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-rw-r--r--block/bio.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/block/bio.c b/block/bio.c
index 117da319afb6..c2ff8a88aef1 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -271,7 +271,7 @@ void bio_init(struct bio *bio)
memset(bio, 0, sizeof(*bio));
bio->bi_flags = 1 << BIO_UPTODATE;
atomic_set(&bio->__bi_remaining, 1);
- atomic_set(&bio->bi_cnt, 1);
+ atomic_set(&bio->__bi_cnt, 1);
}
EXPORT_SYMBOL(bio_init);
@@ -524,13 +524,17 @@ EXPORT_SYMBOL(zero_fill_bio);
**/
void bio_put(struct bio *bio)
{
- BIO_BUG_ON(!atomic_read(&bio->bi_cnt));
-
- /*
- * last put frees it
- */
- if (atomic_dec_and_test(&bio->bi_cnt))
+ if (!bio_flagged(bio, BIO_REFFED))
bio_free(bio);
+ else {
+ BIO_BUG_ON(!atomic_read(&bio->__bi_cnt));
+
+ /*
+ * last put frees it
+ */
+ if (atomic_dec_and_test(&bio->__bi_cnt))
+ bio_free(bio);
+ }
}
EXPORT_SYMBOL(bio_put);