author: Pavel Begunkov <asml.silence@gmail.com> 2021-01-09 16:03:02 +0000
committer: Jens Axboe <axboe@kernel.dk> 2021-01-25 08:58:24 -0700
commit: 3e1a88ec96259282b9a8b45c3f1fda7a3ff4f6ea
parent: 54c8195b4ebe10af66b49ab9c809bc16939555fc
Commit Summary:
Diffstat:
1 file changed, 3 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 3b8963e228a1..6f5bd9950baf 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -416,7 +416,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
dio->size += bio->bi_iter.bi_size;
pos += bio->bi_iter.bi_size;
- nr_pages = iov_iter_npages(iter, BIO_MAX_PAGES);
+ nr_pages = bio_iov_vecs_to_alloc(iter, BIO_MAX_PAGES);
if (!nr_pages) {
bool polled = false;
@@ -481,9 +481,10 @@ blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
{
int nr_pages;
- nr_pages = iov_iter_npages(iter, BIO_MAX_PAGES + 1);
- if (!nr_pages)
+ if (!iov_iter_count(iter))
return 0;
+
+ nr_pages = bio_iov_vecs_to_alloc(iter, BIO_MAX_PAGES + 1);
if (is_sync_kiocb(iocb) && nr_pages <= BIO_MAX_PAGES)
return __blkdev_direct_IO_simple(iocb, iter, nr_pages);