summaryrefslogtreecommitdiff
path: root/fs/bio.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/bio.c')
-rw-r--r--fs/bio.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/fs/bio.c b/fs/bio.c
index e49cf7dd2e92..a7d4fd3a3299 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -105,18 +105,22 @@ static inline struct bio_vec *bvec_alloc_bs(unsigned int __nocast gfp_mask, int
return bvl;
}
-/*
- * default destructor for a bio allocated with bio_alloc_bioset()
- */
-static void bio_destructor(struct bio *bio)
+void bio_free(struct bio *bio, struct bio_set *bio_set)
{
const int pool_idx = BIO_POOL_IDX(bio);
- struct bio_set *bs = bio->bi_set;
BIO_BUG_ON(pool_idx >= BIOVEC_NR_POOLS);
- mempool_free(bio->bi_io_vec, bs->bvec_pools[pool_idx]);
- mempool_free(bio, bs->bio_pool);
+ mempool_free(bio->bi_io_vec, bio_set->bvec_pools[pool_idx]);
+ mempool_free(bio, bio_set->bio_pool);
+}
+
+/*
+ * default destructor for a bio allocated with bio_alloc_bioset()
+ */
+static void bio_fs_destructor(struct bio *bio)
+{
+ bio_free(bio, fs_bio_set);
}
inline void bio_init(struct bio *bio)
@@ -172,8 +176,6 @@ struct bio *bio_alloc_bioset(unsigned int __nocast gfp_mask, int nr_iovecs, stru
bio->bi_max_vecs = bvec_slabs[idx].nr_vecs;
}
bio->bi_io_vec = bvl;
- bio->bi_destructor = bio_destructor;
- bio->bi_set = bs;
}
out:
return bio;
@@ -181,7 +183,12 @@ out:
struct bio *bio_alloc(unsigned int __nocast gfp_mask, int nr_iovecs)
{
- return bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
+ struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
+
+ if (bio)
+ bio->bi_destructor = bio_fs_destructor;
+
+ return bio;
}
void zero_fill_bio(struct bio *bio)
@@ -274,8 +281,10 @@ struct bio *bio_clone(struct bio *bio, unsigned int __nocast gfp_mask)
{
struct bio *b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, fs_bio_set);
- if (b)
+ if (b) {
+ b->bi_destructor = bio_fs_destructor;
__bio_clone(b, bio);
+ }
return b;
}
@@ -1211,6 +1220,7 @@ subsys_initcall(init_bio);
EXPORT_SYMBOL(bio_alloc);
EXPORT_SYMBOL(bio_put);
+EXPORT_SYMBOL(bio_free);
EXPORT_SYMBOL(bio_endio);
EXPORT_SYMBOL(bio_init);
EXPORT_SYMBOL(__bio_clone);