Displaying 2 results from an estimated 2 matches for "extent_flag_logging".
2013 Mar 15
2
[PATCH] Btrfs: fix warning of free_extent_map
Users report that an extent map''s list is still linked when it''s actually
going to be freed from cache.
The story is that
a) when we''re going to drop an extent map and may split this large one into
smaller ems, and if this large one is flagged as EXTENT_FLAG_LOGGING which means
that it''s on the list to be logged, then the smaller ems split from it will also
be flagged as EXTENT_FLAG_LOGGING, and this is _not_ expected.
b) we''ll keep ems from unlinking the list and freeing when they are flagged with
EXTENT_FLAG_LOGGING, because the log code h...
2012 Sep 17
0
[PATCH] Btrfs: do not hold the write_lock on the extent tree while logging V2
...t_map.c
+++ b/fs/btrfs/extent_map.c
@@ -407,7 +407,8 @@ int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em)
WARN_ON(test_bit(EXTENT_FLAG_PINNED, &em->flags));
rb_erase(&em->rb_node, &tree->map);
- list_del_init(&em->list);
+ if (!test_bit(EXTENT_FLAG_LOGGING, &em->flags))
+ list_del_init(&em->list);
em->in_tree = 0;
return ret;
}
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 8e6294b..6792255 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -13,6 +13,7 @@
#define EXTENT_FLAG_COMPRESSED 1
#defi...