From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oren Laadan Subject: [PATCH v21 005/100] eclone (5/11): Add target_pids parameter to copy_process() Date: Sat, 1 May 2010 10:14:47 -0400 Message-ID: <1272723382-19470-6-git-send-email-orenl@cs.columbia.edu> References: <1272723382-19470-1-git-send-email-orenl@cs.columbia.edu> Return-path: In-Reply-To: <1272723382-19470-1-git-send-email-orenl@cs.columbia.edu> Sender: linux-kernel-owner@vger.kernel.org To: Andrew Morton Cc: containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Serge Hallyn , Matt Helsley , Pavel Emelyanov , Sukadev Bhattiprolu , linux-api@vger.kernel.org, x86@kernel.org, linux-s390@vger.kernel.org, linuxppc-dev@ozlabs.org, Oleg Nesterov List-Id: linux-api@vger.kernel.org From: Sukadev Bhattiprolu Add a 'target_pids' parameter to copy_process(). The new parameter will be used in a follow-on patch when eclone() is implemented. Cc: linux-api@vger.kernel.org Cc: x86@kernel.org Cc: linux-s390@vger.kernel.org Cc: linuxppc-dev@ozlabs.org Cc: Oleg Nesterov Signed-off-by: Sukadev Bhattiprolu Acked-by: Serge E. Hallyn Tested-by: Serge E. Hallyn Reviewed-by: Oren Laadan --- kernel/fork.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index 62018c8..9d2b57e 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -957,12 +957,12 @@ static struct task_struct *copy_process(unsigned long clone_flags, unsigned long stack_size, int __user *child_tidptr, struct pid *pid, + pid_t *target_pids, int trace) { int retval; struct task_struct *p; int cgroup_callbacks_done = 0; - pid_t *target_pids = NULL; if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS)) return ERR_PTR(-EINVAL); @@ -1339,7 +1339,7 @@ struct task_struct * __cpuinit fork_idle(int cpu) struct pt_regs regs; task = copy_process(CLONE_VM, 0, idle_regs(®s), 0, NULL, - &init_struct_pid, 0); + &init_struct_pid, NULL, 0); if (!IS_ERR(task)) init_idle(task, cpu); @@ -1362,6 +1362,7 @@ long do_fork(unsigned long clone_flags, struct task_struct *p; int trace = 0; long nr; + pid_t *target_pids = NULL; /* * Do some preliminary argument and permissions checking before we @@ -1402,7 +1403,7 @@ long do_fork(unsigned long clone_flags, trace = tracehook_prepare_clone(clone_flags); p = copy_process(clone_flags, stack_start, regs, stack_size, - child_tidptr, NULL, trace); + child_tidptr, NULL, target_pids, trace); /* * Do this prior waking up the new thread - the thread pointer * might get invalid after that point, if the thread exits quickly. -- 1.6.3.3