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Re: [GSOC] Implement file system flags to scrub data blocks before deletion

On Tue, Mar 20, 2012 at 03:11:02PM +0200, Stanislav Uzunchev wrote:
> Hi, all. I got interested in this project but i am a bit confused. How
> do you set a special flag for a data block on any file system without
> redesign the filesystem actually. For example, where on ext4 you will
> set such flag? I must be getting this wrong, i would be glad if
> someone makes it more clear. Regards.

In FFS at last there is file flags; see chflags(1).
I think there is some room for new flags in the inode entry.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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