Re: [Ext2-devel] [RFC] [PATCH] Reducing average ext2 fsck timethrough fs-wide dirty bit]

[Badari Pulavarty]

On Tue, 2006-03-21 at 17:10 -0800, Valerie Henson wrote:
> Hi all,
> 
> I am working on reducing the average time spent on fscking ext2 file
> systems.  My initial take on the problem is to avoid fscking when the
> file system is not being modified.  If we're not actively modifying
> the file system when we crash, it seems intuitive that we could avoid
> fsck on next mount.  The obvious way to implement this is to add a
> clean/dirty bit to the superblock, check every so often to see if the
> file system is not being written, sync out all outstanding writes, and
> mark the file system clean.  On boot, fsck should check for the clean
> bit and mark the file system as valid, thereby avoiding a full fsck.
> I call this the fs-wide dirty bit solution.
..

Just curious, why are you teaching ext2 same tricks that are in ext3 ?
Is there a reason behind improving ext2 ? Are there any benefits
of not using ext3 instead ?

Thanks,
Badari

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