Re: [PATCH 2/2] xfs: only add log incompat features with explicit permission

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On Tue, Feb 27, 2024 at 10:09:20AM -0800, Christoph Hellwig wrote:
> Looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> 
> (although the CAP_SYS_ADMIN override is a bit odd if we explicitly
> asked to not do automagic feature upgrades)

Wellll... it's 'add_log_feat' (allow adding log features) or
"noadd_log_feat" (stop allowing adding log features).  There's no
setting for "don't allow, even for sysadmins".

I could turn it into a stringly typed option "log_feat={allow,forbid}"
but yuck. ;)

--D




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