specifying whether the cluster are being allocated to extend an
        attribute or to fill a hole.
      - Change ntfs_attr_make_non_resident() to call ntfs_cluster_alloc()
        with @is_extension set to TRUE and remove the runlist terminator
        fixup code as this is now done by ntfs_cluster_alloc().
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

        search context as argument.  This allows calling it with the mft
        record mapped.  Update all callers.
      - Fix potential deadlock in ntfs_mft_data_extend_allocation_nolock()
	error handling by passing in the active search context when calling
	ntfs_cluster_free().
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      search context as argument.  This allows calling it with the mft
      record mapped.  Update all callers.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      since we otherwise get into a lock reversal deadlock if a read locked
      runlist is passed in. In the process also change it to take an ntfs
      inode instead of a vfs inode as parameter.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      importantly to take a locked runlist rather than them locking it
      which leads to lock reversal.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      with a 64-bit variable and a int, i.e. 32-bit, constant.  This causes
      the higher order 32-bits of the 64-bit variable to be zeroed.  To fix
      this cast the 'const' to the same 64-bit type as 'var'.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

- Add ifdef NTFS_RW around write specific code if fs/ntfs/runlist.[hc] and
  fs/ntfs/attrib.[hc].
- Minor bugfix to fs/ntfs/attrib.c::ntfs_attr_make_non_resident() where the
  runlist was not freed in all error cases.
- Add fs/ntfs/runlist.[hc]::ntfs_rl_find_vcn_nolock().
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      fs/ntfs/lcnalloc.c.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

        dropping the read lock and taking the write lock we were not checking
        whether someone else did not already do the work we wanted to do.
      - Rename ntfs_find_vcn_nolock() to ntfs_attr_find_vcn_nolock().
      - Tidy up some comments in fs/ntfs/runlist.c.
      - Add LCN_ENOMEM and LCN_EIO definitions to fs/ntfs/runlist.h.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

Signed-off-by: NRandy Dunlap <rddunlap@osdl.org>
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

	helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist().
	This allows us to map runlist fragments with the runlist lock already
	held without having to drop and reacquire it around the call.  Adapt
	all callers.
      - Change ntfs_find_vcn() to ntfs_find_vcn_nolock() which takes a locked
	runlist.  This allows us to find runlist elements with the runlist
	lock already held without having to drop and reacquire it around the
	call.  Adapt all callers.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      fs/ntfs/lcnalloc.c::ntfs_cluster_alloc().
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!