Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760456AbcDMLn2 (ORCPT ); Wed, 13 Apr 2016 07:43:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59552 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760419AbcDMLnY (ORCPT ); Wed, 13 Apr 2016 07:43:24 -0400 From: "Richard W.M. Jones" To: linux-kernel@vger.kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, akpm@linux-foundation.org, luto@kernel.org, viro@zeniv.linux.org.uk, mathieu.desnoyers@efficios.com, zab@redhat.com, emunson@akamai.com, paulmck@linux.vnet.ibm.com, aarcange@redhat.com, josh@joshtriplett.org, xemul@parallels.com, sfr@canb.auug.org.au, milosz@adfin.com, rostedt@goodmis.org, arnd@arndb.de, ebiederm@xmission.com, gorcunov@openvz.org, iulia.manda21@gmail.com, dave.hansen@linux.intel.com, mguzik@redhat.com, adobriyan@gmail.com, dave@stgolabs.net, linux-api@vger.kernel.org Subject: [PATCH 1/2] vfs: Define new syscall getumask. Date: Wed, 13 Apr 2016 12:43:05 +0100 Message-Id: <1460547786-16766-2-git-send-email-rjones@redhat.com> In-Reply-To: <1460547786-16766-1-git-send-email-rjones@redhat.com> References: <1460547786-16766-1-git-send-email-rjones@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1117 Lines: 38 Define a system call for reading the current umask value. Signed-off-by: Richard W.M. Jones --- include/linux/syscalls.h | 1 + kernel/sys.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index d795472..e96e88f 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -659,6 +659,7 @@ asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, struct rlimit64 __user *old_rlim); asmlinkage long sys_getrusage(int who, struct rusage __user *ru); asmlinkage long sys_umask(int mask); +asmlinkage long sys_getumask(void); asmlinkage long sys_msgget(key_t key, int msgflg); asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, diff --git a/kernel/sys.c b/kernel/sys.c index cf8ba54..026c146 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1649,6 +1649,11 @@ SYSCALL_DEFINE1(umask, int, mask) return mask; } +SYSCALL_DEFINE0(getumask) +{ + return current->fs->umask; +} + static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd) { struct fd exe; -- 2.7.4