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-rw-r--r--block/bio.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/block/bio.c b/block/bio.c
index 97e832cc9b9c..2d64488e51c6 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -849,8 +849,13 @@ int bio_add_page(struct bio *bio, struct page *page, unsigned int len,
unsigned int offset)
{
struct request_queue *q = bdev_get_queue(bio->bi_bdev);
+ unsigned int max_sectors;
- return __bio_add_page(q, bio, page, len, offset, blk_max_size_offset(q, bio->bi_iter.bi_sector));
+ max_sectors = blk_max_size_offset(q, bio->bi_iter.bi_sector);
+ if ((max_sectors < (len >> 9)) && !bio->bi_iter.bi_size)
+ max_sectors = len >> 9;
+
+ return __bio_add_page(q, bio, page, len, offset, max_sectors);
}
EXPORT_SYMBOL(bio_add_page);