diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-02 12:45:27 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-04 10:29:07 -0500 |
| commit | 756d097b959aefe69a081496f84cfc14b1397a15 (patch) | |
| tree | 891919065990fecf3561452c6bce944170278eb7 | |
| parent | 4e728cf8ffa2891913dd48e179c132fb9fa07e0e (diff) | |
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 <viro@zeniv.linux.org.uk>
| -rw-r--r-- | drivers/md/dm-bufio.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; |