src/patches/suse-2.6.27.31/patches.fixes/ocfs2-access-and-dirty-the-buffer_head-in-mark_writ.patch

   1 From: Tao Ma <tao.ma@oracle.com>
   2 Date: Fri, 9 Jan 2009 07:32:48 +0800
   3 Subject: [PATCH] ocfs2: Access and dirty the buffer_head in mark_written.
   4 Patch-mainline: 2.6.29
   5
   6 In __ocfs2_mark_extent_written, when we meet with the situation
   7 of c_split_covers_rec, the old solution just replace the extent
   8 record and forget to access and dirty the buffer_head. This will
   9 cause a problem when the unwritten extent is in an extent block.
  10 So access and dirty it.
  11
  12 Signed-off-by: Tao Ma <tao.ma@oracle.com>
  13 Signed-off-by: Mark Fasheh <mfasheh@suse.com>
  14 ---
  15  fs/ocfs2/alloc.c |   27 ++++++++++++++++++++++++++-
  16  1 files changed, 26 insertions(+), 1 deletions(-)
  17
  18 Index: linux-2.6.27-sle11_ocfs2_update2/fs/ocfs2/alloc.c
  19 ===================================================================
  20 --- linux-2.6.27-sle11_ocfs2_update2.orig/fs/ocfs2/alloc.c
  21 +++ linux-2.6.27-sle11_ocfs2_update2/fs/ocfs2/alloc.c
  22 @@ -4708,6 +4708,29 @@ out:
  23         return ret;
  24  }
  25
  26 +static int ocfs2_replace_extent_rec(struct inode *inode,
  27 +                                   handle_t *handle,
  28 +                                   struct ocfs2_path *path,
  29 +                                   struct ocfs2_extent_list *el,
  30 +                                   int split_index,
  31 +                                   struct ocfs2_extent_rec *split_rec)
  32 +{
  33 +       int ret;
  34 +
  35 +       ret = ocfs2_journal_access(handle, inode, path_leaf_bh(path),
  36 +                                  OCFS2_JOURNAL_ACCESS_WRITE);
  37 +       if (ret) {
  38 +               mlog_errno(ret);
  39 +               goto out;
  40 +       }
  41 +
  42 +       el->l_recs[split_index] = *split_rec;
  43 +
  44 +       ocfs2_journal_dirty(handle, path_leaf_bh(path));
  45 +out:
  46 +       return ret;
  47 +}
  48 +
  49  /*
  50   * Mark part or all of the extent record at split_index in the leaf
  51   * pointed to by path as written. This removes the unwritten
  52 @@ -4802,7 +4825,9 @@ static int __ocfs2_mark_extent_written(s
  53
  54         if (ctxt.c_contig_type == CONTIG_NONE) {
  55                 if (ctxt.c_split_covers_rec)
  56 -                       el->l_recs[split_index] = *split_rec;
  57 +                       ret = ocfs2_replace_extent_rec(inode, handle,
  58 +                                                      path, el,
  59 +                                                      split_index, split_rec);
  60                 else
  61                         ret = ocfs2_split_and_insert(inode, handle, path, et,
  62                                                      &last_eb_bh, split_index,