diff options
author | Miao Xie <miaox@cn.fujitsu.com> | 2012-11-26 08:42:07 (GMT) |
---|---|---|
committer | Chris Mason <chris.mason@fusionio.com> | 2012-12-17 01:46:08 (GMT) |
commit | 8cd2807f79b73ef2d8c1cb6b3732dc5758ac7212 (patch) | |
tree | cc743e41c7cb92d900abeb2727e7df7c48dff4e7 /fs | |
parent | ff7c1d33551862c86f7737fe88edc3e499d291e6 (diff) | |
download | linux-fsl-qoriq-8cd2807f79b73ef2d8c1cb6b3732dc5758ac7212.tar.xz |
Btrfs: fix wrong return value of btrfs_wait_for_commit()
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 <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/btrfs/transaction.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 8db401f..e6509b9 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -456,28 +456,31 @@ 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); @@ -497,9 +500,7 @@ 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; } |