5.4-stable review patch. If anyone has any objections, please let me know.
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From: Dan Aloni dan.aloni@vastdata.com
[ Upstream commit 0dc9f430027b8bd9073fdafdfcdeb1a073ab5594 ]
It used to be quite awhile ago since 1b63a75180c6 ('SUNRPC: Refactor rpc_clone_client()'), in 2012, that `cl_timeout` was copied in so that all mount parameters propagate to NFSACL clients. However since that change, if mount options as follows are given:
soft,timeo=50,retrans=16,vers=3
The resultant NFSACL client receives:
cl_softrtry: 1 cl_timeout: to_initval=60000, to_maxval=60000, to_increment=0, to_retries=2, to_exponential=0
These values lead to NFSACL operations not being retried under the condition of transient network outages with soft mount. Instead, getacl call fails after 60 seconds with EIO.
The simple fix is to pass the existing client's `cl_timeout` as the new client timeout.
Cc: Chuck Lever chuck.lever@oracle.com Cc: Benjamin Coddington bcodding@redhat.com Link: https://lore.kernel.org/all/20231105154857.ryakhmgaptq3hb6b@gmail.com/T/ Fixes: 1b63a75180c6 ('SUNRPC: Refactor rpc_clone_client()') Signed-off-by: Dan Aloni dan.aloni@vastdata.com Reviewed-by: Benjamin Coddington bcodding@redhat.com Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/sunrpc/clnt.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index c6fe108845e8b..dc3226edf22fb 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -964,6 +964,7 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *old, .authflavor = old->cl_auth->au_flavor, .cred = old->cl_cred, .stats = old->cl_stats, + .timeout = old->cl_timeout, }; struct rpc_clnt *clnt; int err;