7 files changed, 21 insertions, 144 deletions

diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c
index 9f572229d318..9604f7758f9a 100644
--- a/arch/avr32/kernel/irq.c
+++ b/arch/avr32/kernel/irq.c
@@ -16,15 +16,6 @@
 #include <linux/seq_file.h>
 #include <linux/sysdev.h>
 
-/*
- * 'what should we do if we get a hw irq event on an illegal vector'.
- * each architecture has to answer this themselves.
- */
-void ack_bad_irq(unsigned int irq)
-{
-        printk("unexpected IRQ %u\n", irq);
-}
-
 /* May be overridden by platform code */
 int __weak nmi_enable(void)
 {
@@ -51,7 +42,7 @@ int show_interrupts(struct seq_file *p, void *v)
         }
 
         if (i < NR_IRQS) {
-                spin_lock_irqsave(&irq_desc[i].lock, flags);
+                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
                 action = irq_desc[i].action;
                 if (!action)
                         goto unlock;
@@ -66,7 +57,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
                 seq_putc(p, '\n');
         unlock:
-                spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
         }
 
         return 0;
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 93c0342530a0..2d76515745a4 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -11,6 +11,7 @@
 #include <linux/fs.h>
 #include <linux/pm.h>
 #include <linux/ptrace.h>
+#include <linux/slab.h>
 #include <linux/reboot.h>
 #include <linux/tick.h>
 #include <linux/uaccess.h>
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c
index 1fed38fcf594..5e73c25f8f85 100644
--- a/arch/avr32/kernel/ptrace.c
+++ b/arch/avr32/kernel/ptrace.c
@@ -28,9 +28,9 @@ static struct pt_regs *get_user_regs(struct task_struct *tsk)
                                   THREAD_SIZE - sizeof(struct pt_regs));
 }
 
-static void ptrace_single_step(struct task_struct *tsk)
+void user_enable_single_step(struct task_struct *tsk)
 {
-        pr_debug("ptrace_single_step: pid=%u, PC=0x%08lx, SR=0x%08lx\n",
+        pr_debug("user_enable_single_step: pid=%u, PC=0x%08lx, SR=0x%08lx\n",
                  tsk->pid, task_pt_regs(tsk)->pc, task_pt_regs(tsk)->sr);
 
         /*
@@ -49,6 +49,11 @@ static void ptrace_single_step(struct task_struct *tsk)
         set_tsk_thread_flag(tsk, TIF_SINGLE_STEP);
 }
 
+void user_disable_single_step(struct task_struct *child)
+{
+        /* XXX(hch): a no-op here seems wrong.. */
+}
+
 /*
  * Called by kernel/ptrace.c when detaching
  *
@@ -167,50 +172,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = ptrace_write_user(child, addr, data);
                 break;
 
-        /* continue and stop at next (return from) syscall */
-        case PTRACE_SYSCALL:
-        /* restart after signal */
-        case PTRACE_CONT:
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                if (request == PTRACE_SYSCALL)
-                        set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                else
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                child->exit_code = data;
-                /* XXX: Are we sure no breakpoints are active here? */
-                wake_up_process(child);
-                ret = 0;
-                break;
-
-        /*
-         * Make the child exit. Best I can do is send it a
-         * SIGKILL. Perhaps it should be put in the status that it
-         * wants to exit.
-         */
-        case PTRACE_KILL:
-                ret = 0;
-                if (child->exit_state == EXIT_ZOMBIE)
-                        break;
-                child->exit_code = SIGKILL;
-                wake_up_process(child);
-                break;
-
-        /*
-         * execute single instruction.
-         */
-        case PTRACE_SINGLESTEP:
-                ret = -EIO;
-                if (!valid_signal(data))
-                        break;
-                clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                ptrace_single_step(child);
-                child->exit_code = data;
-                wake_up_process(child);
-                ret = 0;
-                break;
-
         case PTRACE_GETREGS:
                 ret = ptrace_getregs(child, (void __user *)data);
                 break;
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c
index 5d2daeaf356f..459349b5ed5a 100644
--- a/arch/avr32/kernel/sys_avr32.c
+++ b/arch/avr32/kernel/sys_avr32.c
@@ -5,39 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/mm.h>
 #include <linux/unistd.h>
 
-#include <asm/mman.h>
-#include <asm/uaccess.h>
-#include <asm/syscalls.h>
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-                          unsigned long prot, unsigned long flags,
-                          unsigned long fd, off_t offset)
-{
-        int error = -EBADF;
-        struct file *file = NULL;
-
-        flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-        if (!(flags & MAP_ANONYMOUS)) {
-                file = fget(fd);
-                if (!file)
-                        return error;
-        }
-
-        down_write(&current->mm->mmap_sem);
-        error = do_mmap_pgoff(file, addr, len, prot, flags, offset);
-        up_write(&current->mm->mmap_sem);
-
-        if (file)
-                fput(file);
-        return error;
-}
-
 int kernel_execve(const char *file, char **argv, char **envp)
 {
         register long scno asm("r8") = __NR_execve;
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S
index f7244cd02fbb..0447a3e2ba64 100644
--- a/arch/avr32/kernel/syscall-stubs.S
+++ b/arch/avr32/kernel/syscall-stubs.S
@@ -61,7 +61,7 @@ __sys_execve:
 __sys_mmap2:
         pushm   lr
         st.w    --sp, ARG6
-        call    sys_mmap2
+        call    sys_mmap_pgoff
         sub     sp, -4
         popm    pc
 
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index 7ee0057613b3..e76bad16b0f0 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -295,4 +295,5 @@ sys_call_table:
         .long   sys_signalfd
         .long   sys_ni_syscall          /* 280, was sys_timerfd */
         .long   sys_eventfd
+        .long   sys_recvmmsg
         .long   sys_ni_syscall          /* r8 is saturated at nr_syscalls */
diff --git a/arch/avr32/kernel/vmlinux.lds.S b/arch/avr32/kernel/vmlinux.lds.S
index c4b56654349a..9cd2bd91d64a 100644
--- a/arch/avr32/kernel/vmlinux.lds.S
+++ b/arch/avr32/kernel/vmlinux.lds.S
@@ -39,30 +39,10 @@ SECTIONS
                 __tagtable_begin = .;
                         *(.taglist.init)
                 __tagtable_end = .;
-                        INIT_DATA
-                . = ALIGN(16);
-                __setup_start = .;
-                        *(.init.setup)
-                __setup_end = .;
-                . = ALIGN(4);
-                __initcall_start = .;
-                        INITCALLS
-                __initcall_end = .;
-                __con_initcall_start = .;
-                        *(.con_initcall.init)
-                __con_initcall_end = .;
-                __security_initcall_start = .;
-                        *(.security_initcall.init)
-                __security_initcall_end = .;
-#ifdef CONFIG_BLK_DEV_INITRD
-                . = ALIGN(32);
-                __initramfs_start = .;
-                        *(.init.ramfs)
-                __initramfs_end = .;
-#endif
-                . = ALIGN(PAGE_SIZE);
-                __init_end = .;
         }
+        INIT_DATA_SECTION(16)
+        . = ALIGN(PAGE_SIZE);
+        __init_end = .;
 
         .text           : AT(ADDR(.text) - LOAD_OFFSET) {
                 _evba = .;
@@ -78,34 +58,16 @@ SECTIONS
                 _etext = .;
         } = 0xd703d703
 
-        . = ALIGN(4);
-        __ex_table      : AT(ADDR(__ex_table) - LOAD_OFFSET) {
-                __start___ex_table = .;
-                *(__ex_table)
-                __stop___ex_table = .;
-        }
-
+        EXCEPTION_TABLE(4)
         RODATA
 
-        . = ALIGN(THREAD_SIZE);
-
         .data           : AT(ADDR(.data) - LOAD_OFFSET) {
                 _data = .;
                 _sdata = .;
-                /*
-                 * First, the init task union, aligned to an 8K boundary.
-                 */
-                *(.data.init_task)
 
-                /* Then, the page-aligned data */
-                . = ALIGN(PAGE_SIZE);
-                *(.data.page_aligned)
-
-                /* Then, the cacheline aligned data */
-                . = ALIGN(L1_CACHE_BYTES);
-                *(.data.cacheline_aligned)
-
-                /* And the rest... */
+                INIT_TASK_DATA(THREAD_SIZE)
+                PAGE_ALIGNED_DATA(PAGE_SIZE);
+                CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
                 *(.data.rel*)
                 DATA_DATA
                 CONSTRUCTORS
@@ -113,16 +75,8 @@ SECTIONS
                 _edata = .;
         }
 
-
-        . = ALIGN(8);
-        .bss            : AT(ADDR(.bss) - LOAD_OFFSET) {
-                __bss_start = .;
-                *(.bss)
-                *(COMMON)
-                . = ALIGN(8);
-                __bss_stop = .;
-                _end = .;
-        }
+        BSS_SECTION(0, 8, 8)
+        _end = .;
 
         DWARF_DEBUG