Messages in this thread | | | Date | Mon, 19 Jan 2009 21:44:47 -0700 | From | Andreas Dilger <> | Subject | Re: [PATCH 0/20] return f_fsid for statfs(2) |
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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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