From 756d097b959aefe69a081496f84cfc14b1397a15 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 2 Jan 2016 12:45:27 -0500 Subject: [PATCH] dm-bufio: virt_to_phys() doesn't change remainder modulo PAGE_SIZE ... so virt_to_phys(p) & (PAGE_SIZE - 1) is a very odd way to spell offset_in_page(p). Signed-off-by: Al Viro --- drivers/md/dm-bufio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 2dd33085b331..adeb8d0f8aad 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -630,7 +630,7 @@ static void use_inline_bio(struct dm_buffer *b, int rw, sector_t block, do { if (!bio_add_page(&b->bio, virt_to_page(ptr), len < PAGE_SIZE ? len : PAGE_SIZE, - virt_to_phys(ptr) & (PAGE_SIZE - 1))) { + offset_in_page(ptr))) { BUG_ON(b->c->block_size <= PAGE_SIZE); use_dmio(b, rw, block, end_io); return; -- 2.20.1