From: Vitaly Wool <vitalywool@gmail.com>
To: Linux-MM <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Dan Streetman <ddstreet@ieee.org>,
Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
Shakeel Butt <shakeelb@google.com>,
Henry Burns <henrywolfeburns@gmail.com>,
Theodore Ts'o <tytso@thunk.org>
Subject: [PATCH 0/3] Allow ZRAM to use any zpool-compatible backend
Date: Thu, 10 Oct 2019 23:04:14 +0300 [thread overview]
Message-ID: <20191010230414.647c29f34665ca26103879c4@gmail.com> (raw)
The coming patchset is a new take on the old issue: ZRAM can currently be used only with zsmalloc even though this may not be the optimal combination for some configurations. The previous (unsuccessful) attempt dates back to 2015 [1] and is notable for the heated discussions it has caused.
The patchset in [1] had basically the only goal of enabling ZRAM/zbud combo which had a very narrow use case. Things have changed substantially since then, and now, with z3fold used widely as a zswap backend, I, as the z3fold maintainer, am getting requests to re-interate on making it possible to use ZRAM with any zpool-compatible backend, first of all z3fold.
The preliminary results for this work have been delivered at Linux Plumbers this year [2]. The talk at LPC, though having attracted limited interest, ended in a consensus to continue the work and pursue the goal of decoupling ZRAM from zsmalloc.
The current patchset has been stress tested on arm64 and x86_64 devices, including the Dell laptop I'm writing this message on now, not to mention several QEmu confugirations.
[1] https://lkml.org/lkml/2015/9/14/356
[2] https://linuxplumbersconf.org/event/4/contributions/551/
next reply other threads:[~2019-10-10 20:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-10 20:04 Vitaly Wool [this message]
2019-10-10 20:09 ` [PATCH 1/3] zpool: extend API to match zsmalloc Vitaly Wool
2019-10-18 11:23 ` Dan Streetman
2019-10-10 20:11 ` [PATCH 2/3] zsmalloc: add compaction and huge class callbacks Vitaly Wool
2019-10-14 10:38 ` Sergey Senozhatsky
2019-10-10 20:20 ` [PATCH 3/3] zram: use common zpool interface Vitaly Wool
2019-10-14 10:47 ` Sergey Senozhatsky
2019-10-14 11:52 ` Vitaly Wool
2019-10-15 2:04 ` Sergey Senozhatsky
2019-10-14 10:33 ` [PATCH 0/3] Allow ZRAM to use any zpool-compatible backend Sergey Senozhatsky
2019-10-14 11:49 ` Vitaly Wool
2019-10-14 16:41 ` Minchan Kim
2019-10-14 16:50 ` Vitaly Wool
2019-10-15 7:39 ` Vitaly Wool
2019-10-15 20:00 ` Minchan Kim
2019-10-21 14:21 ` Vitaly Wool
2019-10-30 0:10 ` Minchan Kim
2019-11-13 15:54 ` Vitaly Wool
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