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 7EC33C5ACB2 for ; Wed, 15 Nov 2023 22:41:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230014AbjKOWlw (ORCPT ); Wed, 15 Nov 2023 17:41:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235621AbjKOWlv (ORCPT ); Wed, 15 Nov 2023 17:41:51 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0507B195 for ; Wed, 15 Nov 2023 14:41:48 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92B6DC433C8; Wed, 15 Nov 2023 22:41:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1700088107; bh=DdyoBsZ0sPD+T1klbWpLAdnmt+fGZkJTnLkTwOB+d6Q=; h=Date:To:From:Subject:From; b=FeFXfUHY+4Zok9x0RSjFVk07iM4Vhdr9jwdtF/bGNRPedd9522x3RUH+JZu5HPAnh 1d9zdlK50/SOWvzcpM9QXUbUkMSZbF7XYwe4lNR/SWUNLcN67sm5nmMUb45YPkCxd3 il+H/TgTWNXI7tUSNJeZykkaY2zdqIj3gPVucZN0= Date: Wed, 15 Nov 2023 14:41:47 -0800 To: mm-commits@vger.kernel.org, minchan@kernel.org, senozhatsky@chromium.org, akpm@linux-foundation.org From: Andrew Morton Subject: + zram-tweak-writeback-config-help.patch added to mm-unstable branch Message-Id: <20231115224147.92B6DC433C8@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: zram: tweak writeback config help has been added to the -mm mm-unstable branch. Its filename is zram-tweak-writeback-config-help.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-tweak-writeback-config-help.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Sergey Senozhatsky Subject: zram: tweak writeback config help Date: Wed, 15 Nov 2023 11:42:13 +0900 Writeback is for incompressible and idle zram pages. Link: https://lkml.kernel.org/r/20231115024223.4133148-2-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky Cc: Minchan Kim Signed-off-by: Andrew Morton --- drivers/block/zram/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/block/zram/Kconfig~zram-tweak-writeback-config-help +++ a/drivers/block/zram/Kconfig @@ -59,8 +59,8 @@ config ZRAM_WRITEBACK bool "Write back incompressible or idle page to backing device" depends on ZRAM help - With incompressible page, there is no memory saving to keep it - in memory. Instead, write it out to backing device. + This lets zram entries (incompressible or idle pages) be written + back to a backing device, helping save memory. For this feature, admin should set up backing device via /sys/block/zramX/backing_dev. _ Patches currently in -mm which might be from senozhatsky@chromium.org are zram-split-memory-tracking-and-ac-time-tracking.patch zram-tweak-writeback-config-help.patch