The following commit introduced the extent map leak:
commit 6fb37b756acce6d6e045f79c3764206033f617b4
Author: Liu Bo <[email protected]>
Date: Wed Jun 22 18:31:27 2016 -0700
Btrfs: check inconsistence between chunk and block group
This leads to slab warning at rmmod time.
Cc: Liu Bo <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
---
fs/btrfs/extent-tree.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c2b81b0..e621823 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9905,6 +9905,7 @@ static int find_first_block_group(struct btrfs_root *root,
ret = -ENOENT;
} else {
ret = 0;
+ free_extent_map(em);
}
goto out;
}
--
2.7.4
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