Quoting Jeff Layton (jlayton(a)redhat.com):
 On Sat, 2018-10-06 at 12:44 +0200, Stefan Kooman wrote:
 > Hi list,
 > 
 > When building nfs-ganesha 2.7 I see the following warning messages:
 > 
 > -- Looking for ceph_ll_fallocate in cephfs - not found
 > Cannot find ceph_ll_fallocate. No ALLOCATE or DEALLOCATE support!
 > -- Looking for ceph_abort_conn in cephfs
 > -- Looking for ceph_abort_conn in cephfs - not found
 > Cannot find ceph_abort_conn. FSAL_CEPH will not leave session intact on
 > clean shutdown.
 > 
 > libcephfs-dev is installed (Mimic 13.2.2) ... 
 > 
 > What version of libcephfs-dev does nfs-ganesha-2.7 requires to build
 > support for ceph_ll_fallocate?
 
 It got added this summer. See:
 
 	
http://tracker.ceph.com/issues/24893 
Thanks. I Just checked, but it didn't made 14.0.0. It's in master. Well, then
nfs-ganesha will get support for this when Ceph nautilus comes out.
Gr. Stefan
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