[Ocfs2-devel] [PATCH] ocfs2: return f_fsid info in ocfs2_statfs()

[Sunil Mushran]

Mark Fasheh wrote:
> Well, mkfs.ocfs2/tunefs.ocfs2 is supposed to populate it s_uuid_hash based
> on the *original* uuid of the file system. We don't dynamically calculate it
> because uuid might change due to a clone operation, which would then break
> the hashing of that particular file system.

OK. I missed that bit.

> Since s_uuid_hash is feature specific, I think perhaps we should just use
> some part of the uuid, which is always populated. For this, I think we could
> do the same as the o2cb dlm key (which has to also be pretty unique) -
> crc32_le(uuid)

I was thinking the same.