[PATCH AUTOSEL 6.12 013/486] SUNRPC: Don't allow waiting for exiting tasks
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REVIEWED: 1 (1M)
From: Sasha Levin <sashal@kernel.org>
Date: 2025-05-05 22:39:45
Also in:
linux-nfs, lkml, stable
Subsystem:
kernel nfsd, sunrpc, and lockd servers, networking [general], nfs, sunrpc, and lockd clients, the rest · Maintainers:
Chuck Lever, Jeff Layton, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Trond Myklebust, Anna Schumaker, Linus Torvalds
1 review trailer (1 from subsystem maintainers).
From: Trond Myklebust <redacted> [ Upstream commit 14e41b16e8cb677bb440dca2edba8b041646c742 ] Once a task calls exit_signals() it can no longer be signalled. So do not allow it to do killable waits. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <redacted> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/sunrpc/sched.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 9b45fbdc90cab..73bc39281ef5f 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c@@ -276,6 +276,8 @@ EXPORT_SYMBOL_GPL(rpc_destroy_wait_queue); static int rpc_wait_bit_killable(struct wait_bit_key *key, int mode) { + if (unlikely(current->flags & PF_EXITING)) + return -EINTR; schedule(); if (signal_pending_state(mode, current)) return -ERESTARTSYS;
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2.39.5