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From: Wang Yugui <wangyugui@e16-tech.com>
To: Qu Wenruo <wqu@suse.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH DRAFT] btrfs: RAID56J journal on-disk format draft
Date: Wed, 01 Jun 2022 10:06:45 +0800	[thread overview]
Message-ID: <20220601100645.6500.409509F4@e16-tech.com> (raw)
In-Reply-To: <f6679e0b681f9b1a74dfccbe05dcb5b6eb0878f6.1653372729.git.wqu@suse.com>

Hi,

> This is the draft version of the on-disk format for RAID56J journal.
> 
> The overall idea is, we have the following elements:
> 
> 1) A fixed header
>    Recording things like if the journal is clean or dirty, and how many
>    entries it has.
> 
> 2) One or at most 127 entries
>    Each entry will point to a range of data in the per-device reserved
>    range.

Can we put this journal in a device just like ' mke2fs -O journal_dev' 
or 'mkfs.xfs -l logdev'?

A fast & small journal device may help the performance.

Best Regards
Wang Yugui (wangyugui@e16-tech.com)
2022/06/01


  parent reply	other threads:[~2022-06-01  2:07 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-24  6:13 [PATCH DRAFT] btrfs: RAID56J journal on-disk format draft Qu Wenruo
2022-05-24 11:08 ` kernel test robot
2022-05-24 12:19 ` kernel test robot
2022-05-24 17:02 ` David Sterba
2022-05-24 22:31   ` Qu Wenruo
2022-05-25  9:00   ` Christoph Hellwig
2022-05-25  9:13     ` Qu Wenruo
2022-05-25  9:26       ` Christoph Hellwig
2022-05-25  9:35         ` Qu Wenruo
2022-05-26  9:06           ` waxhead
2022-05-26  9:26             ` Qu Wenruo
2022-05-26 15:30               ` Goffredo Baroncelli
2022-05-26 16:10                 ` David Sterba
2022-06-01  2:06 ` Wang Yugui [this message]
2022-06-01  2:13   ` Qu Wenruo
2022-06-01  2:25     ` Wang Yugui
2022-06-01  2:55       ` Qu Wenruo
2022-06-01  9:07         ` Wang Yugui
2022-06-01  9:27           ` Qu Wenruo
2022-06-01  9:56             ` Paul Jones
2022-06-01 10:12               ` Qu Wenruo
2022-06-01 18:49                 ` Martin Raiber
2022-06-01 21:37                   ` Qu Wenruo
2022-06-03  9:32                     ` Lukas Straub
2022-06-03  9:59                       ` Qu Wenruo
2022-06-06  8:16                         ` Qu Wenruo
2022-06-06 11:21                           ` Qu Wenruo
2022-06-06 18:10                             ` Goffredo Baroncelli
2022-06-07  1:27                               ` Qu Wenruo
2022-06-07 17:36                                 ` Goffredo Baroncelli
2022-06-07 22:14                                   ` Qu Wenruo
2022-06-08 17:26                                     ` Goffredo Baroncelli
2022-06-13  2:27                                       ` Qu Wenruo
2022-06-08 15:17                         ` Lukas Straub
2022-06-08 17:32                           ` Goffredo Baroncelli
2022-06-01 12:21               ` Qu Wenruo
2022-06-01 14:55                 ` Robert Krig

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