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Diffstat (limited to 'arch/sh/kernel/sys_sh.c')
-rw-r--r--arch/sh/kernel/sys_sh.c101
1 files changed, 6 insertions, 95 deletions
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index 9061b86d73f..58dfc02c7af 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -22,101 +22,10 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/ipc.h>
-#include <asm/cacheflush.h>
+#include <asm/syscalls.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
-unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */
-EXPORT_SYMBOL(shm_align_mask);
-
-#ifdef CONFIG_MMU
-/*
- * To avoid cache aliases, we map the shared page with same color.
- */
-#define COLOUR_ALIGN(addr, pgoff) \
- ((((addr) + shm_align_mask) & ~shm_align_mask) + \
- (((pgoff) << PAGE_SHIFT) & shm_align_mask))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct mm_struct *mm = current->mm;
- struct vm_area_struct *vma;
- unsigned long start_addr;
- int do_colour_align;
-
- if (flags & MAP_FIXED) {
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
- if ((flags & MAP_SHARED) && (addr & shm_align_mask))
- return -EINVAL;
- return addr;
- }
-
- if (unlikely(len > TASK_SIZE))
- return -ENOMEM;
-
- do_colour_align = 0;
- if (filp || (flags & MAP_SHARED))
- do_colour_align = 1;
-
- if (addr) {
- if (do_colour_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
- addr = PAGE_ALIGN(addr);
-
- vma = find_vma(mm, addr);
- if (TASK_SIZE - len >= addr &&
- (!vma || addr + len <= vma->vm_start))
- return addr;
- }
-
- if (len > mm->cached_hole_size) {
- start_addr = addr = mm->free_area_cache;
- } else {
- mm->cached_hole_size = 0;
- start_addr = addr = TASK_UNMAPPED_BASE;
- }
-
-full_search:
- if (do_colour_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- else
- addr = PAGE_ALIGN(mm->free_area_cache);
-
- for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (unlikely(TASK_SIZE - len < addr)) {
- /*
- * Start a new search - just in case we missed
- * some holes.
- */
- if (start_addr != TASK_UNMAPPED_BASE) {
- start_addr = addr = TASK_UNMAPPED_BASE;
- mm->cached_hole_size = 0;
- goto full_search;
- }
- return -ENOMEM;
- }
- if (likely(!vma || addr + len <= vma->vm_start)) {
- /*
- * Remember the place where we stopped the search:
- */
- mm->free_area_cache = addr + len;
- return addr;
- }
- if (addr + mm->cached_hole_size < vma->vm_start)
- mm->cached_hole_size = vma->vm_start - addr;
-
- addr = vma->vm_end;
- if (do_colour_align)
- addr = COLOUR_ALIGN(addr, pgoff);
- }
-}
-#endif /* CONFIG_MMU */
-
static inline long
do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, int fd, unsigned long pgoff)
@@ -170,6 +79,8 @@ asmlinkage int sys_ipc(uint call, int first, int second,
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
+ trace_mark(kernel_arch_ipc_call, "call %u first %d", call, first);
+
if (call <= SEMTIMEDOP)
switch (call) {
case SEMOP:
@@ -186,7 +97,7 @@ asmlinkage int sys_ipc(uint call, int first, int second,
union semun fourth;
if (!ptr)
return -EINVAL;
- if (get_user(fourth.__pad, (void * __user *) ptr))
+ if (get_user(fourth.__pad, (void __user * __user *) ptr))
return -EFAULT;
return sys_semctl (first, second, third, fourth);
}
@@ -261,13 +172,13 @@ asmlinkage int sys_ipc(uint call, int first, int second,
return -EINVAL;
}
-asmlinkage int sys_uname(struct old_utsname * name)
+asmlinkage int sys_uname(struct old_utsname __user *name)
{
int err;
if (!name)
return -EFAULT;
down_read(&uts_sem);
- err = copy_to_user(name, utsname(), sizeof (*name));
+ err = copy_to_user(name, utsname(), sizeof(*name));
up_read(&uts_sem);
return err?-EFAULT:0;
}