Signed-off-by: vishnu.ps <vishnu.ps@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
vishnu.ps 2014-10-09 15:26:29 -07:00 коммит произвёл Linus Torvalds
Родитель bf0dea23a9
Коммит cc71aba348
1 изменённых файлов: 19 добавлений и 18 удалений

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@ -70,7 +70,7 @@ static void unmap_region(struct mm_struct *mm,
* MAP_SHARED r: (no) no r: (yes) yes r: (no) yes r: (no) yes
* w: (no) no w: (no) no w: (yes) yes w: (no) no
* x: (no) no x: (no) yes x: (no) yes x: (yes) yes
*
*
* MAP_PRIVATE r: (no) no r: (yes) yes r: (no) yes r: (no) yes
* w: (no) no w: (no) no w: (copy) copy w: (no) no
* x: (no) no x: (no) yes x: (no) yes x: (yes) yes
@ -741,7 +741,7 @@ again: remove_next = 1 + (end > next->vm_end);
* split_vma inserting another: so it must be
* mprotect case 4 shifting the boundary down.
*/
adjust_next = - ((vma->vm_end - end) >> PAGE_SHIFT);
adjust_next = -((vma->vm_end - end) >> PAGE_SHIFT);
exporter = vma;
importer = next;
}
@ -1010,7 +1010,7 @@ can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags,
struct vm_area_struct *vma_merge(struct mm_struct *mm,
struct vm_area_struct *prev, unsigned long addr,
unsigned long end, unsigned long vm_flags,
struct anon_vma *anon_vma, struct file *file,
struct anon_vma *anon_vma, struct file *file,
pgoff_t pgoff, struct mempolicy *policy)
{
pgoff_t pglen = (end - addr) >> PAGE_SHIFT;
@ -1036,7 +1036,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
* Can it merge with the predecessor?
*/
if (prev && prev->vm_end == addr &&
mpol_equal(vma_policy(prev), policy) &&
mpol_equal(vma_policy(prev), policy) &&
can_vma_merge_after(prev, vm_flags,
anon_vma, file, pgoff)) {
/*
@ -1064,7 +1064,7 @@ struct vm_area_struct *vma_merge(struct mm_struct *mm,
* Can this new request be merged in front of next?
*/
if (next && end == next->vm_start &&
mpol_equal(policy, vma_policy(next)) &&
mpol_equal(policy, vma_policy(next)) &&
can_vma_merge_before(next, vm_flags,
anon_vma, file, pgoff+pglen)) {
if (prev && addr < prev->vm_end) /* case 4 */
@ -1235,7 +1235,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
unsigned long flags, unsigned long pgoff,
unsigned long *populate)
{
struct mm_struct * mm = current->mm;
struct mm_struct *mm = current->mm;
vm_flags_t vm_flags;
*populate = 0;
@ -1263,7 +1263,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
/* offset overflow? */
if ((pgoff + (len >> PAGE_SHIFT)) < pgoff)
return -EOVERFLOW;
return -EOVERFLOW;
/* Too many mappings? */
if (mm->map_count > sysctl_max_map_count)
@ -1921,7 +1921,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
info.align_mask = 0;
return vm_unmapped_area(&info);
}
#endif
#endif
/*
* This mmap-allocator allocates new areas top-down from below the
@ -2321,13 +2321,13 @@ int expand_stack(struct vm_area_struct *vma, unsigned long address)
}
struct vm_area_struct *
find_extend_vma(struct mm_struct * mm, unsigned long addr)
find_extend_vma(struct mm_struct *mm, unsigned long addr)
{
struct vm_area_struct * vma;
struct vm_area_struct *vma;
unsigned long start;
addr &= PAGE_MASK;
vma = find_vma(mm,addr);
vma = find_vma(mm, addr);
if (!vma)
return NULL;
if (vma->vm_start <= addr)
@ -2376,7 +2376,7 @@ static void unmap_region(struct mm_struct *mm,
struct vm_area_struct *vma, struct vm_area_struct *prev,
unsigned long start, unsigned long end)
{
struct vm_area_struct *next = prev? prev->vm_next: mm->mmap;
struct vm_area_struct *next = prev ? prev->vm_next : mm->mmap;
struct mmu_gather tlb;
lru_add_drain();
@ -2423,7 +2423,7 @@ detach_vmas_to_be_unmapped(struct mm_struct *mm, struct vm_area_struct *vma,
* __split_vma() bypasses sysctl_max_map_count checking. We use this on the
* munmap path where it doesn't make sense to fail.
*/
static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long addr, int new_below)
{
struct vm_area_struct *new;
@ -2512,7 +2512,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start)
return -EINVAL;
if ((len = PAGE_ALIGN(len)) == 0)
len = PAGE_ALIGN(len);
if (len == 0)
return -EINVAL;
/* Find the first overlapping VMA */
@ -2558,7 +2559,7 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len)
if (error)
return error;
}
vma = prev? prev->vm_next: mm->mmap;
vma = prev ? prev->vm_next : mm->mmap;
/*
* unlock any mlock()ed ranges before detaching vmas
@ -2621,10 +2622,10 @@ static inline void verify_mm_writelocked(struct mm_struct *mm)
*/
static unsigned long do_brk(unsigned long addr, unsigned long len)
{
struct mm_struct * mm = current->mm;
struct vm_area_struct * vma, * prev;
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma, *prev;
unsigned long flags;
struct rb_node ** rb_link, * rb_parent;
struct rb_node **rb_link, *rb_parent;
pgoff_t pgoff = addr >> PAGE_SHIFT;
int error;