We allocate the free space from the former block group, not the current
one, so should use the former one to output the trace information.
Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
---
fs/btrfs/extent-tree.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a47efc1..3664cfb 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6345,7 +6345,8 @@ have_block_group:
/* we have a block, we're done */
spin_unlock(&last_ptr->refill_lock);
trace_btrfs_reserve_extent_cluster(root,
- block_group, search_start, num_bytes);
+ used_block_group,
+ search_start, num_bytes);
if (used_block_group != block_group) {
btrfs_put_block_group(block_group);
block_group = used_block_group;
--
1.8.3.1
--
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