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Diffstat (limited to 'arch/m32r')
-rw-r--r--arch/m32r/Kconfig3
-rw-r--r--arch/m32r/kernel/ptrace.c19
-rw-r--r--arch/m32r/kernel/vmlinux.lds.S5
-rw-r--r--arch/m32r/mm/fault.c23
4 files changed, 19 insertions, 31 deletions
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index c3bb8a755b00..8ccf3e47bff8 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -31,6 +31,9 @@ config GENERIC_IRQ_PROBE
config NO_IOPORT
def_bool y
+config NO_DMA
+ def_bool y
+
source "init/Kconfig"
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 5f02b3144875..57a92ef31a90 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -595,7 +595,6 @@ void ptrace_disable(struct task_struct *child)
static int
do_ptrace(long request, struct task_struct *child, long addr, long data)
{
- unsigned long tmp;
int ret;
switch (request) {
@@ -604,11 +603,7 @@ do_ptrace(long request, struct task_struct *child, long addr, long data)
*/
case PTRACE_PEEKTEXT:
case PTRACE_PEEKDATA:
- ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
- if (ret == sizeof(tmp))
- ret = put_user(tmp,(unsigned long __user *) data);
- else
- ret = -EIO;
+ ret = generic_ptrace_peekdata(child, addr, data);
break;
/*
@@ -624,15 +619,9 @@ do_ptrace(long request, struct task_struct *child, long addr, long data)
*/
case PTRACE_POKETEXT:
case PTRACE_POKEDATA:
- ret = access_process_vm(child, addr, &data, sizeof(data), 1);
- if (ret == sizeof(data)) {
- ret = 0;
- if (request == PTRACE_POKETEXT) {
- invalidate_cache();
- }
- } else {
- ret = -EIO;
- }
+ ret = generic_ptrace_pokedata(child, addr, data);
+ if (ret == 0 && request == PTRACE_POKETEXT)
+ invalidate_cache();
break;
/*
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index 4e2d5b9f0a9a..942a8c7a4417 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -110,10 +110,7 @@ SECTIONS
__initramfs_end = .;
#endif
- . = ALIGN(4096);
- __per_cpu_start = .;
- .data.percpu : { *(.data.percpu) }
- __per_cpu_end = .;
+ PERCPU(4096)
. = ALIGN(4096);
__init_end = .;
/* freed after init ends here */
diff --git a/arch/m32r/mm/fault.c b/arch/m32r/mm/fault.c
index f3935ba24946..676a1c443d28 100644
--- a/arch/m32r/mm/fault.c
+++ b/arch/m32r/mm/fault.c
@@ -80,6 +80,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
struct vm_area_struct * vma;
unsigned long page, addr;
int write;
+ int fault;
siginfo_t info;
/*
@@ -195,20 +196,18 @@ survive:
*/
addr = (address & PAGE_MASK);
set_thread_fault_code(error_code);
- switch (handle_mm_fault(mm, vma, addr, write)) {
- case VM_FAULT_MINOR:
- tsk->min_flt++;
- break;
- case VM_FAULT_MAJOR:
- tsk->maj_flt++;
- break;
- case VM_FAULT_SIGBUS:
- goto do_sigbus;
- case VM_FAULT_OOM:
+ fault = handle_mm_fault(mm, vma, addr, write);
+ if (unlikely(fault & VM_FAULT_ERROR)) {
+ if (fault & VM_FAULT_OOM)
goto out_of_memory;
- default:
- BUG();
+ else if (fault & VM_FAULT_SIGBUS)
+ goto do_sigbus;
+ BUG();
}
+ if (fault & VM_FAULT_MAJOR)
+ tsk->maj_flt++;
+ else
+ tsk->min_flt++;
set_thread_fault_code(0);
up_read(&mm->mmap_sem);
return;