Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

13 files changed, 53 insertions, 70 deletions

diff --git a/arch/cris/arch-v10/README.mm b/arch/cris/arch-v10/README.mm
index 517d1f027fe8..67731d75cb51 100644
--- a/arch/cris/arch-v10/README.mm
+++ b/arch/cris/arch-v10/README.mm
@@ -38,7 +38,7 @@ space. We also use it to keep the user-mode virtual mapping in the same
 map during kernel-mode, so that the kernel easily can access the corresponding
 user-mode process' data.
 
-As a comparision, the Linux/i386 2.0 puts the kernel and physical RAM at
+As a comparison, the Linux/i386 2.0 puts the kernel and physical RAM at
 address 0, overlapping with the user-mode virtual space, so that descriptor
 registers are needed for each memory access to specify which MMU space to
 map through. That changed in 2.2, putting the kernel/physical RAM at 
diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c
index b2079703af7e..a4bbdfd37bd8 100644
--- a/arch/cris/arch-v10/drivers/axisflashmap.c
+++ b/arch/cris/arch-v10/drivers/axisflashmap.c
@@ -234,7 +234,6 @@ static struct mtd_info *flash_probe(void)
         }
 
         if (mtd_cse0 && mtd_cse1) {
-#ifdef CONFIG_MTD_CONCAT
                 struct mtd_info *mtds[] = { mtd_cse0, mtd_cse1 };
 
                 /* Since the concatenation layer adds a small overhead we
@@ -246,11 +245,6 @@ static struct mtd_info *flash_probe(void)
                  */
                 mtd_cse = mtd_concat_create(mtds, ARRAY_SIZE(mtds),
                                             "cse0+cse1");
-#else
-                printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "
-                       "(mis)configuration!\n", map_cse0.name, map_cse1.name);
-                mtd_cse = NULL;
-#endif
                 if (!mtd_cse) {
                         printk(KERN_ERR "%s and %s: Concatenation failed!\n",
                                map_cse0.name, map_cse1.name);
@@ -378,7 +372,7 @@ static int __init init_axis_flash(void)
 #ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE
         if (mymtd) {
                 main_partition.size = mymtd->size;
-                err = add_mtd_partitions(mymtd, &main_partition, 1);
+                err = mtd_device_register(mymtd, &main_partition, 1);
                 if (err)
                         panic("axisflashmap: Could not initialize "
                               "partition for whole main mtd device!\n");
@@ -388,10 +382,12 @@ static int __init init_axis_flash(void)
         if (mymtd) {
                 if (use_default_ptable) {
                         printk(KERN_INFO " Using default partition table.\n");
-                        err = add_mtd_partitions(mymtd, axis_default_partitions,
-                                                 NUM_DEFAULT_PARTITIONS);
+                        err = mtd_device_register(mymtd,
+                                                  axis_default_partitions,
+                                                  NUM_DEFAULT_PARTITIONS);
                 } else {
-                        err = add_mtd_partitions(mymtd, axis_partitions, pidx);
+                        err = mtd_device_register(mymtd, axis_partitions,
+                                                  pidx);
                 }
 
                 if (err)
diff --git a/arch/cris/arch-v10/drivers/ds1302.c b/arch/cris/arch-v10/drivers/ds1302.c
index 884275629ef7..3d655dcc65da 100644
--- a/arch/cris/arch-v10/drivers/ds1302.c
+++ b/arch/cris/arch-v10/drivers/ds1302.c
@@ -19,7 +19,7 @@
 #include <linux/module.h>
 #include <linux/miscdevice.h>
 #include <linux/delay.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/bcd.h>
 #include <linux/capability.h>
 
@@ -34,6 +34,7 @@
 
 #define RTC_MAJOR_NR 121 /* local major, change later */
 
+static DEFINE_MUTEX(ds1302_mutex);
 static const char ds1302_name[] = "ds1302";
 
 /* The DS1302 might be connected to different bits on different products. 
@@ -357,9 +358,9 @@ static long rtc_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned lon
 {
         int ret;
 
