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VM: make zap_page_range() return void

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... since all callers ignore its return value and it's been
useless since commit 97a894136f
(mm: Remove i_mmap_lock lockbreak) anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-03-05 13:38:09 -05:00
parent 8b2a12382c
commit 14f5ff5df3
2 changed files with 3 additions and 4 deletions
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2
include/linux/mm.h
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@ -893,7 +893,7 @@ struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,
unsigned long size); unsigned long size);
unsigned long zap_page_range(struct vm_area_struct *vma, unsigned long address, void zap_page_range(struct vm_area_struct *vma, unsigned long address,
unsigned long size, struct zap_details *); unsigned long size, struct zap_details *);
unsigned long unmap_vmas(struct mmu_gather *tlb, unsigned long unmap_vmas(struct mmu_gather *tlb,
struct vm_area_struct *start_vma, unsigned long start_addr, struct vm_area_struct *start_vma, unsigned long start_addr,

5
mm/memory.c
View File

@ -1386,7 +1386,7 @@ unsigned long unmap_vmas(struct mmu_gather *tlb,
* @size: number of bytes to zap * @size: number of bytes to zap
* @details: details of nonlinear truncation or shared cache invalidation * @details: details of nonlinear truncation or shared cache invalidation
*/ */
unsigned long zap_page_range(struct vm_area_struct *vma, unsigned long address, void zap_page_range(struct vm_area_struct *vma, unsigned long address,
unsigned long size, struct zap_details *details) unsigned long size, struct zap_details *details)
{ {
struct mm_struct *mm = vma->vm_mm; struct mm_struct *mm = vma->vm_mm;
@ -1397,9 +1397,8 @@ unsigned long zap_page_range(struct vm_area_struct *vma, unsigned long address,
lru_add_drain(); lru_add_drain();
tlb_gather_mmu(&tlb, mm, 0); tlb_gather_mmu(&tlb, mm, 0);
update_hiwater_rss(mm); update_hiwater_rss(mm);
end = unmap_vmas(&tlb, vma, address, end, &nr_accounted, details); unmap_vmas(&tlb, vma, address, end, &nr_accounted, details);
tlb_finish_mmu(&tlb, address, end); tlb_finish_mmu(&tlb, address, end);
return end;
} }
/** /**