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-rw-r--r--fs/bio.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 4ef7bd4cd48f..73922abba832 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -508,9 +508,14 @@ EXPORT_SYMBOL(bio_clone);
int bio_get_nr_vecs(struct block_device *bdev)
{
struct request_queue *q = bdev_get_queue(bdev);
- return min_t(unsigned,
+ int nr_pages;
+
+ nr_pages = min_t(unsigned,
queue_max_segments(q),
queue_max_sectors(q) / (PAGE_SIZE >> 9) + 1);
+
+ return min_t(unsigned, nr_pages, BIO_MAX_PAGES);
+
}
EXPORT_SYMBOL(bio_get_nr_vecs);