forked from luck/tmp_suning_uos_patched
pnfs: make _set_lo_fail generic
file layout and block layout both use it to set mark layout io failure bit. So make it generic. Signed-off-by: Peng Tao <peng_tao@emc.com> Signed-off-by: Jim Rees <rees@umich.edu> Cc: stable@kernel.org [3.0] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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760383f1ee
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1b0ae06877
@ -176,17 +176,6 @@ static struct bio *bl_add_page_to_bio(struct bio *bio, int npg, int rw,
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return bio;
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}
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static void bl_set_lo_fail(struct pnfs_layout_segment *lseg)
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{
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if (lseg->pls_range.iomode == IOMODE_RW) {
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dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
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} else {
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dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
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}
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}
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/* This is basically copied from mpage_end_io_read */
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static void bl_end_io_read(struct bio *bio, int err)
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{
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@ -206,7 +195,7 @@ static void bl_end_io_read(struct bio *bio, int err)
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if (!uptodate) {
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if (!rdata->pnfs_error)
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rdata->pnfs_error = -EIO;
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bl_set_lo_fail(rdata->lseg);
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pnfs_set_lo_fail(rdata->lseg);
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}
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bio_put(bio);
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put_parallel(par);
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@ -370,7 +359,7 @@ static void bl_end_io_write_zero(struct bio *bio, int err)
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if (!uptodate) {
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if (!wdata->pnfs_error)
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wdata->pnfs_error = -EIO;
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bl_set_lo_fail(wdata->lseg);
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pnfs_set_lo_fail(wdata->lseg);
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}
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bio_put(bio);
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put_parallel(par);
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@ -386,7 +375,7 @@ static void bl_end_io_write(struct bio *bio, int err)
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if (!uptodate) {
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if (!wdata->pnfs_error)
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wdata->pnfs_error = -EIO;
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bl_set_lo_fail(wdata->lseg);
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pnfs_set_lo_fail(wdata->lseg);
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}
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bio_put(bio);
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put_parallel(par);
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@ -77,19 +77,6 @@ filelayout_get_dserver_offset(struct pnfs_layout_segment *lseg, loff_t offset)
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BUG();
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}
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/* For data server errors we don't recover from */
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static void
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filelayout_set_lo_fail(struct pnfs_layout_segment *lseg)
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{
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if (lseg->pls_range.iomode == IOMODE_RW) {
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dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
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} else {
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dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
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}
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}
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static int filelayout_async_handle_error(struct rpc_task *task,
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struct nfs4_state *state,
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struct nfs_client *clp,
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@ -145,7 +132,7 @@ static int filelayout_read_done_cb(struct rpc_task *task,
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dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
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__func__, data->ds_clp, data->ds_clp->cl_session);
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if (reset) {
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filelayout_set_lo_fail(data->lseg);
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pnfs_set_lo_fail(data->lseg);
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nfs4_reset_read(task, data);
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clp = NFS_SERVER(data->inode)->nfs_client;
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}
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@ -221,7 +208,7 @@ static int filelayout_write_done_cb(struct rpc_task *task,
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dprintk("%s calling restart ds_clp %p ds_clp->cl_session %p\n",
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__func__, data->ds_clp, data->ds_clp->cl_session);
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if (reset) {
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filelayout_set_lo_fail(data->lseg);
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pnfs_set_lo_fail(data->lseg);
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nfs4_reset_write(task, data);
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clp = NFS_SERVER(data->inode)->nfs_client;
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} else
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@ -256,7 +243,7 @@ static int filelayout_commit_done_cb(struct rpc_task *task,
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__func__, data->ds_clp, data->ds_clp->cl_session);
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if (reset) {
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prepare_to_resend_writes(data);
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filelayout_set_lo_fail(data->lseg);
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pnfs_set_lo_fail(data->lseg);
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} else
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nfs_restart_rpc(task, data->ds_clp);
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return -EAGAIN;
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@ -1381,6 +1381,18 @@ static void pnfs_list_write_lseg(struct inode *inode, struct list_head *listp)
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}
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}
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void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg)
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{
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if (lseg->pls_range.iomode == IOMODE_RW) {
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dprintk("%s Setting layout IOMODE_RW fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
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} else {
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dprintk("%s Setting layout IOMODE_READ fail bit\n", __func__);
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set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
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}
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}
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EXPORT_SYMBOL_GPL(pnfs_set_lo_fail);
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void
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pnfs_set_layoutcommit(struct nfs_write_data *wdata)
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{
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@ -178,6 +178,7 @@ int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc);
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void pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *, struct nfs_page *);
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int pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc);
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bool pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev, struct nfs_page *req);
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void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg);
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int pnfs_layout_process(struct nfs4_layoutget *lgp);
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void pnfs_free_lseg_list(struct list_head *tmp_list);
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void pnfs_destroy_layout(struct nfs_inode *);
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