/open/00.t                 47    5  10.64%  30-34
Failed 3/184 test scripts, 98.37% okay. 15/1957 subtests failed, 99.23% 
okay.


if I run fstest on the local filesystem it completes without errors - so 
the "filename too long" seems to be a ceph specific error.

- Thomas

Env:
- 4x osd, 1x mds, 1x mon, 1x kclient
- ceph 0.20.2, ceph kclient 2.6.34, Cento5, pjd-fstest-20080816