Re: modify chmod (original) (raw)

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From: Jim Meyering
Subject: Re: modify chmod
Date: Sun, 21 Feb 2010 14:35:00 +0100

jeff.liu wrote:

Hi Jim,

Thanks for your so detailed instruction! And sorry for my later response, I just back from travel.

Could you please check my comments inline? ...

This is the most important point:

> [*] This change is intended to be an optimization. > I am leery of letting an optimization change the semantics of a > program like chmod (which is already very efficient), even if only > for the unusual case of a bind-mounted ACL-possessing non-directory > that resides on an NFS-mounted file system. > Other opinions?

Considering that this optimization is possible only if we agree to degrade (even by only a small amount) chmod's correctness, I am inclined to drop it.

No one disagreed.