ldiskfs/kernel_patches/patches/rhel6.3/ext4-notalloc_under_idatasem.patch

   1 Index: linux-stage/fs/ext4/extents.c
   2 ===================================================================
   3 --- linux-stage.orig/fs/ext4/extents.c  2015-07-13 22:22:56.000000000 +0300
   4 +++ linux-stage/fs/ext4/extents.c       2015-07-13 22:24:05.000000000 +0300
   5 @@ -4318,7 +4318,8 @@ static int ext4_find_delayed_extent(stru
   6         struct buffer_head *head = NULL;
   7         unsigned int nr_pages = PAGE_SIZE / sizeof(struct page *);
   8
   9 -       pages = kmalloc(PAGE_SIZE, GFP_KERNEL);
  10 +       /* we are running under i_data_sem so don't reenter the FS code */
  11 +       pages = kmalloc(PAGE_SIZE, GFP_NOFS);
  12         if (pages == NULL)
  13                 return -ENOMEM;
  14