* [PATCH] btrfs: Fix BUG_ON for fs converted from extN
@ 2010-05-31 9:04 Yan, Zheng
0 siblings, 0 replies; only message in thread
From: Yan, Zheng @ 2010-05-31 9:04 UTC (permalink / raw)
To: linux-btrfs; +Cc: Chris Mason
Tree blocks can live in data block groups in FS converted from extN.
So it's easy to trigger the BUG_ON.
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
---
diff -urp 1/fs/btrfs/extent-tree.c 3/fs/btrfs/extent-tree.c
--- 1/fs/btrfs/extent-tree.c 2010-05-26 23:55:46.610378078 +0800
+++ 3/fs/btrfs/extent-tree.c 2010-05-31 16:36:51.907580723 +0800
@@ -4360,7 +4360,8 @@ void btrfs_free_tree_block(struct btrfs_
block_rsv = get_block_rsv(trans, root);
cache = btrfs_lookup_block_group(root->fs_info, buf->start);
- BUG_ON(block_rsv->space_info != cache->space_info);
+ if (block_rsv->space_info != cache->space_info)
+ goto out;
if (btrfs_header_generation(buf) == trans->transid) {
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
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