/* * Encode a lock as part of an NLM call */ static __be32 * nlm4_encode_lock(__be32 *p, struct nlm_lock *lock) { struct file_lock *fl = &lock->fl; __s64 start, len; if (!(p = xdr_encode_string(p, lock->caller)) || !(p = nlm4_encode_fh(p, &lock->fh)) || !(p = nlm4_encode_oh(p, &lock->oh))) return NULL; if (fl->fl_start > NLM4_OFFSET_MAX || (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX)) return NULL; *p++ = htonl(lock->svid); start = loff_t_to_s64(fl->fl_start); if (fl->fl_end == OFFSET_MAX) len = 0; else len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1); p = xdr_encode_hyper(p, start); p = xdr_encode_hyper(p, len); return p; }
static void nlm4_compute_offsets(const struct nlm_lock *lock, u64 *l_offset, u64 *l_len) { const struct file_lock *fl = &lock->fl; BUG_ON(fl->fl_start > NLM4_OFFSET_MAX); BUG_ON(fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX); *l_offset = loff_t_to_s64(fl->fl_start); if (fl->fl_end == OFFSET_MAX) *l_len = 0; else *l_len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1); }
/* * Encode result of a TEST/TEST_MSG call */ static __be32 * nlm4_encode_testres(__be32 *p, struct nlm_res *resp) { s64 start, len; dprintk("xdr: before encode_testres (p %p resp %p)\n", p, resp); if (!(p = nlm4_encode_cookie(p, &resp->cookie))) return NULL; *p++ = resp->status; if (resp->status == nlm_lck_denied) { struct file_lock *fl = &resp->lock.fl; *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one; *p++ = htonl(resp->lock.svid); /* Encode owner handle. */ if (!(p = xdr_encode_netobj(p, &resp->lock.oh))) return NULL; start = loff_t_to_s64(fl->fl_start); if (fl->fl_end == OFFSET_MAX) len = 0; else len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1); p = xdr_encode_hyper(p, start); p = xdr_encode_hyper(p, len); dprintk("xdr: encode_testres (status %u pid %d type %d start %Ld end %Ld)\n", resp->status, (int)resp->lock.svid, fl->fl_type, (long long)fl->fl_start, (long long)fl->fl_end); } dprintk("xdr: after encode_testres (p %p resp %p)\n", p, resp); return p; }