From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14002EB64DC for ; Tue, 18 Jul 2023 22:19:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230048AbjGRWTb (ORCPT ); Tue, 18 Jul 2023 18:19:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46038 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229761AbjGRWTa (ORCPT ); Tue, 18 Jul 2023 18:19:30 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D9F2198D for ; Tue, 18 Jul 2023 15:19:29 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id 4fb4d7f45d1cf-516500163b2so18162a12.1 for ; Tue, 18 Jul 2023 15:19:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1689718768; x=1692310768; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=cTirM6dws8Iol9T3+w/2xeoFNZKbQqSyMExz8yz5g0Y=; b=Fezxw57VkKhP2KFZu2Bjypfrr7kMv9q8H6u0ClctPhw9rszbNYM/Tf1Eo+qGSO9Wta XWq5M/msose+qnclvfmLYY7pBRqHKRXtMYbVcn+tvLrf6m53kw0MSb7vK/mUWik3FkYN QvPC/UE6vigEEuMpFbwiS4fLXAT9FdaRcD6xEJ2iW3VwuNKUxN5Zou2t2a7N0qs9Rz+Z 8wDCIAVjPDN11+TOhQKLBbwMbaHsg3KlW9F8Kmy+aJB36STzhK9fKwODNT6gdr/JAcOn e8txuxnFRDO+kFyyfFrzaRM0E0eKTepjs6eqVvJT0wutU/TBwa6FCOdxeijatwFwNrS9 WzXg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689718768; x=1692310768; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cTirM6dws8Iol9T3+w/2xeoFNZKbQqSyMExz8yz5g0Y=; b=iVtz8US3NpH1PxVloKcz38IuR9GD/l7E6xEsHZ67K2RNKIPexiTey3iYAp6GoMFTHP Yzj3RBNb9THl+j7XuZoOGHeCZfkAMHwtQJ6ZlVQlx03FMVyAnZWpguRVLiS6AMKJvJF1 YBFr4fTDNFTlBf47x66qBVp9h83RXqf19deafLa21MLwDoea+BOPzL5QpgPeTI0MsGBl B8nYkozF1yNOW33cSzv2/VJ9vqJy7a0iBVieB91IjPSRXSa0C00YYKL7iTIqoZWXk8G4 X9H9+0A28BXKFuwIQaWc3kgo2pF53RFxjIjCMiS2lhxhe+F+ijzuyQEK1RvkQf1Cs0Kd xXwA== X-Gm-Message-State: ABy/qLa5awHRJ4i6gc/1rx4lqV+UdgEZ97QvysQSwXxPFzRJHX83+5AG AgJQdlFGMbYBaSqyZYLxCqODatiDVsAmgcXRHrqDbQ== X-Google-Smtp-Source: APBJJlEXIdjXTngOmMaNnVJdOVTzeg6p3lOGTAIgqMp4hs2zhfhLpFXYo4inKjrvfwO97lDw6wdDXkkcEyBBr1Qig8E= X-Received: by 2002:a50:bae9:0:b0:51e:27ac:8f9a with SMTP id x96-20020a50bae9000000b0051e27ac8f9amr175465ede.1.1689718764750; Tue, 18 Jul 2023 15:19:24 -0700 (PDT) MIME-Version: 1.0 References: <20230718214540.1.I763efc30c57dcc0284d81f704ef581cded8960c8@changeid> In-Reply-To: From: Rob Barnes Date: Tue, 18 Jul 2023 16:18:47 -0600 Message-ID: Subject: Re: [PATCH] fs: export emergency_sync To: "Bill O'Donnell" Cc: bleung@chromium.org, linux-fsdevel@vger.kernel.org, Alexander Viro , Christian Brauner , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org My use case is when the EC panics. A hard reset is imminent. In my testing a regular sync did not always sync all of the logs. See https://lore.kernel.org/all/20230717232932.1.I361812b405bd07772f66660624188= 339ab158772@changeid On Tue, Jul 18, 2023 at 4:13=E2=80=AFPM Bill O'Donnell = wrote: > > On Tue, Jul 18, 2023 at 09:45:40PM +0000, Rob Barnes wrote: > > emergency_sync forces a filesystem sync in emergency situations. > > Export this function so it can be used by modules. > > > > Signed-off-by: Rob Barnes > > Example of an emergency situation? > Thanks- > Bill > > > > --- > > > > fs/sync.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/fs/sync.c b/fs/sync.c > > index dc725914e1edb..b313db0ebb5ee 100644 > > --- a/fs/sync.c > > +++ b/fs/sync.c > > @@ -142,6 +142,7 @@ void emergency_sync(void) > > schedule_work(work); > > } > > } > > +EXPORT_SYMBOL(emergency_sync); > > > > /* > > * sync a single super > > -- > > 2.41.0.255.g8b1d071c50-goog > > >