diff options
| author | Ming Lei <ming.lei@redhat.com> | 2019-03-29 15:07:54 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-04-01 12:11:13 -0600 |
| commit | 0383ad4374f7ad7edd925a2ee4753035c3f5508a (patch) | |
| tree | 9c79f466839188b74a3a69e2c3f87b806800188d /drivers/xen | |
| parent | 56a85fd8376ef32458efb6ea97a820754e12f6bb (diff) | |
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 <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
Cc: Omar Sandoval <osandov@fb.com>
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/biomerge.c | 5 |
1 files changed, 3 insertions, 2 deletions
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 <xen/xen.h> #include <xen/page.h> +/* 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 |