Messages in this thread | | | Date | Tue, 20 Jan 2009 18:48:22 +0000 | From | Jamie Lokier <> | Subject | Re: [PATCH 0/20] return f_fsid for statfs(2) |
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Andreas Dilger wrote: > 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.
Even FAT has a volume id which should probably be used. I'm guessing NTFS does too.
-- Jamie
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