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authorAl Viro <viro@zeniv.linux.org.uk>2016-01-02 12:45:27 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2016-01-04 10:29:07 -0500
commit756d097b959aefe69a081496f84cfc14b1397a15 (patch)
tree891919065990fecf3561452c6bce944170278eb7 /drivers
parent4e728cf8ffa2891913dd48e179c132fb9fa07e0e (diff)
downloadlinux-756d097b959aefe69a081496f84cfc14b1397a15.tar.bz2
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/md/dm-bufio.c2
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;