Symbol: zfs_groupmember
usr/src/uts/common/fs/zfs/sys/zfs_fuid.h
118
extern boolean_t zfs_groupmember(zfsvfs_t *, uint64_t, cred_t *);
usr/src/uts/common/fs/zfs/zfs_acl.c
2225
checkit = zfs_groupmember(zfsvfs, who, cr);
usr/src/uts/common/fs/zfs/zfs_vnops.c
3255
zfs_groupmember(zfsvfs, vap->va_gid, cr);