On 2017/8/8 下午4:45, Ming Lei wrote: > Cc: linux-bcache@xxxxxxxxxxxxxxx > Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx> The patch is good to me. Thanks. Acked-by: Coly Li <colyli@xxxxxxx> > --- > drivers/md/bcache/btree.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c > index 3da595ae565b..74cbb7387dc5 100644 > --- a/drivers/md/bcache/btree.c > +++ b/drivers/md/bcache/btree.c > @@ -422,8 +422,9 @@ static void do_btree_node_write(struct btree *b) > int j; > struct bio_vec *bv; > void *base = (void *) ((unsigned long) i & ~(PAGE_SIZE - 1)); > + struct bvec_iter_all bia; > > - bio_for_each_segment_all(bv, b->bio, j) > + bio_for_each_segment_all_sp(bv, b->bio, j, bia) > memcpy(page_address(bv->bv_page), > base + j * PAGE_SIZE, PAGE_SIZE); > > -- Coly Li