This is a note to let you know that I've just added the patch titled
pNFS/flexfiles: Report RDMA connection errors to the server
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pnfs-flexfiles-report-rdma-connection-errors-to-the-server.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7836d75467e9d214bdf5c693b32721de729a6e38 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Date: Wed, 18 May 2022 16:09:06 -0400
Subject: pNFS/flexfiles: Report RDMA connection errors to the server
From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
commit 7836d75467e9d214bdf5c693b32721de729a6e38 upstream.
The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them and report
them to the server. If not, we can end up cycling forever in a
LAYOUTGET/LAYOUTRETURN loop.
Fixes: a12f996d3413 ("NFSv4/pNFS: Use connections to a DS that are all of the same protocol family")
Cc: stable@xxxxxxxxxxxxxxx # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/nfs/flexfilelayout/flexfilelayout.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1131,6 +1131,8 @@ static int ff_layout_async_handle_error_
case -EIO:
case -ETIMEDOUT:
case -EPIPE:
+ case -EPROTO:
+ case -ENODEV:
dprintk("%s DS connection error %d\n", __func__,
task->tk_status);
nfs4_delete_deviceid(devid->ld, devid->nfs_client,
@@ -1236,6 +1238,8 @@ static void ff_layout_io_track_ds_error(
case -ENOBUFS:
case -EPIPE:
case -EPERM:
+ case -EPROTO:
+ case -ENODEV:
*op_status = status = NFS4ERR_NXIO;
break;
case -EACCES:
Patches currently in stable-queue which might be from trond.myklebust@xxxxxxxxxxxxxxx are
queue-5.19/pnfs-flexfiles-report-rdma-connection-errors-to-the-server.patch
queue-5.19/revert-pnfs-nfs3_set_ds_client-should-set-nfs_cs_noping.patch
