Return-Path: Received: from merit-proxy01.merit.edu ([207.75.116.193]:51979 "EHLO merit-proxy01.merit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933708Ab1IJRlm (ORCPT ); Sat, 10 Sep 2011 13:41:42 -0400 From: Jim Rees To: Benny Halevy Cc: linux-nfs@vger.kernel.org, peter honeyman Subject: [PATCH 3/3] pNFS: make _set_lo_fail generic Date: Sat, 10 Sep 2011 13:41:35 -0400 Message-Id: <1315676495-3689-4-git-send-email-rees@umich.edu> In-Reply-To: <1315676495-3689-1-git-send-email-rees@umich.edu> References: <1315676495-3689-1-git-send-email-rees@umich.edu> Sender: linux-nfs-owner@vger.kernel.org List-ID: Content-Type: text/plain MIME-Version: 1.0 From: Peng Tao file layout and block layout both use it to set mark layout io failure bit. So make it generic. Signed-off-by: Peng Tao Signed-off-by: Jim Rees --- fs/nfs/blocklayout/blocklayout.c | 17 +++-------------- fs/nfs/nfs4filelayout.c | 19 +++---------------- fs/nfs/pnfs.c | 12 ++++++++++++ fs/nfs/pnfs.h | 1 + 4 files changed, 19 insertions(+), 30 deletions(-) diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 51f70f0..2c2dca9 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -176,17 +176,6 @@ retry: return bio; } -static void bl_set_lo_fail(struct pnfs_layout_segment *lseg) -{ - if (lseg->pls_range.iomode == IOMODE_RW) { - dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__); - set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); - } else { - dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__); - set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); - } -} - /* This is basically copied from mpage_end_io_read */ static void bl_end_io_read(struct bio *bio, int err) { @@ -206,7 +195,7 @@ static void bl_end_io_read(struct bio *bio, int err) if (!uptodate) { if (!rdata->pnfs_error) rdata->pnfs_error = -EIO; - bl_set_lo_fail(rdata->lseg); + pnfs_set_lo_fail(rdata->lseg); } bio_put(bio); put_parallel(par); @@ -370,7 +359,7 @@ static void bl_end_io_write_zero(struct bio *bio, int err) if (!uptodate) { if (!wdata->pnfs_error) wdata->pnfs_error = -EIO; - bl_set_lo_fail(wdata->lseg); + pnfs_set_lo_fail(wdata->lseg); } bio_put(bio); put_parallel(par); @@ -386,7 +375,7 @@ static void bl_end_io_write(struct bio *bio, int err) if (!uptodate) { if (!wdata->pnfs_error) wdata->pnfs_error = -EIO; - bl_set_lo_fail(wdata->lseg); + pnfs_set_lo_fail(wdata->lseg); } bio_put(bio); put_parallel(par); diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index e8915d4..4c78c62 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -77,19 +77,6 @@ filelayout_get_dserver_offset(struct pnfs_layout_segment *lseg, loff_t offset) BUG(); } -/* For data server errors we don't recover from */ -static void -filelayout_set_lo_fail(struct pnfs_layout_segment *lseg) -{ - if (lseg->pls_range.iomode == IOMODE_RW) { - dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__); - set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); - } else { - dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__); - set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); - } -} - static int filelayout_async_handle_error(struct rpc_task *task, struct nfs4_state *state, struct nfs_client *clp, @@ -145,7 +132,7 @@ static int filelayout_read_done_cb(struct rpc_task *task, dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", __func__, data->ds_clp, data->ds_clp->cl_session); if (reset) { - filelayout_set_lo_fail(data->lseg); + pnfs_set_lo_fail(data->lseg); nfs4_reset_read(task, data); clp = NFS_SERVER(data->inode)->nfs_client; } @@ -221,7 +208,7 @@ static int filelayout_write_done_cb(struct rpc_task *task, dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n", __func__, data->ds_clp, data->ds_clp->cl_session); if (reset) { - filelayout_set_lo_fail(data->lseg); + pnfs_set_lo_fail(data->lseg); nfs4_reset_write(task, data); clp = NFS_SERVER(data->inode)->nfs_client; } else @@ -256,7 +243,7 @@ static int filelayout_commit_done_cb(struct rpc_task *task, __func__, data->ds_clp, data->ds_clp->cl_session); if (reset) { prepare_to_resend_writes(data); - filelayout_set_lo_fail(data->lseg); + pnfs_set_lo_fail(data->lseg); } else nfs_restart_rpc(task, data->ds_clp); return -EAGAIN; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 5ac7a78..c02be6c 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1384,6 +1384,18 @@ static void pnfs_list_write_lseg(struct inode *inode, struct list_head *listp) } } +void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg) +{ + if (lseg->pls_range.iomode == IOMODE_RW) { + dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__); + set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags); + } else { + dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__); + set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags); + } +} +EXPORT_SYMBOL_GPL(pnfs_set_lo_fail); + void pnfs_set_layoutcommit(struct nfs_write_data *wdata) { diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index bc1eed5..5c83ce3 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -182,6 +182,7 @@ int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc); void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *, struct nfs_page *); int pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc); bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req); +void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg); int pnfs_layout_process(struct nfs4_layoutget *lgp); void pnfs_free_lseg_list(struct list_head *tmp_list); void pnfs_destroy_layout(struct nfs_inode *); -- 1.7.4.1