btrfs: remove unused define WAIT_PAGE_LOCK for extent io

Last use was in the readahead code that got removed by f26c9238602856
("btrfs: remove reada infrastructure").

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 986f15022fefe0590ff2d66f37f51212cee3a9ba..ca09fc31e2de9915a00ea08cfdf9d291d2cb80a5 100644 (file)
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -263,7 +263,6 @@ void free_extent_buffer(struct extent_buffer *eb);
 void free_extent_buffer_stale(struct extent_buffer *eb);
 #define WAIT_NONE      0
 #define WAIT_COMPLETE  1
-#define WAIT_PAGE_LOCK 2
 int read_extent_buffer_pages(struct extent_buffer *eb, int wait, int mirror_num,
                             const struct btrfs_tree_parent_check *parent_check);
 static inline void wait_on_extent_buffer_writeback(struct extent_buffer *eb)