linux-kernel - Re: [PATCH] Break out types from <linux/list.h> to <linux/list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100702204817.GB5842@parisc-linux.org>
Date:	Fri, 2 Jul 2010 14:48:17 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Chris Metcalf <cmetcalf@...era.com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH] Break out types from <linux/list.h> to
	<linux/list_types.h>.

On Fri, Jul 02, 2010 at 03:33:52PM -0400, Chris Metcalf wrote:
> On 7/2/2010 3:19 PM, Matthew Wilcox wrote:
> > Why a new header file instead of linux/types.h?
> 
> I was working from analogy to kvm_types.h, mm_types.h, rwlock_types.h,
> spinlock_types.h.  My impression is that linux/types.h is generally for
> basic (non-struct) types, with atomic_t/atomic64_t being added as
> "almost non-struct types", and of course the historical exception of
> "struct ustat", which has been there since the dawn of time (0.97 anyway).

I think list_head, hlist_head and hlist_node qualify as "almost non-struct
types", don't you?  :-)

I wouldn't mind seeing kvm_types.h, rwlock_types.h and spinlock_types.h
merged into types.h, personally.  They're all pretty fundamental kernel
kind of types.  It's a matter of taste, and I'm not particularly fussed
one way or the other.

mm_types.h is complex and full of mm-specific information, so keeping
it separate makes sense to me.

I just object to the unnecessary creation of tiny files like this.
Which is how we ended up with atomic_t and atomic64_t in there in the
first place :-)

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/