Btrfs: make sure we're not using obsolete code in btrfs_get_extent

There's code in btrfs_get_extent that should never be used. This patch turns
a WARN_ON(1) into a BUG(), hoping we can remove the transaction code from
btrfs_get_extent soon.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ea81938..603d740 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5022,7 +5022,7 @@ again:
                        }
                        flush_dcache_page(page);
                } else if (create && PageUptodate(page)) {
-                       WARN_ON(1);
+                       BUG();
                        if (!trans) {
                                kunmap(page);
                                free_extent_map(em);