[OpenAFS] Linux kernel modules - symlinks instead of rebuilds?

Derek Atkins warlord@MIT.EDU
Wed, 27 Jan 2010 10:21:01 -0500

Simon Wilkinson <sxw@inf.ed.ac.uk> writes:

> On 26 Jan 2010, at 17:11, Derrick Brashear wrote:
>> It's not without risk. You're probably ok (and assuming the symbol
>> versioning works correctly you shouldn't lose if the module does load)
>> but we don't want to rely on it.
> RedHat already do this with weak-updates. In theory they guarantee that the kernel ABI won't change underneath you using that method, and it is both safe, and the approved way of keeping modules around across kernel updates.

But only within "major" releases.  E.g. 2.6.18-92 -> 2.6.18-92.1 ->
2.6.18-92.5, but then 2.6.18-128 is "different" (I think).

> S.


       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
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