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mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf

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->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to
take a vma and vmf parameter when the vma already resides in vmf.

Remove the vma parameter to simplify things.

[[email protected]: fix ARM build]
  Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Cc: Theodore Ts'o <[email protected]>
Cc: Darrick J. Wong <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Dan Williams <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Dave Jiang 2017-02-24 14:56:41 -08:00 • committed by Linus Torvalds
commit 11bac80004
87 changed files with 283 additions and 290 deletions
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9
mm/mmap.c
View file

@ -3125,8 +3125,7 @@ void vm_stat_account(struct mm_struct *mm, vm_flags_t flags, long npages)
mm->data_vm += npages;
}
static int special_mapping_fault(struct vm_area_struct *vma,
struct vm_fault *vmf);
static int special_mapping_fault(struct vm_fault *vmf);
/*
* Having a close hook prevents vma merging regardless of flags.
@ -3161,9 +3160,9 @@ static const struct vm_operations_struct legacy_special_mapping_vmops = {
.fault = special_mapping_fault,
};
static int special_mapping_fault(struct vm_area_struct *vma,
struct vm_fault *vmf)
static int special_mapping_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
pgoff_t pgoff;
struct page **pages;
@ -3173,7 +3172,7 @@ static int special_mapping_fault(struct vm_area_struct *vma,
struct vm_special_mapping *sm = vma->vm_private_data;
if (sm->fault)
return sm->fault(sm, vma, vmf);
return sm->fault(sm, vmf->vma, vmf);
pages = sm->pages;
}