pid namespaces: changes to show virtual ids to user

[net-next-2.6.git] / fs / proc / array.c

diff --git a/fs/proc/array.c b/fs/proc/array.c
index 24f7f9f6684d95201e69b70aab0749a6e1e640c9..04b689f3288f975612301e8acc9c8ba6ded1b3ab 100644 (file)
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -77,6 +77,7 @@
 #include <linux/cpuset.h>
 #include <linux/rcupdate.h>
 #include <linux/delayacct.h>
+#include <linux/pid_namespace.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -161,8 +162,15 @@ static inline char *task_state(struct task_struct *p, char *buffer)
        struct group_info *group_info;
        int g;
        struct fdtable *fdt = NULL;
+       struct pid_namespace *ns;
+       pid_t ppid, tpid;
 
+       ns = current->nsproxy->pid_ns;
        rcu_read_lock();
+       ppid = pid_alive(p) ?
+               task_tgid_nr_ns(rcu_dereference(p->real_parent), ns) : 0;
+       tpid = pid_alive(p) && p->ptrace ?
+               task_ppid_nr_ns(rcu_dereference(p->parent), ns) : 0;
        buffer += sprintf(buffer,
                "State:\t%s\n"
                "Tgid:\t%d\n"
@@ -172,9 +180,9 @@ static inline char *task_state(struct task_struct *p, char *buffer)
                "Uid:\t%d\t%d\t%d\t%d\n"
                "Gid:\t%d\t%d\t%d\t%d\n",
                get_task_state(p),
-               p->tgid, p->pid,
-               pid_alive(p) ? rcu_dereference(p->real_parent)->tgid : 0,
-               pid_alive(p) && p->ptrace ? rcu_dereference(p->parent)->pid : 0,
+               task_tgid_nr_ns(p, ns),
+               task_pid_nr_ns(p, ns),
+               ppid, tpid,
                p->uid, p->euid, p->suid, p->fsuid,
                p->gid, p->egid, p->sgid, p->fsgid);
 
@@ -394,6 +402,9 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
        unsigned long rsslim = 0;
        char tcomm[sizeof(task->comm)];
        unsigned long flags;
+       struct pid_namespace *ns;
+
+       ns = current->nsproxy->pid_ns;
 
        state = *get_task_state(task);
        vsize = eip = esp = 0;
@@ -416,7 +427,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                struct signal_struct *sig = task->signal;
 
                if (sig->tty) {
-                       tty_pgrp = pid_nr(sig->tty->pgrp);
+                       tty_pgrp = pid_nr_ns(sig->tty->pgrp, ns);
                        tty_nr = new_encode_dev(tty_devnum(sig->tty));
                }
 
@@ -449,9 +460,9 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
                        gtime += cputime_add(gtime, sig->gtime);
                }
 
-               sid = task_session_nr(task);
-               pgid = task_pgrp_nr(task);
-               ppid = rcu_dereference(task->real_parent)->tgid;
+               sid = task_session_nr_ns(task, ns);
+               pgid = task_pgrp_nr_ns(task, ns);
+               ppid = task_ppid_nr_ns(task, ns);
 
                unlock_task_sighand(task, &flags);
        }
@@ -483,7 +494,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole)
        res = sprintf(buffer, "%d (%s) %c %d %d %d %d %d %u %lu \
 %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
 %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n",
-               task->pid,
+               task_pid_nr_ns(task, ns),
                tcomm,
                state,
                ppid,