linux.git/fs/autofs4, branch master

autofs: remove left-over autofs4 stubs

2018-06-11T15:22:34+00:00

There's no need to retain the fs/autofs4 directory for backward
compatibility.

Adding an AUTOFS4_FS fragment to the autofs Kconfig and a module alias
for autofs4 is sufficient for almost all cases. Not keeping fs/autofs4
remnants will prevent "insmod /autofs4/autofs4.ko" from working
but this shouldn't be used in automation scripts rather than
modprobe(8).

There were some comments about things to look out for with the module
rename in the fs/autofs4/Kconfig that is removed by this patch, see the
commit patch if you are interested.

One potential problem with this change is that when the
fs/autofs/Kconfig fragment for AUTOFS4_FS is removed any AUTOFS4_FS
entries will be removed from the kernel config, resulting in no autofs
file system being built if there is no AUTOFS_FS entry also.

This would have also happened if the fs/autofs4 remnants had remained
and is most likely to be a problem with automated builds.

Please check your build configurations before the removal which will
occur after the next couple of kernel releases.

Acked-by: Ian Kent 
[ With edits and commit message from Ian Kent ]
Signed-off-by: Linus Torvalds

autofs: comment on selinux changes needed for module autoload

2018-06-08T00:34:39+00:00

Due to the autofs4 module using a file system type name of autofs
different from the module containing directory name autoload did not
function properly.  To work around this kernel configurations have often
elected to build the module into the kernel.

This can result in selinux policies that prohibit autoloading of the
autofs module which need to be changed.

Add a comment about this to "possible changes" section of the autofs4
module help.

Link: http://lkml.kernel.org/r/152686474171.6155.1239659539983577463.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs: create autofs Kconfig and Makefile

2018-06-08T00:34:39+00:00

Create Makefile and Kconfig for autofs module.

[raven@themaw.net: make autofs4 Kconfig depend on AUTOFS_FS]
  Link: http://lkml.kernel.org/r/152687649097.8263.7046086367407522029.stgit@pluto.themaw.net
Link: http://lkml.kernel.org/r/152626705591.28589.356365986974038383.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Tested-by: Randy Dunlap 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs: delete fs/autofs4 source files

2018-06-08T00:34:39+00:00

Delete the now unused autofs4 module files.

Link: http://lkml.kernel.org/r/152626707391.28589.3553309771262313504.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs: update fs/autofs4/Makefile

2018-06-08T00:34:39+00:00

Update Makefile to build from source in fs/autofs instead of fs/autofs4.

Link: http://lkml.kernel.org/r/152626706824.28589.1915028175544560855.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs: update fs/autofs4/Kconfig

2018-06-08T00:34:39+00:00

Update Kconfig and add a depricated warning.

[raven@themaw.net: make autofs4 Kconfig depend on AUTOFS_FS]
  Link: http://lkml.kernel.org/r/152687649097.8263.7046086367407522029.stgit@pluto.themaw.net
Link: http://lkml.kernel.org/r/152626706133.28589.11994171621899212952.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Tested-by: Randy Dunlap 
Cc: Al Viro 
Cc: Arnd Bergmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs4: use autofs instead of autofs4 everywhere

2018-06-08T00:34:39+00:00

Update naming within autofs source to be consistent by changing
occurrences of autofs4 to autofs.

Link: http://lkml.kernel.org/r/152626703688.28589.8315406711135226803.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs4: merge auto_fs.h and auto_fs4.h

2018-06-08T00:34:39+00:00

The autofs module has long since been removed so there's no need to have
two separate include files for autofs.

Link: http://lkml.kernel.org/r/152626703024.28589.9571964661718767929.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs: mount point create should honour passed in mode

2018-04-21T00:18:35+00:00

The autofs file system mkdir inode operation blindly sets the created
directory mode to S_IFDIR | 0555, ingoring the passed in mode, which can
cause selinux dac_override denials.

But the function also checks if the caller is the daemon (as no-one else
should be able to do anything here) so there's no point in not honouring
the passed in mode, allowing the daemon to set appropriate mode when
required.

Link: http://lkml.kernel.org/r/152361593601.8051.14014139124905996173.stgit@pluto.themaw.net
Signed-off-by: Ian Kent 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

autofs4: use wait_event_killable

2018-04-11T17:28:36+00:00

This playing with signals to allow only fatal signals appears to predate
the introduction of wait_event_killable(), and I'm fairly sure that
wait_event_killable is what was meant to happen here.

[avagin@openvz.org: use wake_up() instead of wake_up_interruptible]
  Link: http://lkml.kernel.org/r/20180331022839.21277-1-avagin@openvz.org
Link: http://lkml.kernel.org/r/20180319191609.23880-1-willy@infradead.org
Signed-off-by: Matthew Wilcox 
Acked-by: Ian Kent 
Cc: Matthew Wilcox 
Cc: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds