JFS: add sync_fs super_operation

diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index cc2731f0ca6dd033af30485a4c1754988c53381b..fcc1ad80cebae4f8d3eedf44129d4816362af4d3 100644 (file)
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -382,6 +382,17 @@ static struct super_block *jfs_get_sb(struct file_system_type *fs_type,
        return get_sb_bdev(fs_type, flags, dev_name, data, jfs_fill_super);
 }
 
+static int jfs_sync_fs(struct super_block *sb, int wait)
+{
+       struct jfs_log *log = JFS_SBI(sb)->log;
+
+       /* log == NULL indicates read-only mount */
+       if (log)
+               jfs_flush_journal(log, wait);
+
+       return 0;
+}
+
 static struct super_operations jfs_super_operations = {
        .alloc_inode    = jfs_alloc_inode,
        .destroy_inode  = jfs_destroy_inode,
@@ -389,6 +400,7 @@ static struct super_operations jfs_super_operations = {
        .write_inode    = jfs_write_inode,
        .delete_inode   = jfs_delete_inode,
        .put_super      = jfs_put_super,
+       .sync_fs        = jfs_sync_fs,
        .write_super_lockfs = jfs_write_super_lockfs,
        .unlockfs       = jfs_unlockfs,
        .statfs         = jfs_statfs,