-        lock_kernel();
+        mutex_lock(&ds1302_mutex);
         ret = rtc_ioctl(file, cmd, arg);
-        unlock_kernel();
+        mutex_unlock(&ds1302_mutex);
 
         return ret;
 }
@@ -387,6 +388,7 @@ print_rtc_status(void)
 static const struct file_operations rtc_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = rtc_unlocked_ioctl,
+        .llseek         = noop_llseek,
 }; 
 
 /* Probe for the chip by writing something to its RAM and try reading it back. */
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index a07b6d25b0c7..a276f0811731 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -745,6 +745,7 @@ static const struct file_operations gpio_fops = {
         .write          = gpio_write,
         .open           = gpio_open,
         .release        = gpio_release,
+        .llseek         = noop_llseek,
 };
 
 static void ioif_watcher(const unsigned int gpio_in_available,
diff --git a/arch/cris/arch-v10/drivers/i2c.c b/arch/cris/arch-v10/drivers/i2c.c
index 77a941813819..c413539d4205 100644
--- a/arch/cris/arch-v10/drivers/i2c.c
+++ b/arch/cris/arch-v10/drivers/i2c.c
@@ -617,6 +617,7 @@ static const struct file_operations i2c_fops = {
         .unlocked_ioctl = i2c_ioctl,
         .open           = i2c_open,
         .release        = i2c_release,
+        .llseek         = noop_llseek,
 };
 
 int __init
diff --git a/arch/cris/arch-v10/drivers/pcf8563.c b/arch/cris/arch-v10/drivers/pcf8563.c
index 7dcb1f85f42b..1391b731ad1c 100644
--- a/arch/cris/arch-v10/drivers/pcf8563.c
+++ b/arch/cris/arch-v10/drivers/pcf8563.c
@@ -27,7 +27,6 @@
 #include <linux/delay.h>
 #include <linux/bcd.h>
 #include <linux/mutex.h>
-#include <linux/smp_lock.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -49,6 +48,7 @@
 #define rtc_read(x) i2c_readreg(RTC_I2C_READ, x)
 #define rtc_write(x,y) i2c_writereg(RTC_I2C_WRITE, x, y)
 
+static DEFINE_MUTEX(pcf8563_mutex);
 static DEFINE_MUTEX(rtc_lock); /* Protect state etc */
 
 static const unsigned char days_in_month[] =
@@ -64,6 +64,7 @@ static int voltage_low;
 static const struct file_operations pcf8563_fops = {
         .owner = THIS_MODULE,
         .unlocked_ioctl = pcf8563_unlocked_ioctl,
+        .llseek         = noop_llseek,
 };
 
 unsigned char
@@ -343,9 +344,9 @@ static long pcf8563_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned
 {
         int ret;
 
-        lock_kernel();
-        return pcf8563_ioctl(filp, cmd, arg);
-        unlock_kernel();
+        mutex_lock(&pcf8563_mutex);
+        ret = pcf8563_ioctl(filp, cmd, arg);
+        mutex_unlock(&pcf8563_mutex);
 
         return ret;
 }
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index ee2dd4323daf..850265373611 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -20,7 +20,7 @@
 #include <linux/interrupt.h>
 #include <linux/poll.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
 #include <linux/timer.h>
 #include <asm/irq.h>
 #include <asm/dma.h>
@@ -31,7 +31,7 @@
 #include <asm/sync_serial.h>
 #include <arch/io_interface_mux.h>
 
-/* The receiver is a bit tricky beacuse of the continuous stream of data.*/
+/* The receiver is a bit tricky because of the continuous stream of data.*/
 /*                                                                       */
 /* Three DMA descriptors are linked together. Each DMA descriptor is     */
 /* responsible for port->bufchunk of a common buffer.                    */
@@ -149,6 +149,7 @@ struct sync_port {
 };
 
