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authormerge <null@invalid>2009-01-22 13:55:32 +0000
committerAndy Green <agreen@octopus.localdomain>2009-01-22 13:55:32 +0000
commitaa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch)
treefbb786d0ac6f8a774fd834e9ce951197e60fbffa /arch/sh/kernel/sys_sh.c
parentf2d78193eae5dccd3d588d2c8ea0866efc368332 (diff)
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'arch/sh/kernel/sys_sh.c')
-rw-r--r--arch/sh/kernel/sys_sh.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index 38f098c9c72..58dfc02c7af 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -22,102 +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)