linux-kernel - Re: [PATCH v7 6/6] MCS Lock: add Kconfig entries to allow arch-specific hooks

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Date:	Mon, 20 Jan 2014 14:17:35 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Paul E.McKenney" <paulmck@...ux.vnet.ibm.com>,
	Will Deacon <will.deacon@....com>,
	linux-kernel@...r.kernel.org, linux-mm <linux-mm@...ck.org>,
	linux-arch@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Waiman Long <waiman.long@...com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Alex Shi <alex.shi@...aro.org>,
	Andi Kleen <andi@...stfloor.org>,
	Michel Lespinasse <walken@...gle.com>,
	Davidlohr Bueso <davidlohr.bueso@...com>,
	Matthew R Wilcox <matthew.r.wilcox@...el.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Rik van Riel <riel@...hat.com>,
	Peter Hurley <peter@...leysoftware.com>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	George Spelvin <linux@...izon.com>,
	"H. Peter Anvin" <hpa@...or.com>, Arnd Bergmann <arnd@...db.de>,
	Aswin Chandramouleeswaran <aswin@...com>,
	Scott J Norton <scott.norton@...com>,
	"Figo.zhang" <figo1802@...il.com>
Subject: Re: [PATCH v7 6/6] MCS Lock: add Kconfig entries to allow
 arch-specific hooks

On Mon, Jan 20, 2014 at 01:30:30PM +0100, Peter Zijlstra wrote:
> Then again, people seem to whinge if you don't keep these Kbuild files
> sorted, but manually sorting 29 files is just not something I like to
> do.

This seems to do it..

gawk '/^generic-y/ {
	i = 3;
	do {
		for (; i<=NF; i++) {
			if ($i == "\\") {
				getline;
				i=1;
				continue;
			}
			if ($i != "")
				hdr[$i] = $i;
		}
		break;
	} while (1);
	next;
}
// { print $0; }
END {
	n = asort(hdr);
	for (i=1; i<=n; i++)
		print "generic-y += " hdr[i];
}'


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