Re: [PATCH 11/12] vfs: don't parse "posixacl" option

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On Thu, Nov 28, 2019 at 04:59:39PM +0100, Miklos Szeredi wrote:
> Unlike the others, this is _not_ a standard option accepted by mount(8).
> 
> In fact SB_POSIXACL is an internal flag, and accepting MS_POSIXACL on the
> mount(2) interface is possibly a bug.
> 
> The only filesystem that apparently wants to handle the "posixacl" option
> is 9p, but it has special handling of that option besides setting
> SB_POSIXACL.

Huh?  For e.g. ceph having -o posixacl and -o acl are currently equivalent;
your patch would seem to break that, wouldn't it?



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