diff options
Diffstat (limited to 'drivers/md/dm-bufio.c')
| -rw-r--r-- | drivers/md/dm-bufio.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index e6d28be11c5c..5235f3e4924b 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1374,7 +1374,7 @@ static void submit_io(struct dm_buffer *b, enum req_op op, unsigned short ioprio { unsigned int n_sectors; sector_t sector; - unsigned int offset, end; + unsigned int offset, end, align; b->end_io = end_io; @@ -1388,9 +1388,11 @@ static void submit_io(struct dm_buffer *b, enum req_op op, unsigned short ioprio b->c->write_callback(b); offset = b->write_start; end = b->write_end; - offset &= -DM_BUFIO_WRITE_ALIGN; - end += DM_BUFIO_WRITE_ALIGN - 1; - end &= -DM_BUFIO_WRITE_ALIGN; + align = max(DM_BUFIO_WRITE_ALIGN, + bdev_physical_block_size(b->c->bdev)); + offset &= -align; + end += align - 1; + end &= -align; if (unlikely(end > b->c->block_size)) end = b->c->block_size; |