From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4/NIODONEMzvKyO/3piGI6HeW2lBpzQtPGm4GcSvbLkLfbnaGwfxbq636/oXL1HGAtnh0eK ARC-Seal: i=1; a=rsa-sha256; t=1522346741; cv=none; d=google.com; s=arc-20160816; b=teYmxcqQIncOU+LmOyVGu9lzU2L9tXj3z02QqGVy3SwDih7tgietvaqFN+bNymJG2n U1G6Ho3mNgYUiDpJ2AAh1FapcBOfpORNf5Bo189Dvhl9d+VYYBCfOyJAg/528lNRX6Oc Qdz9g3jTTA7/jZ1JKvAKX0YRart2tcR2KodFl1yYXB//WsDFwcdLh+fCJZc2Nrz43gz0 S7HAJO9Ootz2nhLbo6fPSSSDZ1SM4dmWb3W/fcz3rQzAW12oudsbjxLj07orFLhm2e3j DFCUy04UzEJiPSUGheaVtxezzOQBh6FFbPCJcDy9dMz2QXs7NbFBVL5yR+FKewEkC/h8 uqkw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=nizjFHjNXexOuiTNUDNBT58t6ZYyNEs4A2iq6WlAFQE=; b=jRVLEU6/hAWL9ph+kuYj5lvnT/ZOzktWQGpxU+XgvahvTqd01pZoogIO2LkExIAA/V 1KJFotB0UDmvlU4oUpWjktCFfHKnCcHduqTsEyjYOTjVkzB6PhMVY5v6hxF0310AieEX JmUFoVU/03WYBBlBmX9PtyP4vUhio+Fg0ytLz9An5JMfJLR/HESOL6sAdKUxNcX0ekfW i00OgAfQdwGkGlAumCInLzB625rzOrC2woaK4qMHLi06I0E4gyWz1sHF3h3XwWh9MN9O RNsJ4nEmXPQgXBCiQBFlBwhga4gbcZhCqrKg6CuoRkP5fsrFxPV+3nHI1rc1D/usYRro rDlw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Julian Wiedmann , "David S. Miller" Subject: [PATCH 4.14 41/43] s390/qeth: when thread completes, wake up all waiters Date: Thu, 29 Mar 2018 20:00:36 +0200 Message-Id: <20180329175734.630100590@linuxfoundation.org> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180329175730.190353692@linuxfoundation.org> References: <20180329175730.190353692@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1596296066112880212?= X-GMAIL-MSGID: =?utf-8?q?1596296256904133476?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Julian Wiedmann [ Upstream commit 1063e432bb45be209427ed3f1ca3908e4aa3c7d7 ] qeth_wait_for_threads() is potentially called by multiple users, make sure to notify all of them after qeth_clear_thread_running_bit() adjusted the thread_running_mask. With no timeout, callers would otherwise stall. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/s390/net/qeth_core_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -961,7 +961,7 @@ void qeth_clear_thread_running_bit(struc spin_lock_irqsave(&card->thread_mask_lock, flags); card->thread_running_mask &= ~thread; spin_unlock_irqrestore(&card->thread_mask_lock, flags); - wake_up(&card->wait_q); + wake_up_all(&card->wait_q); } EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);