 
+static DEFINE_MUTEX(sync_serial_mutex);
 static int etrax_sync_serial_init(void);
 static void initialize_port(int portnbr);
 static inline int sync_data_avail(struct sync_port *port);
@@ -250,7 +251,8 @@ static const struct file_operations sync_serial_fops = {
         .poll           = sync_serial_poll,
         .unlocked_ioctl = sync_serial_ioctl,
         .open           = sync_serial_open,
-        .release        = sync_serial_release
+        .release        = sync_serial_release,
+        .llseek         = noop_llseek,
 };
 
 static int __init etrax_sync_serial_init(void)
@@ -445,7 +447,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
         int mode;
         int err = -EBUSY;
 
-        lock_kernel();
+        mutex_lock(&sync_serial_mutex);
         DEBUG(printk(KERN_DEBUG "Open sync serial port %d\n", dev));
 
         if (dev < 0 || dev >= NUMBER_OF_PORTS || !ports[dev].enabled) {
@@ -626,7 +628,7 @@ static int sync_serial_open(struct inode *inode, struct file *file)
         ret = 0;
         
 out:
-        unlock_kernel();
+        mutex_unlock(&sync_serial_mutex);
         return ret;
 }
 
@@ -961,9 +963,9 @@ static long sync_serial_ioctl(struct file *file,
 {
         long ret;
 
-        lock_kernel();
+        mutex_lock(&sync_serial_mutex);
         ret = sync_serial_ioctl_unlocked(file, cmd, arg);
-        unlock_kernel();
+        mutex_unlock(&sync_serial_mutex);
 
         return ret;
 }
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 0d6420d087fd..1161883eb582 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -937,6 +937,7 @@ sys_call_table:
         .long sys_inotify_init1
         .long sys_preadv
         .long sys_pwritev
+        .long sys_setns                 /* 335 */
 
         /*
          * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/cris/arch-v10/kernel/irq.c b/arch/cris/arch-v10/kernel/irq.c
index a0c0df8be9c8..907cfb5a873d 100644
--- a/arch/cris/arch-v10/kernel/irq.c
+++ b/arch/cris/arch-v10/kernel/irq.c
@@ -104,43 +104,21 @@ static void (*interrupt[NR_IRQS])(void) = {
         IRQ31_interrupt
 };
 
-static void enable_crisv10_irq(unsigned int irq);
-
-static unsigned int startup_crisv10_irq(unsigned int irq)
-{
-        enable_crisv10_irq(irq);
-        return 0;
-}
-
-#define shutdown_crisv10_irq    disable_crisv10_irq
-
-static void enable_crisv10_irq(unsigned int irq)
-{
-        crisv10_unmask_irq(irq);
-}
-
-static void disable_crisv10_irq(unsigned int irq)
-{
-        crisv10_mask_irq(irq);
-}
-
-static void ack_crisv10_irq(unsigned int irq)
+static void enable_crisv10_irq(struct irq_data *data)
 {
+        crisv10_unmask_irq(data->irq);
 }
 
-static void end_crisv10_irq(unsigned int irq)
+static void disable_crisv10_irq(struct irq_data *data)
 {
+        crisv10_mask_irq(data->irq);
 }
 
 static struct irq_chip crisv10_irq_type = {
-        .name =        "CRISv10",
-        .startup =     startup_crisv10_irq,
-        .shutdown =    shutdown_crisv10_irq,
-        .enable =      enable_crisv10_irq,
-        .disable =     disable_crisv10_irq,
-        .ack =         ack_crisv10_irq,
-        .end =         end_crisv10_irq,
-        .set_affinity = NULL
+        .name           = "CRISv10",
+        .irq_shutdown   = disable_crisv10_irq,
+        .irq_enable     = enable_crisv10_irq,
+        .irq_disable    = disable_crisv10_irq,
 };
 
 void weird_irq(void);
@@ -221,7 +199,8 @@ init_IRQ(void)
 
