ldiskfs/kernel_patches/patches/rhel6.6/ext4-remove-truncate-warning.patch

   1 Invoking ext4_truncate with i_mutex locked will cause a deadlock
   2 in lustre. Since lustre has own lock to provide protection we don't
   3 need this check at all.
   4
   5 Index: linux-2.6.32-504.el6.x86_64/fs/ext4/inode.c
   6 ===================================================================
   7 --- linux-2.6.32-504.el6.x86_64.orig/fs/ext4/inode.c
   8 +++ linux-3.10.0-504.el6.x86_64/fs/ext4/inode.c
   9 @@ -3934,8 +3934,6 @@ void ext4_end_io_work(struct work_struct
  10  int ext4_flush_unwritten_io(struct inode *inode)
  11  {
  12         int ret;
  13 -       WARN_ON_ONCE(!mutex_is_locked(&inode->i_mutex) &&
  14 -                    !(inode->i_state & I_FREEING));
  15         ret = ext4_do_flush_completed_IO(inode, NULL);
  16         ext4_unwritten_wait(inode);
  17         return ret;