Merge branch 'akpm' (patches from Andrew)

Merge updates from Andrew Morton:

 - a few misc things

 - ocfs2 updates

 - v9fs updates

 - MM

 - procfs updates

 - lib/ updates

 - autofs updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits)
  autofs: small cleanup in autofs_getpath()
  autofs: clean up includes
  autofs: comment on selinux changes needed for module autoload
  autofs: update MAINTAINERS entry for autofs
  autofs: use autofs instead of autofs4 in documentation
  autofs: rename autofs documentation files
  autofs: create autofs Kconfig and Makefile
  autofs: delete fs/autofs4 source files
  autofs: update fs/autofs4/Makefile
  autofs: update fs/autofs4/Kconfig
  autofs: copy autofs4 to autofs
  autofs4: use autofs instead of autofs4 everywhere
  autofs4: merge auto_fs.h and auto_fs4.h
  fs/binfmt_misc.c: do not allow offset overflow
  checkpatch: improve patch recognition
  lib/ucs2_string.c: add MODULE_LICENSE()
  lib/mpi: headers cleanup
  lib/percpu_ida.c: use _irqsave() instead of local_irq_save() + spin_lock
  lib/idr.c: remove simple_ida_lock
  lib/bitmap.c: micro-optimization for __bitmap_complement()
  ...

1 files changed, 36 insertions, 10 deletions

diff --git a/fs/autofs4/Kconfig b/fs/autofs4/Kconfig
index 44727bf18297..99fda4d6da25 100644
--- a/fs/autofs4/Kconfig
+++ b/fs/autofs4/Kconfig
@@ -1,5 +1,7 @@
 config AUTOFS4_FS
-	tristate "Kernel automounter version 4 support (also supports v3)"
+	tristate "Kernel automounter version 4 support (also supports v3 and v5)"
+	default n
+	depends on AUTOFS_FS = n
 	help
 	  The automounter is a tool to automatically mount remote file systems
 	  on demand. This implementation is partially kernel-based to reduce
@@ -7,14 +9,38 @@ config AUTOFS4_FS
 	  automounter (amd), which is a pure user space daemon.
 
 	  To use the automounter you need the user-space tools from
-	  <https://www.kernel.org/pub/linux/daemons/autofs/v4/>; you also
-	  want to answer Y to "NFS file system support", below.
+	  <https://www.kernel.org/pub/linux/daemons/autofs/>; you also want
+	  to answer Y to "NFS file system support", below.
 
-	  To compile this support as a module, choose M here: the module will be
-	  called autofs4.  You will need to add "alias autofs autofs4" to your
-	  modules configuration file.
+	  This module is in the process of being renamed from autofs4 to
+	  autofs. Since autofs is now the only module that provides the
+	  autofs file system the module is not version 4 specific.
 
-	  If you are not a part of a fairly large, distributed network or
-	  don't have a laptop which needs to dynamically reconfigure to the
-	  local network, you probably do not need an automounter, and can say
-	  N here.
+	  The autofs4 module is now built from the source located in
+	  fs/autofs. The autofs4 directory and its configuration entry
+	  will be removed two kernel versions from the inclusion of this
+	  change.
+
+	  Changes that will need to be made should be limited to:
+	  - source include statments should be changed from autofs_fs4.h to
+	    autofs_fs.h since these two header files have been merged.
+	  - user space scripts that manually load autofs4.ko should be
+	    changed to load autofs.ko. But since the module directory name
+	    and the module name are the same as the file system name there
+	    is no need to manually load module.
+	  - any "alias autofs autofs4" will need to be removed.
+	  - due to the autofs4 module directory name not being the same as
+	    its file system name autoloading didn't work properly. Because
+	    of this kernel configurations would often build the module into
+	    the kernel. This may have resulted in selinux policies that will
+	    prevent the autofs module from autoloading and will need to be
+	    updated.
+
+	  Please configure AUTOFS_FS instead of AUTOFS4_FS from now on.
+
+	  NOTE: Since the modules autofs and autofs4 use the same file system
+		type name of "autofs" only one can be built. The "depends"
+		above will result in AUTOFS4_FS not appearing in .config for
+		any setting of AUTOFS_FS other than n and AUTOFS4_FS will
+		appear under the AUTOFS_FS entry otherwise which is intended
+		to draw attention to the module rename change.