[PATCH AUTOSEL 5.15 17/68] NFSv4.1: handle NFS4ERR_NOSPC by CREATE_SESSION

Sasha Levin
2021-11-30T14:49:26Z

From: Olga Kornievskaia <kolga@netapp.com>

[ Upstream commit ea027cb2e1b59c76582af867b71d5c037fa6bb8e ]

When the client receives ERR_NOSPC on reply to CREATE_SESSION
it leads to a client hanging in nfs_wait_client_init_complete().
Instead, complete and fail the client initiation with an EIO
error which allows for the mount command to fail instead of
hanging.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/nfs/nfs4state.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index f22818a80c2c7..118aeeffd244b 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2001,6 +2001,10 @@ static int nfs4_handle_reclaim_lease_error(struct nfs_client *clp, int status)
dprintk("%s: exit with error %d for server %s\n",
__func__, -EPROTONOSUPPORT, clp->cl_hostname);
return -EPROTONOSUPPORT;
+ case -ENOSPC:
+ if (clp->cl_cons_state == NFS_CS_SESSION_INITING)
+ nfs_mark_client_ready(clp, -EIO);
+ return -EIO;
case -NFS4ERR_NOT_SAME: /* FixMe: implement recovery
* in nfs4_exchange_id */
default:
--
2.33.0