diff options
| author | Jan Kara <jack@suse.cz> | 2016-12-14 15:07:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:09 -0800 |
| commit | 667240e0f2e13e792a5af99b3c34dfab12ef125b (patch) | |
| tree | f6880fe19d639a43c05b90a7e2c3e13161e0c81e /mm | |
| parent | 0721ec8bc156fafc9057ec1df95cdb3bbc3cbae8 (diff) | |
mm: use passed vm_fault structure in __do_fault()
Instead of creating another vm_fault structure, use the one passed to
__do_fault() for passing arguments into fault handler.
Link: http://lkml.kernel.org/r/1479460644-25076-5-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.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')
| -rw-r--r-- | mm/memory.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/mm/memory.c b/mm/memory.c index c514b4a07a7a..cbc6d47fda73 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2848,37 +2848,31 @@ static int __do_fault(struct vm_fault *vmf, struct page *cow_page, struct page **page, void **entry) { struct vm_area_struct *vma = vmf->vma; - struct vm_fault vmf2; int ret; - vmf2.address = vmf->address; - vmf2.pgoff = vmf->pgoff; - vmf2.flags = vmf->flags; - vmf2.page = NULL; - vmf2.gfp_mask = __get_fault_gfp_mask(vma); - vmf2.cow_page = cow_page; + vmf->cow_page = cow_page; - ret = vma->vm_ops->fault(vma, &vmf2); + ret = vma->vm_ops->fault(vma, vmf); if (unlikely(ret & (VM_FAULT_ERROR | VM_FAULT_NOPAGE | VM_FAULT_RETRY))) return ret; if (ret & VM_FAULT_DAX_LOCKED) { - *entry = vmf2.entry; + *entry = vmf->entry; return ret; } - if (unlikely(PageHWPoison(vmf2.page))) { + if (unlikely(PageHWPoison(vmf->page))) { if (ret & VM_FAULT_LOCKED) - unlock_page(vmf2.page); - put_page(vmf2.page); + unlock_page(vmf->page); + put_page(vmf->page); return VM_FAULT_HWPOISON; } if (unlikely(!(ret & VM_FAULT_LOCKED))) - lock_page(vmf2.page); + lock_page(vmf->page); else - VM_BUG_ON_PAGE(!PageLocked(vmf2.page), vmf2.page); + VM_BUG_ON_PAGE(!PageLocked(vmf->page), vmf->page); - *page = vmf2.page; + *page = vmf->page; return ret; } @@ -3614,6 +3608,7 @@ static int __handle_mm_fault(struct vm_area_struct *vma, unsigned long address, .address = address & PAGE_MASK, .flags = flags, .pgoff = linear_page_index(vma, address), + .gfp_mask = __get_fault_gfp_mask(vma), }; struct mm_struct *mm = vma->vm_mm; pgd_t *pgd; |