From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754254AbZHaS4h (ORCPT ); Mon, 31 Aug 2009 14:56:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754088AbZHaS4M (ORCPT ); Mon, 31 Aug 2009 14:56:12 -0400 Received: from server1.wserver.cz ([82.113.45.157]:36622 "EHLO server1.wserver.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753466AbZHaS4J (ORCPT ); Mon, 31 Aug 2009 14:56:09 -0400 From: Jiri Slaby To: akpm@linux-foundation.org Cc: mingo@redhat.com, oleg@redhat.com, linux-kernel@vger.kernel.org, Jiri Slaby Subject: [PATCH 3/6] core: add task_struct to update_rlimit_cpu Date: Mon, 31 Aug 2009 20:56:11 +0200 Message-Id: <1251744974-29398-3-git-send-email-jirislaby@gmail.com> X-Mailer: git-send-email 1.6.3.3 In-Reply-To: <1251744974-29398-1-git-send-email-jirislaby@gmail.com> References: <1251744974-29398-1-git-send-email-jirislaby@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add task_struct as a parameter to update_rlimit_cpu to be able to set rlimit_cpu of different task than current. Signed-off-by: Jiri Slaby --- include/linux/posix-timers.h | 2 +- kernel/posix-cpu-timers.c | 10 +++++----- kernel/sys.c | 2 +- security/selinux/hooks.c | 3 ++- 4 files changed, 9 insertions(+), 8 deletions(-) diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index 4f71bf4..3e23844 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -117,6 +117,6 @@ void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx, long clock_nanosleep_restart(struct restart_block *restart_block); -void update_rlimit_cpu(unsigned long rlim_new); +void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new); #endif diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c index 12161f7..a61c625 100644 --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -12,16 +12,16 @@ /* * Called after updating RLIMIT_CPU to set timer expiration if necessary. */ -void update_rlimit_cpu(unsigned long rlim_new) +void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new) { cputime_t cputime = secs_to_cputime(rlim_new); - struct signal_struct *const sig = current->signal; + struct signal_struct *const sig = task->signal; if (cputime_eq(sig->it[CPUCLOCK_PROF].expires, cputime_zero) || cputime_gt(sig->it[CPUCLOCK_PROF].expires, cputime)) { - spin_lock_irq(¤t->sighand->siglock); - set_process_cpu_timer(current, CPUCLOCK_PROF, &cputime, NULL); - spin_unlock_irq(¤t->sighand->siglock); + spin_lock_irq(&task->sighand->siglock); + set_process_cpu_timer(task, CPUCLOCK_PROF, &cputime, NULL); + spin_unlock_irq(&task->sighand->siglock); } } diff --git a/kernel/sys.c b/kernel/sys.c index ae7be2e..d501f60 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1284,7 +1284,7 @@ SYSCALL_DEFINE2(setrlimit, unsigned int, resource, struct rlimit __user *, rlim) if (new_rlim.rlim_cur == RLIM_INFINITY) goto out; - update_rlimit_cpu(new_rlim.rlim_cur); + update_rlimit_cpu(current, new_rlim.rlim_cur); out: return 0; } diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 839622a..6903784 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2360,7 +2360,8 @@ static void selinux_bprm_committing_creds(struct linux_binprm *bprm) initrlim = init_task.signal->rlim + i; rlim->rlim_cur = min(rlim->rlim_max, initrlim->rlim_cur); } - update_rlimit_cpu(current->signal->rlim[RLIMIT_CPU].rlim_cur); + update_rlimit_cpu(current, + current->signal->rlim[RLIMIT_CPU].rlim_cur); } } -- 1.6.3.3