diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/capability.c | 14 | ||||
| -rw-r--r-- | kernel/exit.c | 31 | ||||
| -rw-r--r-- | kernel/fork.c | 2 | ||||
| -rw-r--r-- | kernel/futex.c | 27 | ||||
| -rw-r--r-- | kernel/futex_compat.c | 4 | ||||
| -rw-r--r-- | kernel/ptrace.c | 4 | ||||
| -rw-r--r-- | kernel/sched.c | 6 | ||||
| -rw-r--r-- | kernel/signal.c | 52 | ||||
| -rw-r--r-- | kernel/sys.c | 54 | ||||
| -rw-r--r-- | kernel/sysctl.c | 2 | ||||
| -rw-r--r-- | kernel/timer.c | 7 |
11 files changed, 132 insertions, 71 deletions
diff --git a/kernel/capability.c b/kernel/capability.c index f02ad47..d4377c5 100644 --- a/kernel/capability.c +++ b/kernel/capability.c @@ -62,8 +62,9 @@ asmlinkage long sys_capget(cap_user_header_t header, cap_user_data_t dataptr) spin_lock(&task_capability_lock); read_lock(&tasklist_lock); - if (pid && pid != current->pid) { - target = find_task_by_pid(pid); + if (pid && pid != task_pid_vnr(current)) { + target = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (!target) { ret = -ESRCH; goto out; @@ -96,7 +97,7 @@ static inline int cap_set_pg(int pgrp_nr, kernel_cap_t *effective, int found = 0; struct pid *pgrp; - pgrp = find_pid(pgrp_nr); + pgrp = find_pid_ns(pgrp_nr, current->nsproxy->pid_ns); do_each_pid_task(pgrp, PIDTYPE_PGID, g) { target = g; while_each_thread(g, target) { @@ -185,7 +186,7 @@ asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data) if (get_user(pid, &header->pid)) return -EFAULT; - if (pid && pid != current->pid && !capable(CAP_SETPCAP)) + if (pid && pid != task_pid_vnr(current) && !capable(CAP_SETPCAP)) return -EPERM; if (copy_from_user(&effective, &data->effective, sizeof(effective)) || @@ -196,8 +197,9 @@ asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data) spin_lock(&task_capability_lock); read_lock(&tasklist_lock); - if (pid > 0 && pid != current->pid) { - target = find_task_by_pid(pid); + if (pid > 0 && pid != task_pid_vnr(current)) { + target = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (!target) { ret = -ESRCH; goto out; diff --git a/kernel/exit.c b/kernel/exit.c index 567909f..68d2703 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1112,15 +1112,17 @@ asmlinkage void sys_exit_group(int error_code) static int eligible_child(pid_t pid, int options, struct task_struct *p) { int err; + struct pid_namespace *ns; + ns = current->nsproxy->pid_ns; if (pid > 0) { - if (p->pid != pid) + if (task_pid_nr_ns(p, ns) != pid) return 0; } else if (!pid) { - if (task_pgrp_nr(p) != task_pgrp_nr(current)) + if (task_pgrp_nr_ns(p, ns) != task_pgrp_vnr(current)) return 0; } else if (pid != -1) { - if (task_pgrp_nr(p) != -pid) + if (task_pgrp_nr_ns(p, ns) != -pid) return 0; } @@ -1190,9 +1192,12 @@ static int wait_task_zombie(struct task_struct *p, int noreap, { unsigned long state; int retval, status, traced; + struct pid_namespace *ns; + + ns = current->nsproxy->pid_ns; if (unlikely(noreap)) { - pid_t pid = p->pid; + pid_t pid = task_pid_nr_ns(p, ns); uid_t uid = p->uid; int exit_code = p->exit_code; int why, status; @@ -1311,11 +1316,11 @@ static int wait_task_zombie(struct task_struct *p, int noreap, retval = put_user(status, &infop->si_status); } if (!retval && infop) - retval = put_user(p->pid, &infop->si_pid); + retval = put_user(task_pid_nr_ns(p, ns), &infop->si_pid); if (!retval && infop) retval = put_user(p->uid, &infop->si_uid); if (!retval) - retval = p->pid; + retval = task_pid_nr_ns(p, ns); if (traced) { write_lock_irq(&tasklist_lock); @@ -1352,6 +1357,7 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader, int __user *stat_addr, struct rusage __user *ru) { int retval, exit_code; + struct pid_namespace *ns; if (!p->exit_code) return 0; @@ -1370,11 +1376,12 @@ static int wait_task_stopped(struct task_struct *p, int delayed_group_leader, * keep holding onto the tasklist_lock while we call getrusage and * possibly take page faults for user memory. */ + ns = current->nsproxy->pid_ns; get_task_struct(p); read_unlock(&tasklist_lock); if (unlikely(noreap)) { - pid_t pid = p->pid; + pid_t pid = task_pid_nr_ns(p, ns); uid_t uid = p->uid; int why = (p->ptrace & PT_PTRACED) ? CLD_TRAPPED : CLD_STOPPED; @@ -1445,11 +1452,11 @@ bail_ref: if (!retval && infop) retval = put_user(exit_code, &infop->si_status); if (!retval && infop) - retval = put_user(p->pid, &infop->si_pid); + retval = put_user(task_pid_nr_ns(p, ns), &infop->si_pid); if (!retval && infop) retval = put_user(p->uid, &infop->si_uid); if (!retval) - retval = p->pid; + retval = task_pid_nr_ns(p, ns); put_task_struct(p); BUG_ON(!retval); @@ -1469,6 +1476,7 @@ static int wait_task_continued(struct task_struct *p, int noreap, int retval; pid_t pid; uid_t uid; + struct pid_namespace *ns; if (!(p->signal->flags & SIGNAL_STOP_CONTINUED)) return 0; @@ -1483,7 +1491,8 @@ static int wait_task_continued(struct task_struct *p, int noreap, p->signal->flags &= ~SIGNAL_STOP_CONTINUED; spin_unlock_irq(&p->sighand->siglock); - pid = p->pid; + ns = current->nsproxy->pid_ns; + pid = task_pid_nr_ns(p, ns); uid = p->uid; get_task_struct(p); read_unlock(&tasklist_lock); @@ -1494,7 +1503,7 @@ static int wait_task_continued(struct task_struct *p, int noreap, if (!retval && stat_addr) retval = put_user(0xffff, stat_addr); if (!retval) - retval = p->pid; + retval = task_pid_nr_ns(p, ns); } else { retval = wait_noreap_copyout(p, pid, uid, CLD_CONTINUED, SIGCONT, diff --git a/kernel/fork.c b/kernel/fork.c index ce9297e..a794bfc 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -950,7 +950,7 @@ asmlinkage long sys_set_tid_address(int __user *tidptr) { current->clear_child_tid = tidptr; - return current->pid; + return task_pid_vnr(current); } static inline void rt_mutex_init_task(struct task_struct *p) diff --git a/kernel/futex.c b/kernel/futex.c index e45a65e..86b26003 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -53,6 +53,9 @@ #include <linux/signal.h> #include <linux/module.h> #include <linux/magic.h> +#include <linux/pid.h> +#include <linux/nsproxy.h> + #include <asm/futex.h> #include "rtmutex_common.h" @@ -443,7 +446,8 @@ static struct task_struct * futex_find_get_task(pid_t pid) struct task_struct *p; rcu_read_lock(); - p = find_task_by_pid(pid); + p = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (!p || ((current->euid != p->euid) && (current->euid != p->uid))) p = ERR_PTR(-ESRCH); @@ -653,7 +657,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_q *this) if (!