drm/fb: use printk to print out the switching to text mode error.

[safe/jmp/linux-2.6] / drivers / connector / cn_proc.c

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 969d2b4..a7f046b 100644 (file)
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -24,8 +24,12 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/ktime.h>
 #include <linux/init.h>
+#include <linux/connector.h>
+#include <linux/gfp.h>
 #include <asm/atomic.h>
+#include <asm/unaligned.h>
 
 #include <linux/cn_proc.h>
 
@@ -34,14 +38,14 @@
 static atomic_t proc_event_num_listeners = ATOMIC_INIT(0);
 static struct cb_id cn_proc_event_id = { CN_IDX_PROC, CN_VAL_PROC };
 
-/* proc_counts is used as the sequence number of the netlink message */
+/* proc_event_counts is used as the sequence number of the netlink message */
 static DEFINE_PER_CPU(__u32, proc_event_counts) = { 0 };
 
 static inline void get_seq(__u32 *ts, int *cpu)
 {
        *ts = get_cpu_var(proc_event_counts)++;
        *cpu = smp_processor_id();
-       put_cpu_var(proc_counts);
+       put_cpu_var(proc_event_counts);
 }
 
 void proc_fork_connector(struct task_struct *task)
@@ -49,6 +53,7 @@ void proc_fork_connector(struct task_struct *task)
        struct cn_msg *msg;
        struct proc_event *ev;
        __u8 buffer[CN_PROC_MSG_SIZE];
+       struct timespec ts;
 
        if (atomic_read(&proc_event_num_listeners) < 1)
                return;
@@ -56,7 +61,8 @@ void proc_fork_connector(struct task_struct *task)
        msg = (struct cn_msg*)buffer;
        ev = (struct proc_event*)msg->data;
        get_seq(&msg->seq, &ev->cpu);
-       getnstimestamp(&ev->timestamp);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
        ev->what = PROC_EVENT_FORK;
        ev->event_data.fork.parent_pid = task->real_parent->pid;
        ev->event_data.fork.parent_tgid = task->real_parent->tgid;
@@ -74,6 +80,7 @@ void proc_exec_connector(struct task_struct *task)
 {
        struct cn_msg *msg;
        struct proc_event *ev;
+       struct timespec ts;
        __u8 buffer[CN_PROC_MSG_SIZE];
 
        if (atomic_read(&proc_event_num_listeners) < 1)
@@ -82,7 +89,8 @@ void proc_exec_connector(struct task_struct *task)
        msg = (struct cn_msg*)buffer;
        ev = (struct proc_event*)msg->data;
        get_seq(&msg->seq, &ev->cpu);
-       getnstimestamp(&ev->timestamp);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
        ev->what = PROC_EVENT_EXEC;
        ev->event_data.exec.process_pid = task->pid;
        ev->event_data.exec.process_tgid = task->tgid;
@@ -98,6 +106,8 @@ void proc_id_connector(struct task_struct *task, int which_id)
        struct cn_msg *msg;
        struct proc_event *ev;
        __u8 buffer[CN_PROC_MSG_SIZE];
+       struct timespec ts;
+       const struct cred *cred;
 
        if (atomic_read(&proc_event_num_listeners) < 1)
                return;
@@ -107,16 +117,47 @@ void proc_id_connector(struct task_struct *task, int which_id)
        ev->what = which_id;
        ev->event_data.id.process_pid = task->pid;
        ev->event_data.id.process_tgid = task->tgid;
+       rcu_read_lock();
+       cred = __task_cred(task);
        if (which_id == PROC_EVENT_UID) {
-               ev->event_data.id.r.ruid = task->uid;
-               ev->event_data.id.e.euid = task->euid;
+               ev->event_data.id.r.ruid = cred->uid;
+               ev->event_data.id.e.euid = cred->euid;
        } else if (which_id == PROC_EVENT_GID) {
-               ev->event_data.id.r.rgid = task->gid;
-               ev->event_data.id.e.egid = task->egid;
-       } else
+               ev->event_data.id.r.rgid = cred->gid;
+               ev->event_data.id.e.egid = cred->egid;
+       } else {
+               rcu_read_unlock();
                return;
+       }
+       rcu_read_unlock();
+       get_seq(&msg->seq, &ev->cpu);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+
+       memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
+       msg->ack = 0; /* not used */
+       msg->len = sizeof(*ev);
+       cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+}
+
+void proc_sid_connector(struct task_struct *task)
+{
+       struct cn_msg *msg;
+       struct proc_event *ev;
+       struct timespec ts;
+       __u8 buffer[CN_PROC_MSG_SIZE];
+
+       if (atomic_read(&proc_event_num_listeners) < 1)
+               return;
+
+       msg = (struct cn_msg *)buffer;
+       ev = (struct proc_event *)msg->data;
        get_seq(&msg->seq, &ev->cpu);
-       getnstimestamp(&ev->timestamp);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+       ev->what = PROC_EVENT_SID;
+       ev->event_data.sid.process_pid = task->pid;
+       ev->event_data.sid.process_tgid = task->tgid;
 
        memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
        msg->ack = 0; /* not used */
@@ -129,6 +170,7 @@ void proc_exit_connector(struct task_struct *task)
        struct cn_msg *msg;
        struct proc_event *ev;
        __u8 buffer[CN_PROC_MSG_SIZE];
+       struct timespec ts;
 
        if (atomic_read(&proc_event_num_listeners) < 1)
                return;
@@ -136,7 +178,8 @@ void proc_exit_connector(struct task_struct *task)
        msg = (struct cn_msg*)buffer;
        ev = (struct proc_event*)msg->data;
        get_seq(&msg->seq, &ev->cpu);
-       getnstimestamp(&ev->timestamp);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
        ev->what = PROC_EVENT_EXIT;
        ev->event_data.exit.process_pid = task->pid;
        ev->event_data.exit.process_tgid = task->tgid;
@@ -162,6 +205,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
        struct cn_msg *msg;
        struct proc_event *ev;
        __u8 buffer[CN_PROC_MSG_SIZE];
+       struct timespec ts;
 
        if (atomic_read(&proc_event_num_listeners) < 1)
                return;
@@ -169,7 +213,8 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
        msg = (struct cn_msg*)buffer;
        ev = (struct proc_event*)msg->data;
        msg->seq = rcvd_seq;
-       getnstimestamp(&ev->timestamp);
+       ktime_get_ts(&ts); /* get high res monotonic timestamp */
+       put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
        ev->cpu = -1;
        ev->what = PROC_EVENT_NONE;
        ev->event_data.ack.err = err;
@@ -183,9 +228,9 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
  * cn_proc_mcast_ctl
  * @data: message sent from userspace via the connector
  */
-static void cn_proc_mcast_ctl(void *data)
+static void cn_proc_mcast_ctl(struct cn_msg *msg,
+                             struct netlink_skb_parms *nsp)
 {
-       struct cn_msg *msg = data;
        enum proc_cn_mcast_op *mc_op = NULL;
        int err = 0;