From 0383ad4374f7ad7edd925a2ee4753035c3f5508a Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Fri, 29 Mar 2019 15:07:54 +0800 Subject: block: pass page to xen_biovec_phys_mergeable xen_biovec_phys_mergeable() only needs .bv_page of the 2nd bio bvec for checking if the two bvecs can be merged, so pass page to xen_biovec_phys_mergeable() directly. No function change. Cc: ris Ostrovsky Cc: Juergen Gross Cc: xen-devel@lists.xenproject.org Cc: Omar Sandoval Cc: Christoph Hellwig Reviewed-by: Christoph Hellwig Reviewed-by: Boris Ostrovsky Signed-off-by: Ming Lei Signed-off-by: Jens Axboe --- drivers/xen/biomerge.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/xen') diff --git a/drivers/xen/biomerge.c b/drivers/xen/biomerge.c index f3fbb700f569..05a286d24f14 100644 --- a/drivers/xen/biomerge.c +++ b/drivers/xen/biomerge.c @@ -4,12 +4,13 @@ #include #include +/* check if @page can be merged with 'vec1' */ bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, - const struct bio_vec *vec2) + const struct page *page) { #if XEN_PAGE_SIZE == PAGE_SIZE unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page)); - unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page)); + unsigned long bfn2 = pfn_to_bfn(page_to_pfn(page)); return bfn1 + PFN_DOWN(vec1->bv_offset + vec1->bv_len) == bfn2; #else -- cgit v1.2.1