From 34f2fd8dfe6185b0eaaf7d661281713a6170b077 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 18 Nov 2013 22:11:42 +0900 Subject: [PATCH] bio: fix argument of __bio_add_page() for max_sectors > 0xffff The data type of max_sectors and max_hw_sectors in queue settings are unsigned int. But these values are passed to __bio_add_page() as an argument whose data type is unsigned short. In the worst case such as max_sectors is 0x10000, bio_add_page() can't add a page and IOs can't proceed. Cc: Jens Axboe Cc: Alexander Viro Signed-off-by: Akinobu Mita Signed-off-by: Jens Axboe --- fs/bio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/bio.c b/fs/bio.c index 2bdb4e25ee77..33d79a4eb92d 100644 --- a/fs/bio.c +++ b/fs/bio.c @@ -601,7 +601,7 @@ EXPORT_SYMBOL(bio_get_nr_vecs); static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page *page, unsigned int len, unsigned int offset, - unsigned short max_sectors) + unsigned int max_sectors) { int retried_segments = 0; struct bio_vec *bvec; -- 2.20.1