Re: [PATCH] vfs: move ACL cache lookup into generic code

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On Sat, Jul 23, 2011 at 10:31:23AM -0700, Linus Torvalds wrote:

> It would be nice if we
> 
>  (a) got rid of umode_t entirely
> 
>  (b) changed 'mode_t' to the 16-bit traditional unix mode
> 
>  (c) made the users who now use 'mode_t' use the actual size they
> want, since if they actually depend on the higher bits, it shouldn't
> be called mode_t.
> 
> but we'll never do it, because it's such a pain.

Maybe, maybe not...  There's not *that* many of users of either of those.
BTW, what was fchmod(fd, -1) about?  It ends up using current ->i_mode,
but that's not only a Linuxism, it's an undocumented one...  Old one,
too - 0.99.14v, AFAICS.  Looking around on google gave no results (including
usenet search) and there's no changelog for that revision on kernel.org,
AFAICS...
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