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 170048F58; Sat, 24 Feb 2024 01:16:05 +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=1708737366; cv=none; b=DjTV/sWmWXc3/5GAtV0y2RPE1xfHQkHd7/ntwJwjxPtM/EA4BC3tyNy9hYjFVeDyXw4mFWGef0jF9v7lY3rL31MUWAtP1fihQCtfGevg3S0nN2oxVVHWLVAbikGVJHGFCneDfdn/8DHP2e46Sv9DXujn2ZoFKsHEZNT+NVnCJMQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708737366; c=relaxed/simple; bh=YYvJrol7FIU10J6nT0nMYbutoEnKpSEot6WG6TgCjxk=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Bx7nO/Y7Ho8lzfwQ6/RxXYguG6wHyWFZkKAwUuerf1k4pKbRN9f7pu4oHeaitK6gCofASXzXX2tE/avWooqi2g86S0jXhuwiWCY0FAIFrFjPROisU7wTTWlAeInuUyVdkqHTtF51khG4ftFhTegffyYDg3D92xUJxtFDhL88Lq4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=siWXoDh6; 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="siWXoDh6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2E1CC433C7; Sat, 24 Feb 2024 01:16:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1708737365; bh=YYvJrol7FIU10J6nT0nMYbutoEnKpSEot6WG6TgCjxk=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=siWXoDh6HKxNuMQh5M7rE1hVP1E5wpey2YEybBYnNWE/9LU+eI9Bmzv8YuZPPY5Ga niL92Oeea4JW8Xxx0gLfm+tNFNYZ1fJ+OLoXrf7o/IQ2mUlWPzp4mymg9KeGBiqXPI +tKLMlzk3lYQi0+je4XHYWem+oLy9nTGTQ6l4u0X44qD3tvX6TPOtGHW0n3SZahXlG ZEjGuGxCpIMlGVgvHdjwG6SDPVto5W5E2MVqzGkGf2r/og/F+6ySumL6qmGbso4kXO HR2Icls/gjq93UGTa6PUkpg/oXJqjAlEkxNKWJ0Nmv5Wa0vLZlljzI23hPJPMELc75 1iRL7T6dTjDoA== Date: Fri, 23 Feb 2024 17:16:05 -0800 Subject: [PATCH 09/10] kernel/hung_task.c: export sysctl_hung_task_timeout_secs From: "Darrick J. Wong" To: akpm@linux-foundation.org, daniel@gluo.nz, kent.overstreet@linux.dev, djwong@kernel.org Cc: fuyuanli , linux-xfs@vger.kernel.org, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <170873669034.1861398.8097801489286284855.stgit@frogsfrogsfrogs> In-Reply-To: <170873668859.1861398.2367011381778949840.stgit@frogsfrogsfrogs> References: <170873668859.1861398.2367011381778949840.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Kent Overstreet needed for thread_with_file; also rare but not unheard of to need this in module code, when blocking on user input. one workaround used by some code is wait_event_interruptible() - but that can be buggy if the outer context isn't expecting unwinding. Signed-off-by: Kent Overstreet Cc: Andrew Morton Cc: fuyuanli Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- kernel/hung_task.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/hung_task.c b/kernel/hung_task.c index 9a24574988d23..b2fc2727d6544 100644 --- a/kernel/hung_task.c +++ b/kernel/hung_task.c @@ -43,6 +43,7 @@ static int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT; * Zero means infinite timeout - no checking done: */ unsigned long __read_mostly sysctl_hung_task_timeout_secs = CONFIG_DEFAULT_HUNG_TASK_TIMEOUT; +EXPORT_SYMBOL_GPL(sysctl_hung_task_timeout_secs); /* * Zero (default value) means use sysctl_hung_task_timeout_secs: