How to Sync properly ?

[Patrick Allaire]

Ok, I am using Minix FS ... to minimized space used by the meta data (short
file name ...)

What would be the FS suggested to minimize space used ?

thank


Patrick Allaire
mailto:pallaire at gameloft.com
If you can see it, but it's not there, it's virtual. 
If you can't see it, but it is there, it's hidden. 
It you can't see it and it isn't there, it's gone.



> -----Original Message-----
> From: David Woodhouse [mailto:dwmw2 at infradead.org]
> Sent: January 7, 2002 8:59 AM
> To: Patrick Allaire
> Cc: linux-mtd at lists.infradead.org
> Subject: Re: How to Sync properly ? 
> 
> 
> 
> pallaire at gameloft.com said:
> >  If I want to move a file from a ram drive to the flash, I 
> will issue
> > a 'mv' command followed by a 'sync' command. Sometime it will be
> > updated but sometime it wont !!! 'sync' should not return until the
> > flash is updated ? no ? 
> 
> > To see what was happening I added some printk in the driver, in the
> > delete and write ! I saw some stranges behaviour. After a 'mv',
> > sometimes the sync command does not do any things, sometime I see
> > somes delteting and writing of buffers but not all of the blocks ...
> > the remaining block will be written to the flash in a delay 
> from 1 to
> > 5 mintutes later ... and sometime the sync work fine !!! 
> 
> What file system? If you're using a 'normal' filesystem on 
> the mtdblock 
> device, you shouldn't expect it to be reliable. 
> 
> Linux stupidly just assumes that block devices never do any 
> write caching, 
> and a sync request is therefore never passed to the block 
> device driver. 
> 
> --
> dwmw2
> 
>