58 #define GET_SWAP_RA_VAL(vma)					\  argument
59 	(atomic_long_read(&(vma)->swap_readahead_info) ? : 4)
310 struct page *lookup_swap_cache(swp_entry_t entry, struct vm_area_struct *vma,  in lookup_swap_cache()  argument
336 		if (vma && vma_ra) {  in lookup_swap_cache()
340 			ra_val = GET_SWAP_RA_VAL(vma);  in lookup_swap_cache()
345 			atomic_long_set(&vma->swap_readahead_info,  in lookup_swap_cache()
351 			if (!vma || !vma_ra)  in lookup_swap_cache()
360 			struct vm_area_struct *vma, unsigned long addr,  in __read_swap_cache_async()  argument
398 			new_page = alloc_page_vma(gfp_mask, vma, addr);  in __read_swap_cache_async()
449 		struct vm_area_struct *vma, unsigned long addr, bool do_poll)  in read_swap_cache_async()  argument
453 			vma, addr, &page_was_allocated);  in read_swap_cache_async()
550 	struct vm_area_struct *vma = vmf->vma;  in swap_cluster_readahead()  local
578 			gfp_mask, vma, addr, &page_allocated);  in swap_cluster_readahead()
594 	return read_swap_cache_async(entry, gfp_mask, vma, addr, do_poll);  in swap_cluster_readahead()
627 static inline void swap_ra_clamp_pfn(struct vm_area_struct *vma,  in swap_ra_clamp_pfn()  argument
634 	*start = max3(lpfn, PFN_DOWN(vma->vm_start),  in swap_ra_clamp_pfn()
636 	*end = min3(rpfn, PFN_DOWN(vma->vm_end),  in swap_ra_clamp_pfn()
643 	struct vm_area_struct *vma = vmf->vma;  in swap_ra_info()  local
670 	ra_val = GET_SWAP_RA_VAL(vma);  in swap_ra_info()
676 	atomic_long_set(&vma->swap_readahead_info,  in swap_ra_info()
686 		swap_ra_clamp_pfn(vma, faddr, fpfn, fpfn + win, &start, &end);  in swap_ra_info()
688 		swap_ra_clamp_pfn(vma, faddr, fpfn - win + 1, fpfn + 1,  in swap_ra_info()
692 		swap_ra_clamp_pfn(vma, faddr, fpfn - left, fpfn + win - left,  in swap_ra_info()
726 	struct vm_area_struct *vma = vmf->vma;  in swap_vma_readahead()  local
749 		page = __read_swap_cache_async(entry, gfp_mask, vma,  in swap_vma_readahead()
765 	return read_swap_cache_async(fentry, gfp_mask, vma, vmf->address,  in swap_vma_readahead()