Re: RFC/RFS: zerofree - zero free blocks from ext2/3 file-systems

[Thibaut Paumard <paumard@users.sourceforge.net>]

Le 7 févr. 08 à 02:11, Henrique de Moraes Holschuh a écrit :

> On Wed, 06 Feb 2008, Thibaut Paumard wrote:
> >  Zerofree finds the unallocated, non-zeroed blocks in an ext2 or ext3
> >  file-system and fills them with zeroes. This is useful if the  
> > device on
>
> How does zerofree avoid race conditions of something trying to use  
> a block
> it wil zero in the time window (<determine block is free>, <zero  
> block>]?

It works only on unmounted or read-only-mounted filesystems.

Regards, Thibaut.