NTFS: Update attribute definition handling.

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

NTFS: Fix compilation when configured read-only.

- 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_

NTFS: Fix compilation when configured read-only.

- 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: Anton Altaparmakov <aia21@cantab.net>

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NTFS: Include linux/swap.h in fs/ntfs/attrib.c for mark_page_accessed().

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

NTFS: - Modify ->readpage and ->writepage (fs/ntfs/aops.c) so they detect
and handle the case where an attribute is converted from resident
to non-resident by a concurrent file write.

NTFS: - Modify ->readpage and ->writepage (fs/ntfs/aops.c) so they detect
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: Anton Altaparmakov <aia21@cantab.net>

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NTFS: Add fs/ntfs/attrib.[hc]::ntfs_attr_make_non_resident().

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

NTFS: - Fix bug in fs/ntfs/attrib.c::ntfs_find_vcn_nolock() where after
dropping the read lock and taking the write lock we were not checking
whether someone else did not already do t

NTFS: - Fix bug in fs/ntfs/attrib.c::ntfs_find_vcn_nolock() where after
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: Anton Altaparmakov <aia21@cantab.net>

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NTFS: Add fs/ntfs/attrib.[hc]::ntfs_attr_vcn_to_lcn_nolock() used by the new
write code.

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

NTFS: Add AT_EA in addition to AT_DATA to whitelist for being allowed to be
non-resident in fs/ntfs/attrib.c::ntfs_attr_can_be_non_resident().

Signed-off-by: Anton Altaparmakov <aia21@cantab.n

NTFS: Add AT_EA in addition to AT_DATA to whitelist for being allowed to be
non-resident in fs/ntfs/attrib.c::ntfs_attr_can_be_non_resident().

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

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NTFS: - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-locking
helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist().
This allows us to map runlist fragments with the run

NTFS: - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-locking
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: Anton Altaparmakov <aia21@cantab.net>

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NTFS: Use i_size_read() in fs/ntfs/attrib.c::ntfs_attr_set().

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

Linux-2.6.12-rc2

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

Linux-2.6.12-rc2

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!

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