[PATCH 3/3] Make max_size consistent with nr

[Christophe de Dinechin <dinechin@xxxxxxxxxx>]

Since we memset tmpl, max_size==0. This does not seem consistent with nr = 1.
In check_extent_refs, we will call:

  set_extent_dirty(root->fs_info->excluded_extents,
                   rec->start,
                   rec->start + rec->max_size - 1);

This ends up with BUG_ON(end < start) in insert_state.

Signed-off-by: Christophe de Dinechin <dinechin@xxxxxxxxxx>
---
 cmds-check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmds-check.c b/cmds-check.c
index 58e65d6..774e9b6 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -6193,6 +6193,7 @@ static int add_tree_backref(struct cache_tree *extent_cache, u64 bytenr,
 		tmpl.start = bytenr;
 		tmpl.nr = 1;
 		tmpl.metadata = 1;
+                tmpl.max_size = 1;
 
 		ret = add_extent_rec_nolookup(extent_cache, &tmpl);
 		if (ret)
-- 
2.9.3

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