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Re: kjournald & jbd



speaking of which, I've noticed 
that kjournald goes defunct when 
the last ext3 filesystem is unmounted.
Why not keep it running?

Regards,
Tom Bassel

----- Original Message ----- 
From: "Stephen C. Tweedie" <sct redhat com>
To: "Bbbbb Bbbbbc" <avalea hotmail com>
Cc: <ext3-users redhat com>
Sent: Friday, September 06, 2002 8:49 AM
Subject: Re: kjournald & jbd


> Hi,
> 
> On Fri, Sep 06, 2002 at 12:34:51PM +0000, Bbbbb Bbbbbc wrote:
>  
> > Could someone please explain to me what is the difference between
> > kjournald and jbd (precisely, what does each of them do?)
> 
> jbd is the journaling layer which ext3 uses.  One of the things that
> the jbd layer does is to batch updates to the disk into compound
> atomic transactions, and those are written to disk in the background.
> kjournald is the name of the thread that the jbd code creates to
> perform those background commits.
> 
> Cheers,
>  Stephen
> 
> 
> 
> 





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