author: Matthew Wilcox (Oracle) <willy@infradead.org> 2021-01-29 04:38:57 +0000
committer: Jens Axboe <axboe@kernel.dk> 2021-02-26 15:49:51 -0700
commit: 5f7136db82996089cdfb2939c7664b29e9da141d
parent: 94d4bffdda21baa2c749bc229c41811a7559dd15
Commit Summary:
Diffstat:
1 file changed, 1 insertion, 3 deletions
diff --git a/block/blk-map.c b/block/blk-map.c
index 21630dccac62..369e204d14d0 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -150,9 +150,7 @@ static int bio_copy_user_iov(struct request *rq, struct rq_map_data *map_data,
bmd->is_our_pages = !map_data;
bmd->is_null_mapped = (map_data && map_data->null_mapped);
- nr_pages = DIV_ROUND_UP(offset + len, PAGE_SIZE);
- if (nr_pages > BIO_MAX_PAGES)
- nr_pages = BIO_MAX_PAGES;
+ nr_pages = bio_max_segs(DIV_ROUND_UP(offset + len, PAGE_SIZE));
ret = -ENOMEM;
bio = bio_kmalloc(gfp_mask, nr_pages);