diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2017-02-24 14:56:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-24 17:46:54 -0800 |
| commit | 11bac80004499ea59f361ef2a5516c84b6eab675 (patch) | |
| tree | b971df98b3fa9d4e62b8f4f7b5ec950181df4daa /mm/mmap.c | |
| parent | 374ad05ab64d696303cec5cc8ec3a65d457b7b1c (diff) | |
mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf
->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.
[arnd@arndb.de: fix ARM build]
Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index b729084eea90..1cd70010edf0 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -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; } |