Merge branch 'akpm' (patches from Andrew)

Merge fifth set of updates from Andrew Morton:

 - A few things which were awaiting merges from linux-next:
     - rtc
     - ocfs2
     - misc others

 - Willy's "dax" feature: direct fs access to memory (mainly NV-DIMMs)
   which isn't backed by pageframes.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (37 commits)
  rtc: add driver for DS1685 family of real time clocks
  MAINTAINERS: add entry for Maxim PMICs on Samsung boards
  lib/Kconfig: use bool instead of boolean
  powerpc: drop _PAGE_FILE and pte_file()-related helpers
  ocfs2: set append dio as a ro compat feature
  ocfs2: wait for orphan recovery first once append O_DIRECT write crash
  ocfs2: complete the rest request through buffer io
  ocfs2: do not fallback to buffer I/O write if appending
  ocfs2: allocate blocks in ocfs2_direct_IO_get_blocks
  ocfs2: implement ocfs2_direct_IO_write
  ocfs2: add orphan recovery types in ocfs2_recover_orphans
  ocfs2: add functions to add and remove inode in orphan dir
  ocfs2: prepare some interfaces used in append direct io
  MAINTAINERS: fix spelling mistake & remove trailing WS
  dax: does not work correctly with virtual aliasing caches
  brd: rename XIP to DAX
  ext4: add DAX functionality
  dax: add dax_zero_page_range
  ext2: get rid of most mentions of XIP in ext2
  ext2: remove ext2_aops_xip
  ...

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index a75fba67bb1f..982d934fd9ac 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -965,6 +965,11 @@ struct ext4_inode_info {
 #define EXT4_MOUNT_ERRORS_MASK          0x00070
 #define EXT4_MOUNT_MINIX_DF             0x00080 /* Mimics the Minix statfs */
 #define EXT4_MOUNT_NOLOAD               0x00100 /* Don't use existing journal*/
+#ifdef CONFIG_FS_DAX
+#define EXT4_MOUNT_DAX                  0x00200 /* Direct Access */
+#else
+#define EXT4_MOUNT_DAX                  0
+#endif
 #define EXT4_MOUNT_DATA_FLAGS           0x00C00 /* Mode for data writes: */
 #define EXT4_MOUNT_JOURNAL_DATA         0x00400 /* Write data to journal */
 #define EXT4_MOUNT_ORDERED_DATA         0x00800 /* Flush data before commit */
@@ -2578,6 +2583,7 @@ extern const struct file_operations ext4_dir_operations;
 /* file.c */
 extern const struct inode_operations ext4_file_inode_operations;
 extern const struct file_operations ext4_file_operations;
+extern const struct file_operations ext4_dax_file_operations;
 extern loff_t ext4_llseek(struct file *file, loff_t offset, int origin);
 
 /* inline.c */