Ceph » CephFS

When -1 is passed as value of UID/GID to chown()/lchown()/fchown() methods of
libcephfs.cc, it is implicitly converted to unsigned integer value. That's not
the case with cephfs.pyx; when -1 or any other negative value is passed the
compilation exits with following error -

OverflowError: can't convert negative value to gid_t 

Since Cython can't implicitly converty signed integer to unsigned integer
convert it, convert it explicitly. It is standard to pass -1 as value of
UID/GID to indicate that UID/GID value shouldn't be changed by call to
chown()/lchown()/fchown().

Introduced by: 65328aca31f2f5038cb602148120b9427370ed4f