[PATCH] sunrpc: exclude from freezer when waiting for requests:

[NeilBrown]

Prior to v6.1, the freezer will only wake a kernel thread from an
uninterruptible sleep.  Since we changed svc_get_next_xprt() to use and
IDLE sleep the freezer cannot wake it.  we need to tell the freezer to
ignore it instead.

Fixes: 9b8a8e5e8129 ("nfsd: don't allow nfsd threads to be signalled.")
Signed-off-by: NeilBrown <neilb@xxxxxxx>
---
 net/sunrpc/svc_xprt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index b19592673eef..12e9293bd12b 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -764,10 +764,12 @@ static struct svc_xprt *svc_get_next_xprt(struct svc_rq=
st *rqstp, long timeout)
 	clear_bit(RQ_BUSY, &rqstp->rq_flags);
 	smp_mb__after_atomic();
=20
+	freezer_do_not_count();
 	if (likely(rqst_should_sleep(rqstp)))
 		time_left =3D schedule_timeout(timeout);
 	else
 		__set_current_state(TASK_RUNNING);
+	freezer_count();
=20
 	try_to_freeze();
=20
--=20
2.44.0