Btrfs v0.14 Released

[Jan Engelhardt]

On Thursday 2008-05-01 22:10, Jeff Mahoney wrote:

>>>> Couldn't you #ifdef based on CONFIG_SECURITY_APPARMOR ? This ought to
>>>> work for Hardy. However the next development kernel (Intrepid) does not
>>>> have the APPARMOR patches, so just knowing that its an UBUNTU kernel is
>>>> not specific enough.
>>>
>>> I've been assuming the apparmor patches change remove_suid even when they are 
>>> not enabled in the config.
>> 
>> Lets get Kees involved. He developed the patch set for Hardy. I would
>> hope that if CONFIG_SECURITY_APPARMOR=n then the source would default to
>> its normal state.
>
>remove_suid() isn't the only change AppArmor makes to the VFS interface.
>It's pretty invasive and requires that dentries are passed with a
>companion vfsmount in most cases. Putting #ifdefs around all that code
>would make the problem worse, not better.

An alternative approach, and IMHO better suited, is to:

	make -C ${kdir} all I_HAZ_AN_APPARMOR=1

with this Makefile

	ifneq (${I_HAZ_AN_APPARMOR},)
	EXTRA_CFLAGS += -DHAZ_APPARMOR
	endif

This works very well for kmp-rpms, which are tied to a specific
distro, sometimes kernel, anyway.