This patch series addresses the comments received from the first revision.

We didn't change our use of ext4_get_block() to ext4_map_blocks() because it
seems like we would need to add code to deal with journal entries, similar to
what is done in _ext4_get_block().  This seemed more complicated than using a
temporary struct buffer_head on the stack - please let us know if you
disagree.

Matthew Wilcox (3):
  Fix XIP fault vs truncate race
  xip: Add xip_zero_page_range
  ext4: Add xip hole punching

Ross Zwisler (1):
  ext4: Add XIP functionality

 Documentation/filesystems/ext4.txt |    2 +
 Documentation/filesystems/xip.txt  |    3 ++
 fs/Kconfig                         |    2 +-
 fs/ext4/Kconfig                    |   11 +++++
 fs/ext4/Makefile                   |    1 +
 fs/ext4/ext4.h                     |    4 +-
 fs/ext4/file.c                     |   17 +++++++
 fs/ext4/inode.c                    |   86 +++++++++++++++++++++++++-----------
 fs/ext4/namei.c                    |   11 ++++-
 fs/ext4/super.c                    |   36 ++++++++++++++-
 fs/ext4/xip.c                      |   78 ++++++++++++++++++++++++++++++++
 fs/ext4/xip.h                      |   24 ++++++++++
 include/linux/fs.h                 |    8 ++++
 mm/filemap_xip.c                   |   55 +++++++++++++++--------
 14 files changed, 289 insertions(+), 49 deletions(-)
 create mode 100644 fs/ext4/xip.c
 create mode 100644 fs/ext4/xip.h

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1.7.10.4