From 90fecfcb3437dfc9bec4ee3306584dcd6843701b Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Fri, 27 Apr 2012 17:53:43 -0400 Subject: [PATCH] NFSv4.1 cleanup filelayout invalid layout handling 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 Signed-off-by: Trond Myklebust --- fs/nfs/nfs4filelayout.c | 28 ++++++---------------------- 1 file changed, 6 insertions(+), 22 deletions(-) diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index eebec9a7641a..b9edc8870561 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -148,7 +148,6 @@ static int filelayout_async_handle_error(struct rpc_task *task, static int filelayout_read_done_cb(struct rpc_task *task, struct nfs_read_data *data) { - struct nfs_pgio_header *hdr = data->header; int reset = 0; dprintk("%s DS read\n", __func__); @@ -157,10 +156,8 @@ 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(hdr->lseg); + if (reset) nfs4_reset_read(task, data); - } rpc_restart_call_prepare(task); return -EAGAIN; } @@ -233,17 +230,14 @@ static void filelayout_read_release(void *data) static int filelayout_write_done_cb(struct rpc_task *task, struct nfs_write_data *data) { - struct nfs_pgio_header *hdr = data->header; int reset = 0; if (filelayout_async_handle_error(task, data->args.context->state, 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(hdr->lseg); + if (reset) nfs4_reset_write(task, data); - } rpc_restart_call_prepare(task); return -EAGAIN; } @@ -272,10 +266,9 @@ 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 +386,8 @@ 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 */ @@ -433,11 +422,8 @@ 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__, hdr->inode->i_ino, sync, (size_t) data->args.count, offset, ds->ds_remotestr); @@ -969,8 +955,6 @@ static int filelayout_initiate_commit(struct nfs_commit_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); filelayout_commit_release(data); return -EAGAIN;