From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+5QaDKOsHDkfienNqKcGwInzVUZK9fPMvOZmd7lm+Iz1Csyij1a1zTyHs+82WRpXVA/eKK ARC-Seal: i=1; a=rsa-sha256; t=1523021173; cv=none; d=google.com; s=arc-20160816; b=E7dSHP/OUQt/14de+obkTkpwXgh+VRUB7pq5sp1x3/9k/RecaBsSeDBV5kBkj1vkor CUbE3LLiTvzmptQSQqTiZd9ZlivW4efTsJ7CyNxTwGFx0bbETCXc0siOOxBvomcBURgv FRq4/7ZknvU6eSv7Vp67GS+yTIfCMoW6e/pFSsuYH29QGKI9BK6OlDAWjCUxfKpGJmRP YBmUykMsOKFK8aEpkSsV3uwItGoDgvGIq0Nc8bS0bKKyAvdTGItQkffDvQ83rrw+cbb+ 9av/pGsO7q3nhX5UTe9PcU+T7cBUgZxUk0DlWPyVi/kQHjZr+6LRRzr1q2jaXNCpvhwi Fo+Q== 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=2Z+jOK3dFZzlIBHWmkWYet5cc4kxvM4rcqrjMdPIWgI=; b=QpppBsOEHZFO0ZccbCygUpDHU0kSqsDAClgmAIPTzlgbBeashwrJa/2e8sr4XpG9jq lGMkJlSwq28ILeO0jAlEDVgfdyJQ1JfQ2j/YjSMR/6ijznSrv4o3L5pc/WkgbCQi1a2o 6bBZLu94GSfmfqfaDrgKYLvPA31NkY+MH4XF6uWRCFpWvcfdGlv87xQUNk7C3L1IIdGa a7Vn+iZpvKCqaQxqUTO9V5WwToRXSe6ztbI6+PoFbGZKktrhAecbKcJIBCLfzYBCvSvK Eae8ASLjrbZuAxgsTH9uWhfvvpnh/8Ji20EboHNBJ7npmHBaK8IBdAvsRcHIS//zTCaL dv4w== 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 3.18 33/93] s390/qeth: when thread completes, wake up all waiters Date: Fri, 6 Apr 2018 15:23:02 +0200 Message-Id: <20180406084226.385964034@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180406084224.918716300@linuxfoundation.org> References: <20180406084224.918716300@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?1597003449320362855?= X-GMAIL-MSGID: =?utf-8?q?1597003449320362855?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.18-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 @@ -944,7 +944,7 @@ 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);