This is a note to let you know that I've just added the patch titled
SUNRPC: remove the maximum number of retries in call_bind_status
to the 5.4-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:
sunrpc-remove-the-maximum-number-of-retries-in-call_.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4ba883895e8f0973abf0a904d0eedfc2adbafb95
Author: Dai Ngo <dai.ngo@xxxxxxxxxx>
Date: Tue Apr 18 13:19:02 2023 -0700
SUNRPC: remove the maximum number of retries in call_bind_status
[ Upstream commit 691d0b782066a6eeeecbfceb7910a8f6184e6105 ]
Currently call_bind_status places a hard limit of 3 to the number of
retries on EACCES error. This limit was done to prevent NLM unlock
requests from being hang forever when the server keeps returning garbage.
However this change causes problem for cases when NLM service takes
longer than 9 seconds to register with the port mapper after a restart.
This patch removes this hard coded limit and let the RPC handles
the retry based on the standard hard/soft task semantics.
Fixes: 0b760113a3a1 ("NLM: Don't hang forever on NLM unlock requests")
Reported-by: Helen Chao <helen.chao@xxxxxxxxxx>
Tested-by: Helen Chao <helen.chao@xxxxxxxxxx>
Signed-off-by: Dai Ngo <dai.ngo@xxxxxxxxxx>
Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index a6ef35184ef13..5c37fabdec103 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -90,8 +90,7 @@ struct rpc_task {
#endif
unsigned char tk_priority : 2,/* Task priority */
tk_garb_retry : 2,
- tk_cred_retry : 2,
- tk_rebind_retry : 2;
+ tk_cred_retry : 2;
};
typedef void (*rpc_action)(struct rpc_task *);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 012b0504264de..629c05ff1f3e6 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2003,9 +2003,6 @@ call_bind_status(struct rpc_task *task)
status = -EOPNOTSUPP;
break;
}
- if (task->tk_rebind_retry == 0)
- break;
- task->tk_rebind_retry--;
rpc_delay(task, 3*HZ);
goto retry_timeout;
case -ENOBUFS:
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 32ffa801a5b97..a5c6a3d05741a 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -827,7 +827,6 @@ rpc_init_task_statistics(struct rpc_task *task)
/* Initialize retry counters */
task->tk_garb_retry = 2;
task->tk_cred_retry = 2;
- task->tk_rebind_retry = 2;
/* starting timestamp */
task->tk_start = ktime_get();
