提交 5f3ab90a 编写于 作者: A Anand Jain 提交者: Chris Mason

Btrfs: rename root_times_lock to root_item_lock

Originally root_times_lock was introduced as part of send/receive
code however newly developed patch to label the subvol reused
the same lock, so renaming it for a meaningful name.
Signed-off-by: NAnand Jain <anand.jain@oracle.com>
Signed-off-by: NChris Mason <chris.mason@fusionio.com>
上级 b8b8ff59
......@@ -5114,13 +5114,13 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
right_path->search_commit_root = 1;
right_path->skip_locking = 1;
spin_lock(&left_root->root_times_lock);
spin_lock(&left_root->root_item_lock);
left_start_ctransid = btrfs_root_ctransid(&left_root->root_item);
spin_unlock(&left_root->root_times_lock);
spin_unlock(&left_root->root_item_lock);
spin_lock(&right_root->root_times_lock);
spin_lock(&right_root->root_item_lock);
right_start_ctransid = btrfs_root_ctransid(&right_root->root_item);
spin_unlock(&right_root->root_times_lock);
spin_unlock(&right_root->root_item_lock);
trans = btrfs_join_transaction(left_root);
if (IS_ERR(trans)) {
......@@ -5215,15 +5215,15 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
goto out;
}
spin_lock(&left_root->root_times_lock);
spin_lock(&left_root->root_item_lock);
ctransid = btrfs_root_ctransid(&left_root->root_item);
spin_unlock(&left_root->root_times_lock);
spin_unlock(&left_root->root_item_lock);
if (ctransid != left_start_ctransid)
left_start_ctransid = 0;
spin_lock(&right_root->root_times_lock);
spin_lock(&right_root->root_item_lock);
ctransid = btrfs_root_ctransid(&right_root->root_item);
spin_unlock(&right_root->root_times_lock);
spin_unlock(&right_root->root_item_lock);
if (ctransid != right_start_ctransid)
right_start_ctransid = 0;
......
......@@ -1645,7 +1645,7 @@ struct btrfs_root {
int force_cow;
spinlock_t root_times_lock;
spinlock_t root_item_lock;
};
struct btrfs_ioctl_defrag_range_args {
......
......@@ -1204,7 +1204,7 @@ static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
root->root_key.objectid = objectid;
root->anon_dev = 0;
spin_lock_init(&root->root_times_lock);
spin_lock_init(&root->root_item_lock);
}
static int __must_check find_and_setup_root(struct btrfs_root *tree_root,
......
......@@ -548,9 +548,9 @@ void btrfs_update_root_times(struct btrfs_trans_handle *trans,
struct btrfs_root_item *item = &root->root_item;
struct timespec ct = CURRENT_TIME;
spin_lock(&root->root_times_lock);
spin_lock(&root->root_item_lock);
item->ctransid = cpu_to_le64(trans->transid);
item->ctime.sec = cpu_to_le64(ct.tv_sec);
item->ctime.nsec = cpu_to_le32(ct.tv_nsec);
spin_unlock(&root->root_times_lock);
spin_unlock(&root->root_item_lock);
}
......@@ -4397,9 +4397,9 @@ static int full_send_tree(struct send_ctx *sctx)
if (!path)
return -ENOMEM;
spin_lock(&send_root->root_times_lock);
spin_lock(&send_root->root_item_lock);
start_ctransid = btrfs_root_ctransid(&send_root->root_item);
spin_unlock(&send_root->root_times_lock);
spin_unlock(&send_root->root_item_lock);
key.objectid = BTRFS_FIRST_FREE_OBJECTID;
key.type = BTRFS_INODE_ITEM_KEY;
......@@ -4422,9 +4422,9 @@ static int full_send_tree(struct send_ctx *sctx)
* Make sure the tree has not changed after re-joining. We detect this
* by comparing start_ctransid and ctransid. They should always match.
*/
spin_lock(&send_root->root_times_lock);
spin_lock(&send_root->root_item_lock);
ctransid = btrfs_root_ctransid(&send_root->root_item);
spin_unlock(&send_root->root_times_lock);
spin_unlock(&send_root->root_item_lock);
if (ctransid != start_ctransid) {
WARN(1, KERN_WARNING "btrfs: the root that you're trying to "
......
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