Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753658Ab3IZQZ3 (ORCPT ); Thu, 26 Sep 2013 12:25:29 -0400 Received: from mail-wg0-f50.google.com ([74.125.82.50]:54016 "EHLO mail-wg0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753585Ab3IZQZP (ORCPT ); Thu, 26 Sep 2013 12:25:15 -0400 From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Benjamin Herrenschmidt , Paul Mackerras , Ingo Molnar , Thomas Gleixner , Peter Zijlstra , "H. Peter Anvin" , Linus Torvalds , James Hogan , "James E.J. Bottomley" , Helge Deller , Martin Schwidefsky , Heiko Carstens , "David S. Miller" , Andrew Morton Subject: [PATCH 8/8] powerpc: Tell about irq stack coverage Date: Thu, 26 Sep 2013 18:24:46 +0200 Message-Id: <1380212686-25897-9-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1380212686-25897-1-git-send-email-fweisbec@gmail.com> References: <1380212686-25897-1-git-send-email-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1520 Lines: 44 Now that powerpc runs irq_exit() under the irq stack, let the softirq core know about that so that we spare the needless stack switch on irq exit's softirq processing. Signed-off-by: Frederic Weisbecker Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Paul Mackerras Cc: James Hogan Cc: James E.J. Bottomley Cc: Helge Deller Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: David S. Miller Cc: Andrew Morton --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 38f3b7e..b365d5c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -138,6 +138,7 @@ config PPC select OLD_SIGSUSPEND select OLD_SIGACTION if PPC32 select HAVE_DEBUG_STACKOVERFLOW + select HAVE_IRQ_EXIT_ON_IRQ_STACK config EARLY_PRINTK bool -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/