From: Josef Bacik <josef@xxxxxxxxxxxxxx> We want to release the unused reservation we have since it refills the delayed refs reserve, which will make everything go smoother when running the delayed refs if we're short on our reservation. CC: stable@xxxxxxxxxxxxxxx # 4.4+ Reviewed-by: Omar Sandoval <osandov@xxxxxx> Reviewed-by: Liu Bo <bo.liu@xxxxxxxxxxxxxxxxx> Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx> Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Signed-off-by: David Sterba <dsterba@xxxxxxxx> --- Hello Greg, Here is a fixed up backport for upstream commit f45c752b65af46bf42963295c332865d95f97fff This one applies cleanly to 4.4.y and 4.9.y fs/btrfs/transaction.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index be8eae80ff65..098016338f98 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1821,6 +1821,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, return ret; } + btrfs_trans_release_metadata(trans, root); + trans->block_rsv = NULL; + /* make a pass through all the delayed refs we have so far * any runnings procs may add more while we are here */ @@ -1830,9 +1833,6 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, return ret; } - btrfs_trans_release_metadata(trans, root); - trans->block_rsv = NULL; - cur_trans = trans->transaction; /* -- 2.17.1
