2016-12-17 20:28:14

by Trond Myklebust

[permalink] [raw]
Subject: [PATCH] pNFS/flexfiles: delete deviceid, don't mark inactive

From: Weston Andros Adamson <[email protected]>

Instead of marking a device inactive, remove it from the cache entirely.

Flexfiles has a way to report errors back to the server, so we don't want
to stop devices from being tried again for 120 seconds.

Signed-off-by: Weston Andros Adamson <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/flexfilelayout/flexfilelayout.c | 6 ++++--
fs/nfs/flexfilelayout/flexfilelayoutdev.c | 2 +-
2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 9e111d07f667..45962fe5098c 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1126,7 +1126,8 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task,
case -EPIPE:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
- nfs4_mark_deviceid_unavailable(devid);
+ nfs4_delete_deviceid(devid->ld, devid->nfs_client,
+ &devid->deviceid);
rpc_wake_up(&tbl->slot_tbl_waitq);
/* fall through */
default:
@@ -1175,7 +1176,8 @@ static int ff_layout_async_handle_error_v3(struct rpc_task *task,
default:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
- nfs4_mark_deviceid_unavailable(devid);
+ nfs4_delete_deviceid(devid->ld, devid->nfs_client,
+ &devid->deviceid);
}
/* FIXME: Need to prevent infinite looping here. */
return -NFS4ERR_RESET_TO_PNFS;
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 3cc39d1c1206..e5a6f248697b 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -177,7 +177,7 @@ nfs4_ff_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
static void ff_layout_mark_devid_invalid(struct pnfs_layout_segment *lseg,
struct nfs4_deviceid_node *devid)
{
- nfs4_mark_deviceid_unavailable(devid);
+ nfs4_delete_deviceid(devid->ld, devid->nfs_client, &devid->deviceid);
if (!ff_layout_has_available_ds(lseg))
pnfs_error_mark_layout_for_return(lseg->pls_layout->plh_inode,
lseg);
--
2.9.3