diff options
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 504595d6cf65..305cba3681fe 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -320,8 +320,12 @@ static int compute_max_sectors(struct block_device *bdev) max_pages = q->max_hw_segments; max_pages--; /* Handle I/Os that straddle a page */ - max_sectors = max_pages << (PAGE_SHIFT - 9); - + if (max_pages) { + max_sectors = max_pages << (PAGE_SHIFT - 9); + } else { + /* If BIO contains 1 or less than 1 page. */ + max_sectors = q->max_sectors; + } /* Why is fls() 1-based???? */ pow_two_sectors = 1 << (fls(max_sectors) - 1); |