From: Sidhartha Kumar Date: Tue, 11 Jul 2023 05:35:44 +0000 (-0700) Subject: mm/memory: pass folio into do_page_mkwrite() X-Git-Tag: v6.6.7~1970^2~407 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=86aa6998ad00af823de81d12d41d7063c14298a0;p=platform%2Fkernel%2Flinux-starfive.git mm/memory: pass folio into do_page_mkwrite() Saves one implicit call to compound_head(). I'm not sure if I should change the name of the function to do_folio_mkwrite() and update the description comment to reference a folio as the vm_op is still called page_mkwrite. Link: https://lkml.kernel.org/r/20230711053544.156617-1-sidhartha.kumar@oracle.com Signed-off-by: Sidhartha Kumar Suggested-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- diff --git a/mm/memory.c b/mm/memory.c index 36b164ee..44d1181 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2933,10 +2933,9 @@ static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) * * We do this without the lock held, so that it can sleep if it needs to. */ -static vm_fault_t do_page_mkwrite(struct vm_fault *vmf) +static vm_fault_t do_page_mkwrite(struct vm_fault *vmf, struct folio *folio) { vm_fault_t ret; - struct folio *folio = page_folio(vmf->page); unsigned int old_flags = vmf->flags; vmf->flags = FAULT_FLAG_WRITE|FAULT_FLAG_MKWRITE; @@ -3298,7 +3297,7 @@ static vm_fault_t wp_page_shared(struct vm_fault *vmf, struct folio *folio) vm_fault_t tmp; pte_unmap_unlock(vmf->pte, vmf->ptl); - tmp = do_page_mkwrite(vmf); + tmp = do_page_mkwrite(vmf, folio); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { folio_put(folio); @@ -4621,7 +4620,7 @@ static vm_fault_t do_shared_fault(struct vm_fault *vmf) */ if (vma->vm_ops->page_mkwrite) { folio_unlock(folio); - tmp = do_page_mkwrite(vmf); + tmp = do_page_mkwrite(vmf, folio); if (unlikely(!tmp || (tmp & (VM_FAULT_ERROR | VM_FAULT_NOPAGE)))) { folio_put(folio);