On Mon, Sep 05, 2022 at 07:18:32PM +0530, Kanchan Joshi wrote: > +static struct bio *bio_map_get(struct request *rq, unsigned int nr_vecs, > gfp_t gfp_mask) > { > @@ -259,13 +252,31 @@ static int bio_map_user_iov(struct request *rq, struct iov_iter *iter, > bio = bio_alloc_bioset(NULL, nr_vecs, opf, gfp_mask, > &fs_bio_set); > if (!bio) > - return -ENOMEM; > + return NULL; This context looks weird? That bio_alloc_bioset should not be there, as biosets are only used for file system I/O, which this is not.