diff options
Diffstat (limited to 'fs/block_dev.c')
-rw-r--r-- | fs/block_dev.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index e9faa52bb489..bb28e2ead679 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -264,7 +264,8 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter, bio_for_each_segment_all(bvec, &bio, i, iter_all) { if (should_dirty && !PageCompound(bvec->bv_page)) set_page_dirty_lock(bvec->bv_page); - put_page(bvec->bv_page); + if (!bio_flagged(&bio, BIO_NO_PAGE_REF)) + put_page(bvec->bv_page); } if (unlikely(bio.bi_status)) @@ -307,10 +308,10 @@ static void blkdev_bio_end_io(struct bio *bio) struct blkdev_dio *dio = bio->bi_private; bool should_dirty = dio->should_dirty; - if (dio->multi_bio && !atomic_dec_and_test(&dio->ref)) { - if (bio->bi_status && !dio->bio.bi_status) - dio->bio.bi_status = bio->bi_status; - } else { + if (bio->bi_status && !dio->bio.bi_status) + dio->bio.bi_status = bio->bi_status; + + if (!dio->multi_bio || atomic_dec_and_test(&dio->ref)) { if (!dio->is_sync) { struct kiocb *iocb = dio->iocb; ssize_t ret; @@ -336,12 +337,14 @@ static void blkdev_bio_end_io(struct bio *bio) if (should_dirty) { bio_check_pages_dirty(bio); } else { - struct bio_vec *bvec; - int i; - struct bvec_iter_all iter_all; + if (!bio_flagged(bio, BIO_NO_PAGE_REF)) { + struct bvec_iter_all iter_all; + struct bio_vec *bvec; + int i; - bio_for_each_segment_all(bvec, bio, i, iter_all) - put_page(bvec->bv_page); + bio_for_each_segment_all(bvec, bio, i, iter_all) + put_page(bvec->bv_page); + } bio_put(bio); } } |