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-rw-r--r--fs/btrfs/free-space-cache.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 2ee73c2..030847b 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -3200,6 +3200,12 @@ out:
/* once for us and once for the tree */
free_extent_map(em);
free_extent_map(em);
+
+ /*
+ * We've left one free space entry and other tasks trimming
+ * this block group have left 1 entry each one. Free them.
+ */
+ __btrfs_remove_free_space_cache(block_group->free_space_ctl);
} else {
spin_unlock(&block_group->lock);
}
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