target/linux/generic/patches-3.9/503-yaffs-Replace-yaffs_dir_llseek-with-Linux-generic-ll.patch

   1 From cd6657c4bde20886b0805ea9f2cbac7ec25ac2e5 Mon Sep 17 00:00:00 2001
   2 From: Charles Manning <cdhmanning@gmail.com>
   3 Date: Tue, 30 Nov 2010 16:01:28 +1300
   4 Subject: [PATCH 1/2] yaffs: Replace yaffs_dir_llseek with Linux generic
   5  llseek
   6
   7 commit ed8188fb7659cfb65b5adbe154d143190ade0324 upstream.
   8
   9 There was not much point in having the yaffs version as it is
  10 functionally equivalent to the kernel one.
  11
  12 This also gets rid of using BKL in yaffs2.
  13
  14 Signed-off-by: Charles Manning <cdhmanning@gmail.com>
  15 ---
  16  yaffs_vfs.c       |   30 +-----------------------------
  17  yaffs_vfs_multi.c |   30 +-----------------------------
  18  2 files changed, 2 insertions(+), 58 deletions(-)
  19
  20 --- a/fs/yaffs2/yaffs_vfs_glue.c
  21 +++ b/fs/yaffs2/yaffs_vfs_glue.c
  22 @@ -342,8 +342,6 @@ static int yaffs_follow_link(struct dent
  23
  24  static void yaffs_touch_super(yaffs_dev_t *dev);
  25
  26 -static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin);
  27 -
  28  static int yaffs_vfs_setattr(struct inode *, struct iattr *);
  29
  30
  31 @@ -460,7 +458,7 @@ static const struct file_operations yaff
  32         .read = generic_read_dir,
  33         .readdir = yaffs_readdir,
  34         .fsync = yaffs_sync_object,
  35 -       .llseek = yaffs_dir_llseek,
  36 +       .llseek = generic_file_llseek,
  37  };
  38
  39  static const struct super_operations yaffs_super_ops = {
  40 @@ -1534,32 +1532,6 @@ static void yaffs_release_space(struct f
  41  }
  42
  43
  44 -static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin)
  45 -{
  46 -       long long retval;
  47 -
  48 -       lock_kernel();
  49 -
  50 -       switch (origin){
  51 -       case 2:
  52 -               offset += i_size_read(file->f_path.dentry->d_inode);
  53 -               break;
  54 -       case 1:
  55 -               offset += file->f_pos;
  56 -       }
  57 -       retval = -EINVAL;
  58 -
  59 -       if (offset >= 0){
  60 -               if (offset != file->f_pos)
  61 -                       file->f_pos = offset;
  62 -
  63 -               retval = offset;
  64 -       }
  65 -       unlock_kernel();
  66 -       return retval;
  67 -}
  68 -
  69 -
  70  static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
  71  {
  72         yaffs_obj_t *obj;