Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  kill I_LOCK
  fold do_sync_file_range into sys_sync_file_range
  fix up O_SYNC comments
  VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size
  fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_all
  vfs: remove extraneous NULL d_inode check from do_filp_open
  fs: no games with DCACHE_UNHASHED
  fs: anon_inodes implement dname
  dio: fix use-after-free

1 files changed, 7 insertions, 10 deletions

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 94f5110c4655..2c994591f4d7 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -35,14 +35,13 @@ static int anon_inodefs_get_sb(struct file_system_type *fs_type, int flags,
                              mnt);
 }
 
-static int anon_inodefs_delete_dentry(struct dentry *dentry)
+/*
+ * anon_inodefs_dname() is called from d_path().
+ */
+static char *anon_inodefs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
-        /*
-         * We faked vfs to believe the dentry was hashed when we created it.
-         * Now we restore the flag so that dput() will work correctly.
-         */
-        dentry->d_flags |= DCACHE_UNHASHED;
-        return 1;
+        return dynamic_dname(dentry, buffer, buflen, "anon_inode:%s",
+                                dentry->d_name.name);
 }
 
 static struct file_system_type anon_inode_fs_type = {
@@ -51,7 +50,7 @@ static struct file_system_type anon_inode_fs_type = {
         .kill_sb        = kill_anon_super,
 };
 static const struct dentry_operations anon_inodefs_dentry_operations = {
-        .d_delete       = anon_inodefs_delete_dentry,
+        .d_dname        = anon_inodefs_dname,
 };
 
 /*
@@ -119,8 +118,6 @@ struct file *anon_inode_getfile(const char *name,
         atomic_inc(&anon_inode_inode->i_count);
 
         path.dentry->d_op = &anon_inodefs_dentry_operations;
-        /* Do not publish this dentry inside the global dentry hash table */
-        path.dentry->d_flags &= ~DCACHE_UNHASHED;
         d_instantiate(path.dentry, anon_inode_inode);
 
         error = -ENFILE;