If the id of the existed transaction is more than the one we specified, it means the specified transaction was commited, so we should return 0, not EINVAL.
Signed-off-by: Miao Xie <[email protected]> --- fs/btrfs/transaction.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 350e9c4..788e079 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -461,28 +461,31 @@ static noinline void wait_for_commit(struct btrfs_root *root, int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid) { struct btrfs_transaction *cur_trans = NULL, *t; - int ret; + int ret = 0; - ret = 0; if (transid) { if (transid <= root->fs_info->last_trans_committed) goto out; + ret = -EINVAL; /* find specified transaction */ spin_lock(&root->fs_info->trans_lock); list_for_each_entry(t, &root->fs_info->trans_list, list) { if (t->transid == transid) { cur_trans = t; atomic_inc(&cur_trans->use_count); + ret = 0; break; } - if (t->transid > transid) + if (t->transid > transid) { + ret = 0; break; + } } spin_unlock(&root->fs_info->trans_lock); - ret = -EINVAL; + /* The specified transaction doesn't exist */ if (!cur_trans) - goto out; /* bad transid */ + goto out; } else { /* find newest transaction that is committing | committed */ spin_lock(&root->fs_info->trans_lock); @@ -502,9 +505,7 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid) } wait_for_commit(root, cur_trans); - put_transaction(cur_trans); - ret = 0; out: return ret; } -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
