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mm: Remove return value of zap_vma_ptes() 

All callers of zap_vma_ptes() are not interested in the return value of
that function, so let's simplify its interface and drop the return
value.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Leon Romanovsky 2018-05-29 15:14:07 +03:00 committed by Doug Ledford
parent 008fba465d
commit 27d036e332
2 changed files with 7 additions and 8 deletions
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8
include/linux/mm.h
View File

@ -379,7 +379,7 @@ enum page_entry_size {
/* /*
* These are the virtual MM functions - opening of an area, closing and * These are the virtual MM functions - opening of an area, closing and
* unmapping it (needed to keep files on disk up-to-date etc), pointer * unmapping it (needed to keep files on disk up-to-date etc), pointer
* to the functions called when a no-page or a wp-page exception occurs. * to the functions called when a no-page or a wp-page exception occurs.
*/ */
struct vm_operations_struct { struct vm_operations_struct {
void (*open)(struct vm_area_struct * area); void (*open)(struct vm_area_struct * area);
@ -1267,10 +1267,10 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr, struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,
pmd_t pmd); pmd_t pmd);
int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,
unsigned long size); unsigned long size);
void 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); unsigned long size);
void unmap_vmas(struct mmu_gather *tlb, struct vm_area_struct *start_vma, void unmap_vmas(struct mmu_gather *tlb, struct vm_area_struct *start_vma,
unsigned long start, unsigned long end); unsigned long start, unsigned long end);

7
mm/memory.c
View File

@ -1660,16 +1660,15 @@ static void zap_page_range_single(struct vm_area_struct *vma, unsigned long addr
* *
* The entire address range must be fully contained within the vma. * The entire address range must be fully contained within the vma.
* *
* Returns 0 if successful.
*/ */
int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address,
unsigned long size) unsigned long size)
{ {
if (address < vma->vm_start || address + size > vma->vm_end || if (address < vma->vm_start || address + size > vma->vm_end ||
!(vma->vm_flags & VM_PFNMAP)) !(vma->vm_flags & VM_PFNMAP))
return -1; return;
zap_page_range_single(vma, address, size, NULL); zap_page_range_single(vma, address, size, NULL);
return 0;
} }
EXPORT_SYMBOL_GPL(zap_vma_ptes); EXPORT_SYMBOL_GPL(zap_vma_ptes);