supported by NTFS which is 4096 bytes).

      Minor tidying.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      preparation for the big rewrite of write(2) support in ntfs.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

*** Warning: "bit_spin_lock" [fs/ntfs/ntfs.ko] undefined!
*** Warning: "bit_spin_unlock" [fs/ntfs/ntfs.ko] undefined!

Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      fs/ntfs/aops.c::ntfs_end_buffer_async_read() to a bit spin lock
      in the first buffer head of a page.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

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

      where a concurrent truncate has truncated the runlist under our feet.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      lock protection over the buffer submission for i/o which allows the
      removal of the get_bh()/put_bh() pairs for each buffer.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

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

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      for  mft record writing.  I had missed the writepage based mft record
      write code path.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      if the runlist was not mapped at all and a mapping error occured we
      would leave the runlist locked on exit to the function so that the
      next access to the same file would try to take the lock and deadlock.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      better code generation and one less sparse warning in fs/ntfs/aops.c.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

        and handle the case where an attribute is converted from resident
        to non-resident by a concurrent file write.
      - Reorder some operations when converting an attribute from resident
        to non-resident (fs/ntfs/attrib.c) so it is safe wrt concurrent
        ->readpage and ->writepage.
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>

Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      fs/ntfs/aops.c::ntfs_{prepare,commit}_write()() and re-enable it.
      It should be safe now.  (Famous last words...)
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      and abort if it fails again.
Signed-off-by: NAnton Altaparmakov <aia21@cantab.net>

      access to the i_size and other size fields using the size_lock.
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!