Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759283AbZKFAoK (ORCPT ); Thu, 5 Nov 2009 19:44:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759247AbZKFAoH (ORCPT ); Thu, 5 Nov 2009 19:44:07 -0500 Received: from out01.mta.xmission.com ([166.70.13.231]:39325 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759248AbZKFAmI (ORCPT ); Thu, 5 Nov 2009 19:42:08 -0500 From: "Eric W. Biederman" To: Cc: , "Eric W. Biederman" , Tony Luck , Fenghua Yu Subject: [PATCH 04/11] sysctl: ia64 Use the compat_sys_sysctl Date: Thu, 5 Nov 2009 16:41:47 -0800 Message-Id: <1257468114-6823-4-git-send-email-ebiederm@xmission.com> X-Mailer: git-send-email 1.6.5.2.143.g8cc62 In-Reply-To: References: X-XM-SPF: eid=;;;mid=;;;hst=in01.mta.xmission.com;;;ip=76.21.114.89;;;frm=ebiederm@xmission.com;;;spf=neutral X-SA-Exim-Connect-IP: 76.21.114.89 X-SA-Exim-Mail-From: ebiederm@xmission.com X-SA-Exim-Version: 4.2.1 (built Thu, 25 Oct 2007 00:26:12 +0000) X-SA-Exim-Scanned: No (on in01.mta.xmission.com); Unknown failure Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3020 Lines: 100 From: Eric W. Biederman Now that we have a generic 32bit compatibility implementation there is no need for ia64 to implement it's own. Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Eric W. Biederman --- arch/ia64/ia32/ia32_entry.S | 2 +- arch/ia64/ia32/sys_ia32.c | 55 ------------------------------------------- 2 files changed, 1 insertions(+), 56 deletions(-) diff --git a/arch/ia64/ia32/ia32_entry.S b/arch/ia64/ia32/ia32_entry.S index af9405c..10c3751 100644 --- a/arch/ia64/ia32/ia32_entry.S +++ b/arch/ia64/ia32/ia32_entry.S @@ -327,7 +327,7 @@ ia32_syscall_table: data8 compat_sys_writev data8 sys_getsid data8 sys_fdatasync - data8 sys32_sysctl + data8 compat_sys_sysctl data8 sys_mlock /* 150 */ data8 sys_munlock data8 sys_mlockall diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 625ed8f..429ec96 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c @@ -1628,61 +1628,6 @@ sys32_msync (unsigned int start, unsigned int len, int flags) return sys_msync(addr, len + (start - addr), flags); } -struct sysctl32 { - unsigned int name; - int nlen; - unsigned int oldval; - unsigned int oldlenp; - unsigned int newval; - unsigned int newlen; - unsigned int __unused[4]; -}; - -#ifdef CONFIG_SYSCTL_SYSCALL -asmlinkage long -sys32_sysctl (struct sysctl32 __user *args) -{ - struct sysctl32 a32; - mm_segment_t old_fs = get_fs (); - void __user *oldvalp, *newvalp; - size_t oldlen; - int __user *namep; - long ret; - - if (copy_from_user(&a32, args, sizeof(a32))) - return -EFAULT; - - /* - * We need to pre-validate these because we have to disable address checking - * before calling do_sysctl() because of OLDLEN but we can't run the risk of the - * user specifying bad addresses here. Well, since we're dealing with 32 bit - * addresses, we KNOW that access_ok() will always succeed, so this is an - * expensive NOP, but so what... - */ - namep = (int __user *) compat_ptr(a32.name); - oldvalp = compat_ptr(a32.oldval); - newvalp = compat_ptr(a32.newval); - - if ((oldvalp && get_user(oldlen, (int __user *) compat_ptr(a32.oldlenp))) - || !access_ok(VERIFY_WRITE, namep, 0) - || !access_ok(VERIFY_WRITE, oldvalp, 0) - || !access_ok(VERIFY_WRITE, newvalp, 0)) - return -EFAULT; - - set_fs(KERNEL_DS); - lock_kernel(); - ret = do_sysctl(namep, a32.nlen, oldvalp, (size_t __user *) &oldlen, - newvalp, (size_t) a32.newlen); - unlock_kernel(); - set_fs(old_fs); - - if (oldvalp && put_user (oldlen, (int __user *) compat_ptr(a32.oldlenp))) - return -EFAULT; - - return ret; -} -#endif - asmlinkage long sys32_newuname (struct new_utsname __user *name) { -- 1.6.5.2.143.g8cc62 -- 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/