         /* Initialize IRQ handler descriptors. */
         for(i = 2; i < NR_IRQS; i++) {
-                irq_desc[i].chip = &crisv10_irq_type;
+                irq_set_chip_and_handler(i, &crisv10_irq_type,
+                                         handle_simple_irq);
                 set_int_vector(i, interrupt[i]);
         }
 
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index e70c804e9377..320065f3cbe5 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -76,9 +76,11 @@ ptrace_disable(struct task_struct *child)
  * (in user space) where the result of the ptrace call is written (instead of
  * being returned).
  */
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request,
+                 unsigned long addr, unsigned long data)
 {
         int ret;
+        unsigned int regno = addr >> 2;
         unsigned long __user *datap = (unsigned long __user *)data;
 
         switch (request) {
@@ -93,10 +95,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         unsigned long tmp;
 
                         ret = -EIO;
-                        if ((addr & 3) || addr < 0 || addr > PT_MAX << 2)
+                        if ((addr & 3) || regno > PT_MAX)
                                 break;
 
-                        tmp = get_reg(child, addr >> 2);
+                        tmp = get_reg(child, regno);
                         ret = put_user(tmp, datap);
                         break;
                 }
@@ -110,19 +112,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 /* Write the word at location address in the USER area. */
                 case PTRACE_POKEUSR:
                         ret = -EIO;
-                        if ((addr & 3) || addr < 0 || addr > PT_MAX << 2)
+                        if ((addr & 3) || regno > PT_MAX)
                                 break;
 
-                        addr >>= 2;
-
-                        if (addr == PT_DCCR) {
+                        if (regno == PT_DCCR) {
                                 /* don't allow the tracing process to change stuff like
                                  * interrupt enable, kernel/user bit, dma enables etc.
                                  */
                                 data &= DCCR_MASK;
                                 data |= get_reg(child, PT_DCCR) & ~DCCR_MASK;
                         }
-                        if (put_reg(child, addr, data))
+                        if (put_reg(child, regno, data))
                                 break;
                         ret = 0;
                         break;
@@ -141,7 +141,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                                         break;
                                 }
                                 
-                                data += sizeof(long);
+                                datap++;
                         }
 
                         break;
@@ -165,7 +165,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                                 }
                                 
                                 put_reg(child, i, tmp);
-                                data += sizeof(long);
+                                datap++;
                         }
                         
                         break;
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index b6be705c2a3e..e78fe49a9849 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -537,7 +537,7 @@ void do_signal(int canrestart, struct pt_regs *regs)
                         RESTART_CRIS_SYS(regs);
                 }
                 if (regs->r10 == -ERESTART_RESTARTBLOCK) {
-                        regs->r10 = __NR_restart_syscall;
+                        regs->r9 = __NR_restart_syscall;
                         regs->irp -= 2;
                 }
         }
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index 00eb36f8debf..20c85b5dc7d0 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -140,7 +140,7 @@ stop_watchdog(void)
 
 /*
  * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
+ * as well as call the "xtime_update()" routine every clocktick
  */
 
 //static unsigned short myjiff; /* used by our debug routine print_timestamp */
@@ -176,7 +176,7 @@ timer_interrupt(int irq, void *dev_id)
 
         /* call the real timer interrupt handler */
 
-        do_timer(1);
+        xtime_update(1);
         
         cris_do_profile(regs); /* Save profiling information */
         return IRQ_HANDLED;
diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c
index baa746ce4e74..e7f8066105aa 100644
--- a/arch/cris/arch-v10/mm/init.c
+++ b/arch/cris/arch-v10/mm/init.c
@@ -241,7 +241,7 @@ flush_etrax_cacherange(void *startadr, int length)
 }
 
 /* Due to a bug in Etrax100(LX) all versions, receiving DMA buffers
- * will occationally corrupt certain CPU writes if the DMA buffers
+ * will occasionally corrupt certain CPU writes if the DMA buffers
  * happen to be hot in the cache.
  * 
  * As a workaround, we have to flush the relevant parts of the cache