logfs: destroy the reserved inodes while unmounting

[firefly-linux-kernel-4.4.55.git] / fs / logfs / inode.c

diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c
index a422f42238b250764011fa421d24a1a0858dd153..df093d9e4da1884b76c3b8e46f1e5111cc126a78 100644 (file)
--- a/fs/logfs/inode.c
+++ b/fs/logfs/inode.c
@@ -156,10 +156,26 @@ static void __logfs_destroy_inode(struct inode *inode)
        call_rcu(&inode->i_rcu, logfs_i_callback);
 }
 
+static void __logfs_destroy_meta_inode(struct inode *inode)
+{
+       struct logfs_inode *li = logfs_inode(inode);
+       BUG_ON(li->li_block);
+       call_rcu(&inode->i_rcu, logfs_i_callback);
+}
+
 static void logfs_destroy_inode(struct inode *inode)
 {
        struct logfs_inode *li = logfs_inode(inode);
 
+       if (inode->i_ino < LOGFS_RESERVED_INOS) {
+               /*
+                * The reserved inodes are never destroyed unless we are in
+                * unmont path.
+                */
+               __logfs_destroy_meta_inode(inode);
+               return;
+       }
+
        BUG_ON(list_empty(&li->li_freeing_list));
        spin_lock(&logfs_inode_lock);
        li->li_refcount--;