regression: disable timer peek-ahead for 2.6.28

[linux-2.6-omap-h63xx.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index c539f60c6f41bc2b9e170b93bf66a8bca5e93ce3..4530fc65445518272ae851fa44e90378cfd908e1 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -27,6 +27,7 @@
 #include <linux/freezer.h>
 #include <linux/pid_namespace.h>
 #include <linux/nsproxy.h>
+#include <trace/sched.h>
 
 #include <asm/param.h>
 #include <asm/uaccess.h>
@@ -803,6 +804,8 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
        struct sigpending *pending;
        struct sigqueue *q;
 
+       trace_sched_signal_send(sig, t);
+
        assert_spin_locked(&t->sighand->siglock);
        if (!prepare_signal(sig, t))
                return 0;
@@ -1141,7 +1144,8 @@ static int kill_something_info(int sig, struct siginfo *info, pid_t pid)
                struct task_struct * p;
 
                for_each_process(p) {
-                       if (p->pid > 1 && !same_thread_group(p, current)) {
+                       if (task_pid_vnr(p) > 1 &&
+                                       !same_thread_group(p, current)) {
                                int err = group_send_sig_info(sig, info, p);
                                ++count;
                                if (err != -EPERM)
@@ -1338,6 +1342,8 @@ int do_notify_parent(struct task_struct *tsk, int sig)
        struct siginfo info;
        unsigned long flags;
        struct sighand_struct *psig;
+       struct task_cputime cputime;
+       int ret = sig;
 
        BUG_ON(sig == -1);
 
@@ -1367,10 +1373,9 @@ int do_notify_parent(struct task_struct *tsk, int sig)
 
        info.si_uid = tsk->uid;
 
-       info.si_utime = cputime_to_clock_t(cputime_add(tsk->utime,
-                                                      tsk->signal->utime));
-       info.si_stime = cputime_to_clock_t(cputime_add(tsk->stime,
-                                                      tsk->signal->stime));
+       thread_group_cputime(tsk, &cputime);
+       info.si_utime = cputime_to_jiffies(cputime.utime);
+       info.si_stime = cputime_to_jiffies(cputime.stime);
 
        info.si_status = tsk->exit_code & 0x7f;
        if (tsk->exit_code & 0x80)
@@ -1402,7 +1407,7 @@ int do_notify_parent(struct task_struct *tsk, int sig)
                 * is implementation-defined: we do (if you don't want
                 * it, just use SIG_IGN instead).
                 */
-               tsk->exit_signal = -1;
+               ret = tsk->exit_signal = -1;
                if (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN)
                        sig = -1;
        }
@@ -1411,7 +1416,7 @@ int do_notify_parent(struct task_struct *tsk, int sig)
        __wake_up_parent(tsk, tsk->parent);
        spin_unlock_irqrestore(&psig->siglock, flags);
 
-       return sig;
+       return ret;
 }
 
 static void do_notify_parent_cldstop(struct task_struct *tsk, int why)