Return-Path: Received: from mx141.netapp.com ([216.240.21.12]:2773 "EHLO mx141.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752299AbdI1R3w (ORCPT ); Thu, 28 Sep 2017 13:29:52 -0400 From: Olga Kornievskaia To: CC: Subject: [PATCH v4 09/10] NFSD support OFFLOAD_STATUS Date: Thu, 28 Sep 2017 13:29:44 -0400 Message-ID: <20170928172945.50780-10-kolga@netapp.com> In-Reply-To: <20170928172945.50780-1-kolga@netapp.com> References: <20170928172945.50780-1-kolga@netapp.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-nfs-owner@vger.kernel.org List-ID: Update number of bytes copied in the copy state and query that value under lock if OFFLOAD_STATUS operation received. Signed-off-by: Olga Kornievskaia --- fs/nfsd/nfs4proc.c | 16 +++++++++++++++- fs/nfsd/state.h | 1 + 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index f4f3d93..74bfa4b 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1154,6 +1154,8 @@ static int _nfsd_copy_file_range(struct nfsd4_copy *copy) if (!copy->cp_synchronous) { spin_lock(©->cps->cp_lock); cancelled = copy->cps->cp_cancelled; + copy->cps->cp_bytes_copied = + copy->cp_res.wr_bytes_written; spin_unlock(©->cps->cp_lock); } } while (bytes_total > 0 && !copy->cp_synchronous && !cancelled); @@ -1321,7 +1323,19 @@ static void nfsd4_do_async_copy(struct work_struct *work) struct nfsd4_compound_state *cstate, union nfsd4_op_u *u) { - return nfserr_notsupp; + struct nfsd4_offload_status *os = &u->offload_status; + struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id); + __be32 status; + struct nfs4_cp_state *state = NULL; + + status = find_cp_state(nn, &os->stateid, &state); + + if (state) { + spin_lock(&state->cp_lock); + os->count = state->cp_bytes_copied; + spin_unlock(&state->cp_lock); + } + return status; } static __be32 diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 7a070d5..c31025c 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -113,6 +113,7 @@ struct nfs4_cp_state { struct nfs4_stid *cp_p_stid; /* pointer to parent */ bool cp_cancelled; /* copy cancelled */ spinlock_t cp_lock; + ssize_t cp_bytes_copied;/* copy progress */ }; /* -- 1.8.3.1