Merge branch 'master' of ssh://www.aleph1.co.uk/home/aleph1/git/yaffs2

diff --combined yaffs_vfs_multi.c
index e2f002e0cac9020f43d425d582d6e486d21ce503,de3dd75988ef7de715fd80ec28ff6b96e501a903..e763e0c9c5cd3089f0513f87279f276719a429d6
--- 1/yaffs_vfs_multi.c
--- 2/yaffs_vfs_multi.c
+++ b/yaffs_vfs_multi.c
@@@ -1,8 -1,7 +1,7 @@@
  /*
   * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
   *
-  * Copyright (C) 2002-2011 Aleph One Ltd.
-  *   for Toby Churchill Ltd and Brightstar Engineering
+  * Copyright (C) 2002-2018 Aleph One Ltd.
   *
   * Created by Charles Manning <charles@aleph1.co.uk>
   * Acknowledgements:
@@@ -250,10 -249,11 +249,10 @@@ MODULE_PARM(yaffs_gc_control, "i")
  #include <linux/seq_file.h>
  #endif
  
 -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0))
 +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
  #define PAGE_CACHE_SIZE PAGE_SIZE
  #define PAGE_CACHE_SHIFT PAGE_SHIFT
  #define Y_GET_DENTRY(f) ((f)->f_path.dentry)
 -#define page_cache_release put_page
  #define YAFFS_NEW_XATTR 1
  #define YAFFS_NEW_GET_LINK 1
  #else
@@@ -262,10 -262,6 +261,10 @@@
  #define YAFFS_NEW_GET_LINK 0
  #endif
  
 +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0))
 +#define page_cache_release put_page
 +#endif
 +
  #define update_dir_time(dir) do {\
                        (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
                } while (0)
@@@ -804,7 -800,7 +803,7 @@@ static int yaffs_sync_object(struct fil
  #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
  static const struct file_operations yaffs_file_operations = {
  #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0)
 -#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 8, 0)
 +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)
        .read = new_sync_read,
        .write = new_sync_write,
  #endif
@@@ -977,7 -973,7 +976,7 @@@ static int yaffs_setxattr(struct dentr
        return error;
  }
  
 -#ifdef YAFFS_NEW_XATTR
 +#if (YAFFS_NEW_XATTR > 0)
  static ssize_t yaffs_getxattr(struct dentry * dentry, struct inode *inode,
        const char *name, void *buff, size_t size)
  {
@@@ -1820,8 -1816,10 +1819,10 @@@ static int yaffs_iterate(struct file *f
                goto out;
        }
  
-       if (!dir_emit_dots(f, dc))
+       if (!dir_emit_dots(f, dc)) {
+               yaffs_gross_unlock(dev);
                return 0;
+       }
  
        curoffs = 1;