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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Gao Xiang <hsiangkao@linux.alibaba.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>,
	 Yuwen Chen <ywen.chen@foxmail.com>,
	akpm@linux-foundation.org, bgeffon@google.com,
	 licayy@outlook.com, linux-block@vger.kernel.org,
	linux-kernel@vger.kernel.org,  linux-mm@kvack.org,
	minchan@kernel.org, richardycc@google.com
Subject: Re: [RFC PATCHv5 0/6] zram: introduce writeback bio batching
Date: Sun, 23 Nov 2025 09:22:48 +0900	[thread overview]
Message-ID: <d652n6zrqbkt4oltusd5egbnrvd5xz3k4kbmqnfuwuatdyuekn@22jscte4mx7m> (raw)
In-Reply-To: <853796e3-fd44-4fc2-8fd2-5810342a6ebe@linux.alibaba.com>

On (25/11/22 20:24), Gao Xiang wrote:
> > 
> > > zram(ext4) -> backing ext4/btrfs
> > 
> > This is not a valid configuration, as far as I'm concerned.
> > Unless I'm missing your point.
> 
> Why it's not valid? zram can be used as a regular virtual
> block device, and format with any fs, and mount the zram
> then.

If you want to move data between two filesystems, then just
mount both devices and cp/mv data between them.  zram is not
going to do that for you, zram writeback is for different
purpose.


  parent reply	other threads:[~2025-11-23  0:22 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-20 15:21 Sergey Senozhatsky
2025-11-20 15:21 ` [RFC PATCHv5 1/6] " Sergey Senozhatsky
2025-11-21  7:05   ` Yuwen Chen
2025-11-21  7:18     ` Sergey Senozhatsky
2025-11-21  7:40   ` Hannes Reinecke
2025-11-21  7:47     ` Sergey Senozhatsky
2025-11-20 15:21 ` [RFC PATCHv5 2/6] zram: add writeback batch size device attr Sergey Senozhatsky
2025-11-20 15:57   ` Brian Geffon
2025-11-21  1:56     ` Sergey Senozhatsky
2025-11-21  2:48   ` Sergey Senozhatsky
2025-11-20 15:21 ` [RFC PATCHv5 3/6] zram: take write lock in wb limit store handlers Sergey Senozhatsky
2025-11-20 16:03   ` Brian Geffon
2025-11-20 15:21 ` [RFC PATCHv5 4/6] zram: drop wb_limit_lock Sergey Senozhatsky
2025-11-20 16:03   ` Brian Geffon
2025-11-20 15:21 ` [RFC PATCHv5 5/6] zram: rework bdev block allocation Sergey Senozhatsky
2025-11-20 16:35   ` Brian Geffon
2025-11-20 15:21 ` [RFC PATCHv5 6/6] zram: read slot block idx under slot lock Sergey Senozhatsky
2025-11-20 18:13   ` Brian Geffon
2025-11-24 14:49   ` Brian Geffon
2025-11-21  7:14 ` [RFC PATCHv5 0/6] zram: introduce writeback bio batching Yuwen Chen
2025-11-21  7:32   ` Sergey Senozhatsky
2025-11-21  7:44     ` Yuwen Chen
2025-11-21  7:58       ` Sergey Senozhatsky
2025-11-21  8:23         ` Yuwen Chen
2025-11-21  9:12           ` Sergey Senozhatsky
2025-11-21 12:21             ` Gao Xiang
2025-11-21 12:43               ` Gao Xiang
2025-11-22 10:07               ` Sergey Senozhatsky
2025-11-22 12:24                 ` Gao Xiang
2025-11-22 13:43                   ` Sergey Senozhatsky
2025-11-22 14:09                     ` Gao Xiang
2025-11-23  0:08                       ` Sergey Senozhatsky
2025-11-23  1:23                         ` Gao Xiang
2025-11-23  3:07                           ` Sergey Senozhatsky
2025-11-23  0:22                   ` Sergey Senozhatsky [this message]
2025-11-23  1:39                     ` Gao Xiang
     [not found]             ` <tencent_D7ED79431EC0D75957539121B7CC7897EB06@qq.com>
2025-12-20 11:14               ` Sergey Senozhatsky

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