ldiskfs/kernel_patches/patches/ext4-max-dir-size-rhel5.patch

   1 diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/ialloc.c linux-2.6.18-164.6.1_2//fs/ext4/ialloc.c
   2 --- linux-2.6.18-164.6.1_1//fs/ext4/ialloc.c    2010-03-31 17:42:50.000000000 +0530
   3 +++ linux-2.6.18-164.6.1_2//fs/ext4/ialloc.c    2010-03-31 17:43:22.000000000 +0530
   4 @@ -622,11 +622,14 @@ struct inode *ext4_new_inode_goal(handle
   5         sb = dir->i_sb;
   6         trace_mark(ext4_request_inode, "dev %s dir %lu mode %d", sb->s_id,
   7                    dir->i_ino, mode);
   8 +       sbi = EXT4_SB(sb);
   9 +       if (sbi->s_max_dir_size > 0 && i_size_read(dir) >= sbi->s_max_dir_size)
  10 +               return ERR_PTR(-EFBIG);
  11 +
  12         inode = new_inode(sb);
  13         if (!inode)
  14                 return ERR_PTR(-ENOMEM);
  15         ei = EXT4_I(inode);
  16 -       sbi = EXT4_SB(sb);
  17
  18         if (goal)
  19                 goal = sbi->s_inode_goal;
  20 diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/super.c linux-2.6.18-164.6.1_2//fs/ext4/super.c
  21 --- linux-2.6.18-164.6.1_1//fs/ext4/super.c     2010-03-31 17:42:50.000000000 +0530
  22 +++ linux-2.6.18-164.6.1_2//fs/ext4/super.c     2010-03-31 17:45:32.000000000 +0530
  23 @@ -40,6 +40,7 @@
  24  EXT4_RW_ATTR_SBI_UI(mb_order2_req, s_mb_order2_reqs);
  25  EXT4_RW_ATTR_SBI_UI(mb_stream_req, s_mb_stream_request);
  26  EXT4_RW_ATTR_SBI_UI(mb_group_prealloc, s_mb_group_prealloc);
  27 +EXT4_RW_ATTR_SBI_UI(max_dir_size, s_max_dir_size);
  28
  29  static struct attribute *ext4_attrs[] = {
  30         ATTR_LIST(delayed_allocation_blocks),
  31 @@ -48,6 +48,7 @@
  32         ATTR_LIST(mb_order2_req),
  33         ATTR_LIST(mb_stream_req),
  34         ATTR_LIST(mb_group_prealloc),
  35 +       ATTR_LIST(max_dir_size),
  36         NULL,
  37  };
  38
  39 diff -rupN linux-2.6.18-164.6.1_1//fs/ext4/ext4_sb.h linux-2.6.18-164.6.1_2//fs/ext4/ext4_sb.h
  40 --- linux-2.6.18-164.6.1_1//fs/ext4/ext4.h      2010-03-31 17:42:50.000000000 +0530
  41 +++ linux-2.6.18-164.6.1_2//fs/ext4/ext4.h      2010-03-31 17:43:22.000000000 +0530
  42 @@ -119,6 +119,7 @@ struct ext4_sb_info {
  43         /* where last allocation was done - for stream allocation */
  44         unsigned long s_mb_last_group;
  45         unsigned long s_mb_last_start;
  46 +       unsigned long s_max_dir_size;
  47
  48         /* history to debug policy */
  49         struct ext4_mb_history *s_mb_history;