drbd: use copy_highpage
Use copy_highpage() to copy from one page to another.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 1ab205a..8dc2950 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1011,17 +1011,11 @@
bm_set_page_unchanged(b->bm_pages[page_nr]);
if (ctx->flags & BM_AIO_COPY_PAGES) {
- void *src, *dest;
page = mempool_alloc(drbd_md_io_page_pool, __GFP_HIGHMEM|__GFP_WAIT);
- dest = kmap_atomic(page);
- src = kmap_atomic(b->bm_pages[page_nr]);
- memcpy(dest, src, PAGE_SIZE);
- kunmap_atomic(src);
- kunmap_atomic(dest);
+ copy_highpage(page, b->bm_pages[page_nr]);
bm_store_page_idx(page, page_nr);
} else
page = b->bm_pages[page_nr];
-
bio->bi_bdev = mdev->ldev->md_bdev;
bio->bi_sector = on_disk_sector;
/* bio_add_page of a single page to an empty bio will always succeed,