(uval & FUTEX_OWNER_DIED)) { int ret = 0; - newval = FUTEX_WAITERS | new_owner->pid; + newval = FUTEX_WAITERS | task_pid_vnr(new_owner); curval = cmpxchg_futex_value_locked(uaddr, uval, newval); @@ -1106,7 +1110,7 @@ static void unqueue_me_pi(struct futex_q *q) static int fixup_pi_state_owner(u32 __user *uaddr, struct futex_q *q, struct task_struct *curr) { - u32 newtid = curr->pid | FUTEX_WAITERS; + u32 newtid = task_pid_vnr(curr) | FUTEX_WAITERS; struct futex_pi_state *pi_state = q->pi_state; u32 uval, curval, newval; int ret; @@ -1368,7 +1372,7 @@ static int futex_lock_pi(u32 __user *uaddr, struct rw_semaphore *fshared, * (by doing a 0 -> TID atomic cmpxchg), while holding all * the locks. It will most likely not succeed. */ - newval = current->pid; + newval = task_pid_vnr(current); curval = cmpxchg_futex_value_locked(uaddr, 0, newval); @@ -1379,7 +1383,7 @@ static int futex_lock_pi(u32 __user *uaddr, struct rw_semaphore *fshared, * Detect deadlocks. In case of REQUEUE_PI this is a valid * situation and we return success to user space. */ - if (unlikely((curval & FUTEX_TID_MASK) == current->pid)) { + if (unlikely((curval & FUTEX_TID_MASK) == task_pid_vnr(current))) { ret = -EDEADLK; goto out_unlock_release_sem; } @@ -1408,7 +1412,7 @@ static int futex_lock_pi(u32 __user *uaddr, struct rw_semaphore *fshared, */ if (unlikely(ownerdied || !(curval & FUTEX_TID_MASK))) { /* Keep the OWNER_DIED bit */ - newval = (curval & ~FUTEX_TID_MASK) | current->pid; + newval = (curval & ~FUTEX_TID_MASK) | task_pid_vnr(current); ownerdied = 0; lock_taken = 1; } @@ -1587,7 +1591,7 @@ retry: /* * We release only a lock we actually own: */ - if ((uval & FUTEX_TID_MASK) != current->pid) + if ((uval & FUTEX_TID_MASK) != task_pid_vnr(current)) return -EPERM; /* * First take all the futex related locks: @@ -1608,7 +1612,7 @@ retry_unlocked: * anyone else up: */ if (!(uval & FUTEX_OWNER_DIED)) - uval = cmpxchg_futex_value_locked(uaddr, current->pid, 0); + uval = cmpxchg_futex_value_locked(uaddr, task_pid_vnr(current), 0); if (unlikely(uval == -EFAULT)) @@ -1617,7 +1621,7 @@ retry_unlocked: * Rare case: we managed to release the lock atomically, * no need to wake anyone else up: */ - if (unlikely(uval == current->pid)) + if (unlikely(uval == task_pid_vnr(current))) goto out_unlock; /* @@ -1854,7 +1858,8 @@ sys_get_robust_list(int pid, struct robust_list_head __user * __user *head_ptr, ret = -ESRCH; rcu_read_lock(); - p = find_task_by_pid(pid); + p = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (!p) goto err_unlock; ret = -EPERM; @@ -1887,7 +1892,7 @@ retry: if (get_user(uval, uaddr)) return -1; - if ((uval & FUTEX_TID_MASK) == curr->pid) { + if ((uval & FUTEX_TID_MASK) == task_pid_vnr(curr)) { /* * Ok, this dying thread is truly holding a futex * of interest. Set the OWNER_DIED bit atomically diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c index 2c2e295..cc098e1 100644 --- a/kernel/futex_compat.c +++ b/kernel/futex_compat.c @@ -8,6 +8,7 @@ #include <linux/linkage.h> #include <linux/compat.h> +#include <linux/nsproxy.h> #include <linux/futex.h> #include <asm/uaccess.h> @@ -124,7 +125,8 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, ret = -ESRCH; read_lock(&tasklist_lock); - p = find_task_by_pid(pid); + p = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (!p) goto err_unlock; ret = -EPERM; diff --git a/kernel/ptrace.c b/kernel/ptrace.c index a73ebd3..66e99eb 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -19,6 +19,7 @@ #include <linux/security.h> #include <linux/signal.h> #include <linux/audit.h> +#include <linux/pid_namespace.h> #include <asm/pgtable.h> #include <asm/uaccess.h> @@ -443,7 +444,8 @@ struct task_struct *ptrace_get_task_struct(pid_t pid) return ERR_PTR(-EPERM); read_lock(&tasklist_lock); - child = find_task_by_pid(pid); + child = find_task_by_pid_ns(pid, + current->nsproxy->pid_ns); if (child) get_task_struct(child); diff --git a/kernel/sched.c b/kernel/sched.c index 72a2a16..4ac56fe 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -44,6 +44,7 @@ #include <linux/vmalloc.h> #include <linux/blkdev.h> #include <linux/delay.h> +#include <linux/pid_namespace.h> #include <linux/smp.h> #include <linux/threads.h> #include <linux/timer.h> @@ -1876,7 +1877,7 @@ asmlinkage void schedule_tail(struct task_struct *prev) preempt_enable(); #endif if (current->set_child_tid) - put_user(current->pid, current->set_child_tid); + put_user(task_pid_vnr(current), current->set_child_tid); } /* @@ -4167,7 +4168,8 @@ struct task_struct *idle_task(int cpu) */ static struct task_struct *find_process_by_pid(pid_t pid) { - return pid ? find_task_by_pid(pid) : current; + return pid ? + find_task_by_pid_ns(pid, current->nsproxy->pid_ns) : current; } /* Actually do priority change: must hold rq lock. */ diff --git a/kernel/signal.c b/kernel/signal.c index 9892388..d809cdd 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -694,7 +694,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t, q->info.si_signo = sig; q->info.si_errno = 0; q->info.si_code = SI_USER; - q->info.si_pid = current->pid; + q->info.si_pid = task_pid_vnr(current); q->info.si_uid = current->uid; break; case (unsigned long) SEND_SIG_PRIV: @@ -1089,7 +1089,7 @@ kill_proc_info(int sig, struct siginfo *info, pid_t pid) { int error; rcu_read_lock(); - error = kill_pid_info(sig, info, find_pid(pid)); + error = kill_pid_info(sig, info, find_vpid(pid)); rcu_read_unlock(); return error; } @@ -1160,9 +1160,9 @@ static int kill_something_info(int sig, struct siginfo *info, int pid) read_unlock(&tasklist_lock); ret = count ? retval : -ESRCH; } else if (pid < 0) { - ret = kill_pgrp_info(sig, info, find_pid(-pid)); + ret = kill_pgrp_info(sig, info, find_vpid(-pid)); } else { - ret = kill_pid_info(sig, info, find_pid(pid)); + ret = kill_pid_info(sig, info, find_vpid(pid)); } rcu_read_unlock(); return ret; @@ -1266,7 +1266,12 @@ EXPORT_SYMBOL(kill_pid); int kill_proc(pid_t pid, int sig, int priv) { - return kill_proc_info(sig, __si_special(priv), pid); + int ret; + + rcu_read_lock(); + ret = kill_pid_info(sig, __si_special(priv), find_pid(pid)); + rcu_read_unlock(); + return ret; } /* @@ -1443,7 +1448,22 @@ void do_notify_parent(struct task_struct *tsk, int sig) info.si_signo = sig; info.si_errno = 0; - info.si_pid = tsk->pid; + /* + * we are under tasklist_lock here so our parent is tied to + * us and cannot exit and release its namespace. + * + * the only it can is to switch its nsproxy with sys_unshare, + * bu uncharing pid namespaces is not allowed, so we'll always + * see relevant namespace + * + * write_lock() currently calls preempt_disable() which is the + * same as rcu_read_lock(), but according to Oleg, this is not + * correct to rely on this + */ + rcu_read_lock(); + info.si_pid = task_pid_nr_ns(tsk, tsk->parent->nsproxy->pid_ns); + rcu_read_unlock(); + info.si_uid = tsk->uid; /* FIXME: find out whether or not this is supposed to be c*time. */ @@ -1508,7 +1528,13 @@ static void do_notify_parent_cldstop(struct task_struct *tsk, int why) info.si_signo = SIGCHLD; info.si_errno = 0; - info.si_pid = tsk->pid; + /* + * see comment in do_notify_parent() abot the following 3 lines + */ + rcu_read_lock(); + info.si_pid = task_pid_nr_ns(tsk, tsk->parent->nsproxy->pid_ns); + rcu_read_unlock(); + info.si_uid = tsk->uid; /* FIXME: find out whether or not this is supposed to be c*time. */ @@ -1634,7 +1660,7 @@ void ptrace_notify(int exit_code) memset(&info, 0, sizeof info); info.si_signo = SIGTRAP; info.si_code = exit_code; - info.si_pid = current->pid; + info.si_pid = task_pid_vnr(current); info.si_uid = current->uid; /* Let the debugger run. */ @@ -1804,7 +1830,7 @@ relock: info->si_signo = signr; info->si_errno = 0; info->si_code = SI_USER; - info->si_pid = current->parent->pid; + info->si_pid = task_pid_vnr(current->parent); info->si_uid = current->parent->uid; } @@ -2191,7 +2217,7 @@ sys_kill(int pid, int sig) info.si_signo = sig; info.si_errno = 0; info.si_code = SI_USER; - info.si_pid = current->tgid; + info.si_pid = task_tgid_vnr(current); info.si_uid = current->uid; return kill_something_info(sig, &info, pid); @@ -2207,12 +2233,12 @@ static int do_tkill(int tgid, int pid, int sig) info.si_signo = sig; info.si_errno = 0; info.si_code = SI_TKILL; - info.si_pid = current->tgid; + info.si_pid = task_tgid_vnr(current); info.si_uid = current->uid; read_lock(&tasklist_lock); - p = find_task_by_pid(pid); - if (p && (tgid <= 0 || p->tgid == tgid)) { + p = find_task_by_pid_ns(pid, current->nsproxy->pid_ns); + if (p && (tgid <= 0 || task_tgid_vnr(p) == tgid)) { error = check_kill_permission(sig, &info, p); /* * The null signal is a permissions and process existence diff --git a/kernel/sys.c b/kernel/sys.c index 4cfa213..23620d5 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -152,7 +152,8 @@ asmlinkage long sys_setpriority(int which, int who, int niceval) switch (which) { case PRIO_PROCESS: if (who) - p = find_task_by_pid(who); + p = find_task_by_pid_ns(who, + current->nsproxy->pid_ns); else p = current; if (p) @@ -160,7 +161,7 @@ asmlinkage long sys_setpriority(int which, int who, int niceval) break; case PRIO_PGRP: if (who) - pgrp = find_pid(who); + pgrp = find_vpid(who); else pgrp = task_pgrp(current); do_each_pid_task(pgrp, PIDTYPE_PGID, p) { @@ -209,7 +210,8 @@ asmlinkage long sys_getpriority(int which, int who) switch (which) { case PRIO_PROCESS: if (who) - p = find_task_by_pid(who); + p = find_task_by_pid_ns(who, + current->nsproxy->pid_ns); else p = current; if (p) { @@ -220,7 +222,7 @@ asmlinkage long sys_getpriority(int which, int who) break; case PRIO_PGRP: if (who) - pgrp = find_pid(who); + pgrp = find_vpid(who); else pgrp = task_pgrp(current); do_each_pid_task(pgrp, PIDTYPE_PGID, p) { @@ -917,9 +919,10 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) struct task_struct *p; struct task_struct *group_leader = current->group_leader; int err = -EINVAL; + struct pid_namespace *ns; if (!pid) - pid = group_leader->pid; + pid = task_pid_vnr(group_leader); if (!pgid) pgid = pid; if (pgid < 0) @@ -928,10 +931,12 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) /* From this point forward we keep holding onto the tasklist lock * so that our parent does not change from under us. -DaveM */ + ns = current->nsproxy->pid_ns; + write_lock_irq(&tasklist_lock); err = -ESRCH; - p = find_task_by_pid(pid); + p = find_task_by_pid_ns(pid, ns); if (!p) goto out; @@ -957,9 +962,9 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) goto out; if (pgid != pid) { - struct task_struct *g = - find_task_by_pid_type(PIDTYPE_PGID, pgid); + struct task_struct *g; + g = find_task_by_pid_type_ns(PIDTYPE_PGID, pgid, ns); if (!g || task_session(g) != task_session(group_leader)) goto out; } @@ -968,10 +973,13 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid) if (err) goto out; - if (task_pgrp_nr(p) != pgid) { + if (task_pgrp_nr_ns(p, ns) != pgid) { + struct pid *pid; + detach_pid(p, PIDTYPE_PGID); - p->signal->pgrp = pgid; - attach_pid(p, PIDTYPE_PGID, find_pid(pgid)); + pid = find_vpid(pgid); + attach_pid(p, PIDTYPE_PGID, pid); + p->signal->pgrp = pid_nr(pid); } err = 0; @@ -984,19 +992,21 @@ out: asmlinkage long sys_getpgid(pid_t pid) { if (!pid) - return task_pgrp_nr(current); + return task_pgrp_vnr(current); else { int retval; struct task_struct *p; + struct pid_namespace *ns; - read_lock(&tasklist_lock); - p = find_task_by_pid(pid); + ns = current->nsproxy->pid_ns; + read_lock(&tasklist_lock); + p = find_task_by_pid_ns(pid, ns); retval = -ESRCH; if (p) { retval = security_task_getpgid(p); if (!retval) - retval = task_pgrp_nr(p); + retval = task_pgrp_nr_ns(p, ns); } read_unlock(&tasklist_lock); return retval; @@ -1008,7 +1018,7 @@ asmlinkage long sys_getpgid(pid_t pid) asmlinkage long sys_getpgrp(void) { /* SMP - assuming writes are word atomic this is fine */ - return task_pgrp_nr(current); + return task_pgrp_vnr(current); } #endif @@ -1016,19 +1026,21 @@ asmlinkage long sys_getpgrp(void) asmlinkage long sys_getsid(pid_t pid) { if (!pid) - return task_session_nr(current); + return task_session_vnr(current); else { int retval; struct task_struct *p; + struct pid_namespace *ns; - read_lock(&tasklist_lock); - p = find_task_by_pid(pid); + ns = current->nsproxy->pid_ns; + read_lock(&tasklist_lock); + p = find_task_by_pid_ns(pid, ns); retval = -ESRCH; if (p) { retval = security_task_getsid(p); if (!retval) - retval = task_session_nr(p); + retval = task_session_nr_ns(p, ns); } read_unlock(&tasklist_lock); return retval; @@ -1065,7 +1077,7 @@ asmlinkage long sys_setsid(void) group_leader->signal->tty = NULL; spin_unlock(&group_leader->sighand->siglock); - err = task_pgrp_nr(group_leader); + err = task_pgrp_vnr(group_leader); out: write_unlock_irq(&tasklist_lock); return err; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 44868e4..3b4efbe 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2278,7 +2278,7 @@ static int proc_do_cad_pid(struct ctl_table *table, int write, struct file *filp pid_t tmp; int r; - tmp = pid_nr(cad_pid); + tmp = pid_nr_ns(cad_pid, current->nsproxy->pid_ns); r = __do_proc_dointvec(&tmp, table, write, filp, buffer, lenp, ppos, NULL, NULL); diff --git a/kernel/timer.c b/kernel/timer.c index 8521d10..fb4e67d 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -26,6 +26,7 @@ #include <linux/init.h> #include <linux/mm.h> #include <linux/swap.h> +#include <linux/pid_namespace.h> #include <linux/notifier.h> #include <linux/thread_info.h> #include <linux/time.h> @@ -956,7 +957,7 @@ asmlinkage unsigned long sys_alarm(unsigned int seconds) */ asmlinkage long sys_getpid(void) { - return current->tgid; + return task_tgid_vnr(current); } /* @@ -970,7 +971,7 @@ asmlinkage long sys_getppid(void) int pid; rcu_read_lock(); - pid = rcu_dereference(current->real_parent)->tgid; + pid = task_ppid_nr_ns(current, current->nsproxy->pid_ns); rcu_read_unlock(); return pid; @@ -1102,7 +1103,7 @@ EXPORT_SYMBOL(schedule_timeout_uninterruptible); /* Thread ID - the internal kernel "pid" */ asmlinkage long sys_gettid(void) { - return current->pid; + return task_pid_vnr(current); } /** |
