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 9050734C0FF; Mon, 5 May 2025 22:39:45 +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=1746484785; cv=none; b=TXj70cTmOc/bilAAJHlN6eLYd+q9fvJsKdFbvmdAFtgOaBNRHg3/XFRKv4rmZmcc7e70juJSEa6sHiGRQ918iTI22rpsunrNaT9nqDoaL0BaQnz67Jlq5YgFpA7Q7gAJeQEwuSiTfvXpLLV1fzxxFHJ1kQXxuZHABEdyVARfhuQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746484785; c=relaxed/simple; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Bg9fxQvxxzw7sv+PRDmoUvwgrh3XqyVQ+8jAeZVcvKfDQYiiDiYBcI3ZgCikwAy6JmTJgO2nHG2sdAvZCp/+/2aXpoiATtS1iQPjRNW1LN57ylrvTY9ocjl4m46NccdiPqVKqUWI1xfaRYAbNF1yM45r7KDEGvdXwNIEcDYq1dk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=R6xryH2c; 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="R6xryH2c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5275BC4CEED; Mon, 5 May 2025 22:39:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746484785; bh=qHENiOabmT77UFCXK7h2Oxu5/iLS0ySjclWVOhKY/ws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R6xryH2coRRB70Os0zVbb591Yj7uNoN797O68HFXCY3cFduWExitfeViSiZjGq0C+ FJrPEK4ev0wK+Rehz/sfuwZVTEKiwCtt7HanwUwmblBOAMSTZ/WBEYAITtdmmYiU/W 0Tw8UQrU1TvOz42lGNjirD7UzMJ5uFUvadlzt8CIY6WRrf9vRTIyI+cfkkiqS1HUKW ZxPLjjkA0Ao9Bo2MhL8dTuHJW2NIJjdNeayY9Y86bTtAbamw3Sw8i+E3eV7SuSYc2w RZdcIqWTn0TZZKLobmD8KpNsiNgSu5J5zsZexglO7Vvmi28Bt/Ym2YJYO7lmHufh3z Uz1zzm/nnyWDw== 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 6.12 013/486] SUNRPC: Don't allow waiting for exiting tasks Date: Mon, 5 May 2025 18:31:29 -0400 Message-Id: <20250505223922.2682012-13-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505223922.2682012-1-sashal@kernel.org> References: <20250505223922.2682012-1-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 6.12.26 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