Trond Myklebust bc74b4f5e6 SUNRPC: Allow the cache_detail to specify alternative upcall mechanisms ...

For events that are rare, such as referral DNS lookups, it makes limited
sense to have a daemon constantly listening for upcalls on a channel. An
alternative in those cases might simply be to run the app that fills the
cache using call_usermodehelper_exec() and friends.

The following patch allows the cache_detail to specify alternative upcall
mechanisms for these particular cases.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2009-08-09 15:14:29 -04:00

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