[OpenAFS-devel] linux keyring handling

[Christof Hanke]

Hello,

we just had a problem with the kernels of SLES 11 SP3.
The keyrings wouldn't work and the pagsh would be apparently 
work, but was ineffective. (That's why http://gerrit.openafs.org/#change,10179)

The problem is that in linux/security/keys/key.c __key_instantiate_and_link() they make a decision upon
what's done for STRUCT_KEY_TYPE_HAS_PREPARSE in the cachemanager like this :

                /* instantiate the key */
                if (key->type->instantiate)
                        ret = key->type->instantiate(key, prep->data, prep->datalen);
                else if (key->type->instantiate_prep)
                        ret = key->type->instantiate_prep(key, prep);



So, the question is :
is the member key->type->instantiate_prep present in any other Linux-kernels ?

I have a patch in the srpm which applies only to the affected kernels.
However, I am a bit reluctant to add yet another ifdef to the cachemanager just for one flavour  of kernel, which will
go away in a few years time anyway again.

Is it ok to keep that patch distribution-local or should I push a generic patch (including configure test etc) ?


Christof