fuse_lock_owner_id
inarg.lock_owner = fuse_lock_owner_id(fc, current->files);
inarg->lock_owner = fuse_lock_owner_id(fm->fc, owner);
inarg->owner = fuse_lock_owner_id(fc, fl->c.flc_owner);
ra->inarg.lock_owner = fuse_lock_owner_id(ff->fm->fc, id);
inarg.lock_owner = fuse_lock_owner_id(fm->fc, id);
ia->read.in.lock_owner = fuse_lock_owner_id(fm->fc, owner);
u64 fuse_lock_owner_id(struct fuse_conn *fc, fl_owner_t id);