Btrfs: Add basic lockfs calls
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index b6982f0..8b52c69 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -429,6 +429,17 @@
.kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV,
};
+static void btrfs_write_super_lockfs(struct super_block *sb)
+{
+ struct btrfs_root *root = btrfs_sb(sb);
+ btrfs_transaction_flush_work(root);
+}
+
+static void btrfs_unlockfs(struct super_block *sb)
+{
+ struct btrfs_root *root = btrfs_sb(sb);
+ btrfs_transaction_queue_work(root, HZ * 30);
+}
static struct super_operations btrfs_super_ops = {
.delete_inode = btrfs_delete_inode,
@@ -442,8 +453,9 @@
.alloc_inode = btrfs_alloc_inode,
.destroy_inode = btrfs_destroy_inode,
.statfs = btrfs_statfs,
+ .write_super_lockfs = btrfs_write_super_lockfs,
+ .unlockfs = btrfs_unlockfs,
};
-
static int __init init_btrfs_fs(void)
{
int err;