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| author | Miao Xie <miaox@cn.fujitsu.com> | 2014-02-20 18:08:56 +0800 |
|---|---|---|
| committer | Josef Bacik <jbacik@fb.com> | 2014-03-10 15:16:42 -0400 |
| commit | bb14a59b619d3a9993c3fa04bb10347db35ca550 (patch) | |
| tree | 5c2af85d47ef6eab469a4e33eb4f5a2820bdf077 /fs/btrfs/tree-log.c | |
| parent | 7483e1a4464999c72b231af0efe39cb31fd73f14 (diff) | |
| download | lwn-bb14a59b619d3a9993c3fa04bb10347db35ca550.tar.gz lwn-bb14a59b619d3a9993c3fa04bb10347db35ca550.zip | |
Btrfs: use signed integer instead of unsigned long integer for log transid
The log trans id is initialized to be 0 every time we create a log tree,
and the log tree need be re-created after a new transaction is started,
it means the log trans id is unlikely to be a huge number, so we can use
signed integer instead of unsigned long integer to save a bit space.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 285c168391f3..128a904ceac0 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2362,7 +2362,7 @@ static int update_log_root(struct btrfs_trans_handle *trans, } static int wait_log_commit(struct btrfs_trans_handle *trans, - struct btrfs_root *root, unsigned long transid) + struct btrfs_root *root, int transid) { DEFINE_WAIT(wait); int index = transid % 2; @@ -2434,7 +2434,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, int ret; struct btrfs_root *log = root->log_root; struct btrfs_root *log_root_tree = root->fs_info->log_root_tree; - unsigned long log_transid = 0; + int log_transid = 0; struct blk_plug plug; mutex_lock(&root->log_mutex); |