Re: [Adeos-main] [PULL] 2.6.38-noarch: Re-add root preemption notifier

[Jan Kiszka <jan.kiszka@domain.hid>]

On 2011-10-14 14:34, Gilles Chanteperdrix wrote:
> On 10/14/2011 01:12 PM, Jan Kiszka wrote:
>> The following changes since commit 641d8e87531c6367a6357335378194ea06a23701:
>>
>>   ipipe: Prevent unwritable pages after mprotect (2011-07-21 09:51:56 +0200)
>>
>> are available in the git repository at:
>>   git://git.kiszka.org/ipipe queues/2.6.38-noarch
>>
>> Jan Kiszka (1):
>>       ipipe: Re-add root preemption notifier
>>
>>  include/linux/ipipe.h      |   35 +++++++++++++++++++++++++++++++++++
>>  include/linux/ipipe_base.h |    2 +-
>>  kernel/ipipe/core.c        |    6 ++++++
>>  3 files changed, 42 insertions(+), 1 deletions(-)
>>
>> ---
>>
>> ipipe: Re-add root preemption notifier
>>
>> Restore the original root preemption notifiers, once added for 2.6.35
>> but then lost again on 2.6.36 merge. Unfortunately, the feature flag was
>> not lost. So it became meaningless and we have to rename it to
>> __IPIPE_FEATURE_ROOTPREEMPT_NOTIFIER.
> 
> The I-pipe defines a generic infrastructure for events, why bypassing it?
> 

Because
 - this is no kernel-to-ipipe event, but an ipipe-to-kernel (kvm) one
 - there is no relation to domains here
 - there is no relation to a shadow task here (the event is fired over
   a pure Linux task)

Jan

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