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 BF05336BA4B; Mon, 5 May 2025 22:56:52 +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=1746485812; cv=none; b=eQJuWlR7xNUW1zzrB3AeDf4rzsL4CUWthVsMOvsRolyHUK9bAIeFloIDCprX5zXGWWnugnnDHqv2cZ/khWFYr0tR41JnyNU/B5zPCPx31IvlBnNMeS4Jo4WJBBfz3Sp3Bp0iCGJJMRMMw5RNfAIYiFab9yN2kFZ0RB/f6PyOvGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746485812; c=relaxed/simple; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=JD2vU+N9h0vWaMmNJH7LFz/Kn4eEyVgQ7vnFmXeuKIfuqWXvccywSkt3btv6EGwFUtMTS2RxKlBAXkl1r/CGdURF2tsp3RDfBMYTXPEzM5Hwx/HljwXXVVDby74YSlXgM3ZSnfDgjmbiHe4rfEjQuD0y2normFgH9cxBwXOTnzo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cdZ134uX; 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="cdZ134uX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDAD0C4CEEF; Mon, 5 May 2025 22:56:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746485812; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cdZ134uXiFi0SbiEdQwK6kGVwm7pFES8bCzpe4aWkpNCYchsM7ZrGdIq2K3+sz5fR tPSd7hO+fw4Hgp/5nhxDXoJgT6vQ+357x3RZJd7HO1gZQ6jxs81gzSYLD/THY2j0IM veZEvEZoLyQ1+2nyiwYTvlh6IJHr9TPPl8v1hPH0f/pNbhafc7AjXRe2/L42j3/XQt 1OWMk3SRNaJWN6uDmtK4GLNuZRZso3P3RAitE3L0+mZ+LY91uGvUXpWYm8RFiZQR5I h3Ahi/5S26o4sQTsoYsf9bohvm5HbRfi2Q8iA3uZqU5suJvUTWqgjpD8p25NMhniz9 bpiYBQyTLWM+g== 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 6.6 010/294] SUNRPC: Don't allow waiting for exiting tasks Date: Mon, 5 May 2025 18:51:50 -0400 Message-Id: <20250505225634.2688578-10-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505225634.2688578-1-sashal@kernel.org> References: <20250505225634.2688578-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.89 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