From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 195083C09F7 for ; Fri, 7 Aug 2026 02:02:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786068164; cv=none; b=m60vb89rq6EF+GuMJx4OWxSX588T2omjS2tMEumopB5aNI1ehEyZA1mZylarTPj/tN3lUry2vcqHCjPeqetlrRSHUuOx1bl5Ya1aNGBviIudiAYXplzMbptlf/KPW2xcnfx0/7TbdzTefRIFMJ5EuDr4KHWfVs8nBqhJMF1RBLo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786068164; c=relaxed/simple; bh=waOX5C3GMHhKu4MW2LwU6x68rPbIMQick6RCtibYjAg=; h=Date:To:From:Subject:Message-Id; b=LhT2irU9+EMTzPWM+dUTRpYaeJJ6IkVX/ITD7EZ++KnjJdDU0kaFpT8R9DkzpvAwFN0HghZ/Ai2zYhp6NKnEtEgcMKJPdcbbMMgOUEDudhSAMU68cTC8upev1jOwfR3Xk3aJngInGpMbnT4TE/wxjY8TlW1ie5w/BDVnkfqiX6M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=z92M+CdB; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="z92M+CdB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 836DD1F00A3A; Fri, 7 Aug 2026 02:02:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1786068162; bh=uh1Nuzmp8Xm9RTYRiEZKBABupfCkwjoPaWPE7+rkqYY=; h=Date:To:From:Subject; b=z92M+CdBxHq/V5eJg/rIc7qRcSdi2w47Wc+sqOx2Lu4Hq/SlPNieJ1aJARXvSiyJc 3MVctoTG1Yx2Chkf7UPpJKGo+9T//LaZ8XYn8J4od3ZLYKkCYCKTXgzvRpKZBhOIKe dIaPSIXaDblTZTM9cUyCp05SBQJnbptob145qd10= Date: Thu, 06 Aug 2026 19:02:42 -0700 To: mm-commits@vger.kernel.org,sj@kernel.org,minchan@kernel.org,corbet@lwn.net,bigeasy@linutronix.de,senozhatsky@chromium.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] documentation-zram-remove-sections-numbering.patch removed from -mm tree Message-Id: <20260807020242.836DD1F00A3A@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: Documentation: zram: remove sections numbering has been removed from the -mm tree. Its filename was documentation-zram-remove-sections-numbering.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Sergey Senozhatsky Subject: Documentation: zram: remove sections numbering Date: Tue, 28 Jul 2026 11:12:11 +0900 Those numbers are difficult to maintain and in fact we can refer to sections by their names (in html). Link: https://lore.kernel.org/20260728021229.181627-1-senozhatsky@chromium.org Signed-off-by: Sergey Senozhatsky Suggested-by: Sebastian Andrzej Siewior Reviewed-by: SJ Park Cc: Jonathan Corbet Cc: Minchan Kim Signed-off-by: Andrew Morton --- Documentation/admin-guide/blockdev/zram.rst | 40 +++++++++--------- 1 file changed, 20 insertions(+), 20 deletions(-) --- a/Documentation/admin-guide/blockdev/zram.rst~documentation-zram-remove-sections-numbering +++ a/Documentation/admin-guide/blockdev/zram.rst @@ -61,8 +61,8 @@ and, in general case, something like:: should suffice. -1) Load Module -============== +Load Module +=========== :: @@ -73,8 +73,8 @@ This creates 4 devices: /dev/zram{0,1,2, num_devices parameter is optional and tells zram how many devices should be pre-created. Default: 1. -2) Select compression algorithm -=============================== +Select compression algorithm +============================ Using comp_algorithm device attribute one can see available and currently selected (shown in square brackets) compression algorithms, @@ -93,8 +93,8 @@ Examples:: For the time being, the `comp_algorithm` content shows only compression algorithms that are supported by zram. -3) Set compression algorithm parameters: Optional -================================================= +Set compression algorithm parameters: Optional +============================================== Compression algorithms may support specific parameters which can be tweaked for particular dataset. ZRAM has an `algorithm_params` device @@ -124,8 +124,8 @@ better the compression ratio, it even ca algorithms), for other algorithms `level` is acceleration level (the higher the value the lower the compression ratio). -4) Set Disksize -=============== +Set Disksize +============ Set disk size by writing the value to sysfs node 'disksize'. The value can be either in bytes or you can use mem suffixes. @@ -144,8 +144,8 @@ There is little point creating a zram of since we expect a 2:1 compression ratio. Note that zram uses about 0.1% of the size of the disk when not in use so a huge zram is wasteful. -5) Set memory limit: Optional -============================= +Set memory limit: Optional +========================== Set memory limit by writing the value to sysfs node 'mem_limit'. The value can be either in bytes or you can use mem suffixes. @@ -163,8 +163,8 @@ Examples:: # To disable memory limit echo 0 > /sys/block/zram0/mem_limit -6) Activate -=========== +Activate +======== :: @@ -174,8 +174,8 @@ Examples:: mkfs.ext4 /dev/zram1 mount /dev/zram1 /tmp -7) Add/remove zram devices -========================== +Add/remove zram devices +======================= zram provides a control interface, which enables dynamic (on-demand) device addition and removal. @@ -194,8 +194,8 @@ execute:: echo X > /sys/class/zram-control/hot_remove -8) Stats -======== +Stats +===== Per-device statistics are exported as various nodes under /sys/block/zram/ @@ -296,16 +296,16 @@ a single line of text and contains the f Unit: 4K bytes ============== ============================================================= -9) Deactivate -============== +Deactivate +========== :: swapoff /dev/zram0 umount /dev/zram1 -10) Reset -========= +Reset +===== Write any positive value to 'reset' sysfs node:: _ Patches currently in -mm which might be from senozhatsky@chromium.org are zram-set-default-primary-compressor-in-zram_destroy_comps.patch zram-validate-deflate-params.patch documentation-zram-correct-algo-parameters-configuration-documentation.patch zram-switch-to-unsigned-long-indexing.patch