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Commit 992c5dda authored by Jens Axboe's avatar Jens Axboe
Browse files

bio: make freeing of ->bi_io_vec conditional in bio_free() 



The empty barrier patches do not carry data, so they have no
iovec attached.

Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent 2b94de55

fs/bio.c

+6 −3
Original line number Diff line number Diff line
@@ -109,11 +109,14 @@ static inline struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned lon 


void bio_free(struct bio *bio, struct bio_set *bio_set)

{

	if (bio->bi_io_vec) {

		const int pool_idx = BIO_POOL_IDX(bio);



		BIO_BUG_ON(pool_idx >= BIOVEC_NR_POOLS);



		mempool_free(bio->bi_io_vec, bio_set->bvec_pools[pool_idx]);

	}



	mempool_free(bio, bio_set->bio_pool);

}