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Re: [DISCUSSION] Journal playback
From: |
Marco Gerards |
Subject: |
Re: [DISCUSSION] Journal playback |
Date: |
Mon, 08 Aug 2005 13:46:58 +0200 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.3 (gnu/linux) |
Vladimir Serbinenko <address@hidden> writes:
> I've seen that journal playback is one of TODO items. I think it's bad
> idea because:
>
> 1) It'll increase the size of FS modules. And fs modules are often embed
> in core image. So their size is critical
The size of a filesystem module is now about 4KB. We do not know yet
how much the size will increase when journaling is possible.
> 2) It'll decrease safety because now GRUB doesn't write to FS and then
> it'll be so the GRUB's bugs could damage FS.
> 3) It'll be impossible to use resume/resume2 because the fs environment
> is not more the same as at the hibernation.
The data should not be written to the filesystem. Instead the
journal should be played back for the data that is read. I am not yet
sure if it is possible, easy and fast enough. But I do think it is
worthwhile to consider journaling support.
--
Marco