diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 65616941a38..eda9642254a 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -201,20 +201,9 @@ static long region_count(struct list_head *head, long f, long t) /* * Convert the address within this vma to the page offset within - * the mapping, in base page units. - */ -static pgoff_t vma_page_offset(struct vm_area_struct *vma, - unsigned long address) -{ - return ((address - vma->vm_start) >> PAGE_SHIFT) + - (vma->vm_pgoff >> PAGE_SHIFT); -} - -/* - * Convert the address within this vma to the page offset within * the mapping, in pagecache page units; huge pages here. */ -static pgoff_t vma_pagecache_offset(struct vm_area_struct *vma, +static pgoff_t vma_hugecache_offset(struct vm_area_struct *vma, unsigned long address) { return ((address - vma->vm_start) >> HPAGE_SHIFT) + @@ -806,7 +795,7 @@ static int vma_needs_reservation(struct vm_area_struct *vma, unsigned long addr) struct inode *inode = mapping->host; if (vma->vm_flags & VM_SHARED) { - pgoff_t idx = vma_pagecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(vma, addr); return region_chg(&inode->i_mapping->private_list, idx, idx + 1); @@ -815,7 +804,7 @@ static int vma_needs_reservation(struct vm_area_struct *vma, unsigned long addr) } else { int err; - pgoff_t idx = vma_pagecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(vma, addr); struct resv_map *reservations = vma_resv_map(vma); err = region_chg(&reservations->regions, idx, idx + 1); @@ -831,11 +820,11 @@ static void vma_commit_reservation(struct vm_area_struct *vma, struct inode *inode = mapping->host; if (vma->vm_flags & VM_SHARED) { - pgoff_t idx = vma_pagecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(vma, addr); region_add(&inode->i_mapping->private_list, idx, idx + 1); } else if (is_vma_resv_set(vma, HPAGE_RESV_OWNER)) { - pgoff_t idx = vma_pagecache_offset(vma, addr); + pgoff_t idx = vma_hugecache_offset(vma, addr); struct resv_map *reservations = vma_resv_map(vma); /* Mark this page used in the map. */ @@ -1153,8 +1142,8 @@ static void hugetlb_vm_op_close(struct vm_area_struct *vma) unsigned long end; if (reservations) { - start = vma_pagecache_offset(vma, vma->vm_start); - end = vma_pagecache_offset(vma, vma->vm_end); + start = vma_hugecache_offset(vma, vma->vm_start); + end = vma_hugecache_offset(vma, vma->vm_end); reserve = (end - start) - region_count(&reservations->regions, start, end); @@ -1471,7 +1460,7 @@ static struct page *hugetlbfs_pagecache_page(struct vm_area_struct *vma, pgoff_t idx; mapping = vma->vm_file->f_mapping; - idx = vma_pagecache_offset(vma, address); + idx = vma_hugecache_offset(vma, address); return find_lock_page(mapping, idx); } @@ -1499,7 +1488,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma, } mapping = vma->vm_file->f_mapping; - idx = vma_pagecache_offset(vma, address); + idx = vma_hugecache_offset(vma, address); /* * Use page lock to guard against racing truncation |