From 5a136fdf5a0ab3c021ef6d989bb56a361e132234 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Sun, 18 Jun 2017 14:38:59 +1000 Subject: [PATCH] bcache: use kmalloc to allocate bio in bch_data_verify() This function allocates a bio, then a collection of pages. It copes with failure. It currently uses a mempool() to allocate the bio, but alloc_page() to allocate the pages. These fail in different ways, so the usage is inconsistent. Change the bio_clone() to bio_clone_kmalloc() so that no pool is used either for the bio or the pages. Reviewed-by: Christoph Hellwig Acked-by: Kent Overstreet Reviewed-by : Ming Lei Signed-off-by: NeilBrown Signed-off-by: Jens Axboe --- drivers/md/bcache/debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c index 06f5505..35a5a72 100644 --- a/drivers/md/bcache/debug.c +++ b/drivers/md/bcache/debug.c @@ -110,7 +110,7 @@ void bch_data_verify(struct cached_dev *dc, struct bio *bio) struct bio_vec bv, cbv; struct bvec_iter iter, citer = { 0 }; - check = bio_clone(bio, GFP_NOIO); + check = bio_clone_kmalloc(bio, GFP_NOIO); if (!check) return; check->bi_opf = REQ_OP_READ; -- 2.7.4