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| author | Jan Kara <jack@suse.cz> | 2016-12-14 15:07:01 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:09 -0800 |
| commit | 1a29d85eb0f19b7d8271923d8917d7b4f5540b3e (patch) | |
| tree | 76bf90e637fb4b0c95a7a9eb81bc9aec71329a4e /mm/memory.c | |
| parent | 82b0f8c39a3869b6fd2a10e180a862248736ec6f (diff) | |
| download | op-kernel-dev-1a29d85eb0f19b7d8271923d8917d7b4f5540b3e.zip op-kernel-dev-1a29d85eb0f19b7d8271923d8917d7b4f5540b3e.tar.gz | |
mm: use vmf->address instead of of vmf->virtual_address
Every single user of vmf->virtual_address typed that entry to unsigned
long before doing anything with it so the type of virtual_address does
not really provide us any additional safety. Just use masked
vmf->address which already has the appropriate type.
Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/memory.c b/mm/memory.c index 512e1c3..3798362 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2040,7 +2040,7 @@ static int do_page_mkwrite(struct vm_area_struct *vma, struct page *page, struct vm_fault vmf; int ret; - vmf.virtual_address = (void __user *)(address & PAGE_MASK); + vmf.address = address & PAGE_MASK; vmf.pgoff = page->index; vmf.flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; vmf.gfp_mask = __get_fault_gfp_mask(vma); @@ -2276,8 +2276,7 @@ static int wp_pfn_shared(struct vm_fault *vmf, pte_t orig_pte) struct vm_fault vmf2 = { .page = NULL, .pgoff = linear_page_index(vma, vmf->address), - .virtual_address = - (void __user *)(vmf->address & PAGE_MASK), + .address = vmf->address, .flags = FAULT_FLAG_WRITE | FAULT_FLAG_MKWRITE, }; int ret; @@ -2852,7 +2851,7 @@ static int __do_fault(struct vm_fault *vmf, pgoff_t pgoff, struct vm_fault vmf2; int ret; - vmf2.virtual_address = (void __user *)(vmf->address & PAGE_MASK); + vmf2.address = vmf->address; vmf2.pgoff = pgoff; vmf2.flags = vmf->flags; vmf2.page = NULL; @@ -3612,7 +3611,7 @@ static int __handle_mm_fault(struct vm_area_struct *vma, unsigned long address, { struct vm_fault vmf = { .vma = vma, - .address = address, + .address = address & PAGE_MASK, .flags = flags, }; struct mm_struct *mm = vma->vm_mm; |
