From: Andy Adamson <andros@xxxxxxxxxx>
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 <andros@xxxxxxxxxx>
---
fs/nfs/nfs4filelayout.c | 28 ++++++----------------------
1 files changed, 6 insertions(+), 22 deletions(-)
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index eebec9a..b9edc88 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -148,7 +148,6 @@ wait_on_recovery:
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;
--
1.7.6.4
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