Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:44111 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1032043Ab2COSk6 (ORCPT ); Thu, 15 Mar 2012 14:40:58 -0400 From: andros@netapp.com To: trond.myklebust@netapp.com Cc: linux-nfs@vger.kernel.org, Andy Adamson Subject: [PATCH Version 1 03/11] NFSv4.1 cleanup filelayout invalid layout handling Date: Thu, 15 Mar 2012 14:40:42 -0400 Message-Id: <1331836850-5195-4-git-send-email-andros@netapp.com> In-Reply-To: <1331836850-5195-1-git-send-email-andros@netapp.com> References: <1331836850-5195-1-git-send-email-andros@netapp.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: From: Andy Adamson The invalid layout bits are should only be used to block LAYOUTGETs. Do not invalidate a layout on deviceid invalidation. Do not invalidate a layout on un-handled READ, WRITE, COMMIT errors. Signed-off-by: Andy Adamson --- fs/nfs/nfs4filelayout.c | 26 ++++++-------------------- 1 files changed, 6 insertions(+), 20 deletions(-) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index e1c0670..b0b775c 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -187,10 +187,8 @@ static int filelayout_read_done_cb(struct rpc_task *task, data->ds_clp, &reset) == -EAGAIN) { dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", __func__, data->ds_clp, data->ds_clp->cl_session); - if (reset) { - pnfs_set_lo_fail(data->lseg); + if (reset) filelayout_reset_read(task, data); - } rpc_restart_call_prepare(task); return -EAGAIN; } @@ -267,10 +265,8 @@ static int filelayout_write_done_cb(struct rpc_task *task, data->ds_clp, &reset) == -EAGAIN) { dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", __func__, data->ds_clp, data->ds_clp->cl_session); - if (reset) { - pnfs_set_lo_fail(data->lseg); + if (reset) filelayout_reset_write(task, data); - } rpc_restart_call_prepare(task); return -EAGAIN; } @@ -299,10 +295,9 @@ static int filelayout_commit_done_cb(struct rpc_task *task, data->ds_clp, &reset) == -EAGAIN) { dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", __func__, data->ds_clp, data->ds_clp->cl_session); - if (reset) { + if (reset) prepare_to_resend_writes(data); - pnfs_set_lo_fail(data->lseg); - } else + else rpc_restart_call_prepare(task); return -EAGAIN; } @@ -393,12 +388,8 @@ filelayout_read_pagelist(struct nfs_read_data *data) j = nfs4_fl_calc_j_index(lseg, offset); idx = nfs4_fl_calc_ds_index(lseg, j); ds = nfs4_fl_prepare_ds(lseg, idx); - if (!ds) { - /* Either layout fh index faulty, or ds connect failed */ - set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); - set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); + if (!ds) return PNFS_NOT_ATTEMPTED; - } dprintk("%s USE DS: %s\n", __func__, ds->ds_remotestr); /* No multipath support. Use first DS */ @@ -432,11 +423,8 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync) j = nfs4_fl_calc_j_index(lseg, offset); idx = nfs4_fl_calc_ds_index(lseg, j); ds = nfs4_fl_prepare_ds(lseg, idx); - if (!ds) { - set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); - set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); + if (!ds) return PNFS_NOT_ATTEMPTED; - } dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s\n", __func__, data->inode->i_ino, sync, (size_t) data->args.count, offset, ds->ds_remotestr); @@ -890,8 +878,6 @@ static int filelayout_initiate_commit(struct nfs_write_data *data, int how) idx = calc_ds_index_from_commit(lseg, data->ds_commit_index); ds = nfs4_fl_prepare_ds(lseg, idx); if (!ds) { - set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); - set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); prepare_to_resend_writes(data); data->mds_ops->rpc_release(data); return -EAGAIN; -- 1.7.6.4