.SH DESCRIPTION
The group upcall file contains the path to an executable that, when
properly installed, is invoked to resolve a numeric UID to a group
-membership list. This utility should complete the mds_grp_downcall_data
-data structure (see Data structures) and write it to the
-/proc/fs/lustre/mds/mds-service/group_info pseudo-file.
+membership list.
.LP
.B l_getgroups
is the reference implementation of the user/group cache upcall
.SH FILES
-/proc/fs/lustre/mds/mds-service/group_upcall
+/{proc,sys}/fs/lustre/mds/mds-service/group_upcall
.SH SEE ALSO
Lustre Programming Interfaces section of Lustre Operations Manual.