ldiskfs/kernel_patches/patches/sles11sp2/ext4-ext_generation.patch

   1 ---
   2  fs/ext4/ext4.h         |    1 +
   3  fs/ext4/ext4_extents.h |    5 +++++
   4  fs/ext4/extents.c      |    2 ++
   5  3 files changed, 8 insertions(+)
   6
   7 --- a/fs/ext4/ext4.h
   8 +++ b/fs/ext4/ext4.h
   9 @@ -821,6 +821,7 @@ struct ext4_inode_info {
  10         struct inode vfs_inode;
  11         struct jbd2_inode *jinode;
  12
  13 +       unsigned long i_ext_generation;
  14         struct ext4_ext_cache i_cached_extent;
  15         /*
  16          * File creation time. Its function is same as that of
  17 --- a/fs/ext4/ext4_extents.h
  18 +++ b/fs/ext4/ext4_extents.h
  19 @@ -193,6 +193,11 @@ static inline unsigned short ext_depth(s
  20         return le16_to_cpu(ext_inode_hdr(inode)->eh_depth);
  21  }
  22
  23 +static inline void ext4_ext_tree_changed(struct inode *inode)
  24 +{
  25 +       EXT4_I(inode)->i_ext_generation++;
  26 +}
  27 +
  28  static inline void
  29  ext4_ext_invalidate_cache(struct inode *inode)
  30  {
  31 --- a/fs/ext4/extents.c
  32 +++ b/fs/ext4/extents.c
  33 @@ -1874,6 +1874,7 @@ cleanup:
  34                 ext4_ext_drop_refs(npath);
  35                 kfree(npath);
  36         }
  37 +       ext4_ext_tree_changed(inode);
  38         ext4_ext_invalidate_cache(inode);
  39         return err;
  40  }
  41 @@ -2681,6 +2682,7 @@ again:
  42                 }
  43         }
  44  out:
  45 +       ext4_ext_tree_changed(inode);
  46         ext4_ext_drop_refs(path);
  47         kfree(path);
  48         if (err == -EAGAIN)