From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 60C0827C17C; Mon, 5 May 2025 22:14:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746483283; cv=none; b=e5vbjDn6Xop1l05xoMhzBnz8YWO6rswHU8D172T/hvzka0y+nbW7ZDT/rz1Ig16tAgjAQEz0OL/bdf/ZENVAccyJxYswCNPv/DUNqMC9g28bDS5Rki4qgYZdiBSxeHHfwlyRzUxVJniiFpxOJ2NN5V8jJVP9V+U9FOpRcjw7UGk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746483283; c=relaxed/simple; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=plXIpQ8Z+qvmNhw2smJlF7bk0JZnY1op6wNmRJycmElDwNEtgTgqo4hi0pEbxeJrW68lVyRvbZ2KB7j/n83g3tcEbGMPLr5w+N2fjMbNs293VQQBUYhRhB6+EGJN5iXAIij1o6Fw0kPD4jkQebUU7VG9n45iu4RG7j6t5r+HHMQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=exGn1nF2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="exGn1nF2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B71BAC4CEF1; Mon, 5 May 2025 22:14:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746483283; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=exGn1nF211ZU/LdpgClgOJDYWbadM9ACef62sLsYsKlQaKaBD9/U92KjM4xQk2VNg CHDNDd6eFg4RQTdxdFhx6kDQPRsl25DnGEOMtk9E0LfUziLaivwD9NeumKAqhaTDDZ 7FsRSUvyK9uaLs70sNqDX+Ndvvm1+XcvxydOypB8CTVdH4UKjn07MPBkr7XWUlMyc3 N6cO4igFVe/KftxBPZOUZEaG3jYyjrgjCCaVwNyr3NS9NVquaGperDaupUov/ScelR 8ng+n7NrPBrEUuQuGkYkRWnrYNttTfdFW0y2idmSe8gnM0yR7Nb+/lW5OKq3W8T8Kv nvPL3EqRCNxmA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Trond Myklebust , Jeff Layton , Sasha Levin , chuck.lever@oracle.com, trondmy@kernel.org, anna@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-nfs@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 6.14 014/642] SUNRPC: Don't allow waiting for exiting tasks Date: Mon, 5 May 2025 18:03:50 -0400 Message-Id: <20250505221419.2672473-14-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505221419.2672473-1-sashal@kernel.org> References: <20250505221419.2672473-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.14.5 Content-Transfer-Encoding: 8bit From: Trond Myklebust [ 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 Signed-off-by: Trond Myklebust Signed-off-by: Sasha Levin --- 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; -- 2.39.5