Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752486Ab3EPLNx (ORCPT ); Thu, 16 May 2013 07:13:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53449 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752226Ab3EPLNu (ORCPT ); Thu, 16 May 2013 07:13:50 -0400 Date: Thu, 16 May 2013 14:11:19 +0300 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Catalin Marinas , Will Deacon , David Howells , Hirokazu Takata , Michal Simek , Koichi Yasutake , Benjamin Herrenschmidt , Paul Mackerras , Chris Metcalf , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , "H. Peter Anvin" , x86@kernel.org, Arnd Bergmann , linux-arm-kernel@lists.infradead.org, linux-m32r@ml.linux-m32r.org, linux-m32r-ja@ml.linux-m32r.org, microblaze-uclinux@itee.uq.edu.au, linux-am33-list@redhat.com, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org Subject: [PATCH v2 05/10] microblaze: uaccess s/might_sleep/might_fault/ Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mutt-Fcc: =sent Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1536 Lines: 47 The only reason uaccess routines might sleep is if they fault. Make this explicit. Signed-off-by: Michael S. Tsirkin --- arch/microblaze/include/asm/uaccess.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index efe59d8..2fc8bf7 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -145,7 +145,7 @@ static inline unsigned long __must_check __clear_user(void __user *to, static inline unsigned long __must_check clear_user(void __user *to, unsigned long n) { - might_sleep(); + might_fault(); if (unlikely(!access_ok(VERIFY_WRITE, to, n))) return n; @@ -371,7 +371,7 @@ extern long __user_bad(void); static inline long copy_from_user(void *to, const void __user *from, unsigned long n) { - might_sleep(); + might_fault(); if (access_ok(VERIFY_READ, from, n)) return __copy_from_user(to, from, n); return n; @@ -385,7 +385,7 @@ static inline long copy_from_user(void *to, static inline long copy_to_user(void __user *to, const void *from, unsigned long n) { - might_sleep(); + might_fault(); if (access_ok(VERIFY_WRITE, to, n)) return __copy_to_user(to, from, n); return n; -- MST -- 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/