Re: [PATCH 0/20] return f_fsid for statfs(2)

[Andreas Dilger]

On Jan 20, 2009  12:30 +0800, Coly Li wrote:
> Ext[234] is sophisticated to have on-disk uuid record. Most file systems
> in the patches (except jfs and reiser3) do not have a persistent uuid,
> a reasonable/feasible solution without media format modification is fsid
> in boot/mount life cycle. That's why huge_encode_dev(sb->s_bdev->bd_dev)
> is used here.  For jfs and reiserfs3, is there any use case for
> persistent fsid cross boots ?

I would say yes, this is worthwhile to do, or the fsid can change between
boots unnecessarily.

Cheers, Andreas
--
Andreas Dilger
Sr. Staff Engineer, Lustre Group
Sun Microsystems of Canada, Inc.

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