nfsd4: allow 4.0 clients to change callback path

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The rfc allows a client to change the callback parameters, but we didn't
previously implement it.

Teach the callbacks to rerun themselves (by placing themselves on a
workqueue) when they recognize that their rpc task has been killed and
that the callback connection has changed.

Then we can change the callback connection by setting up a new rpc
client, modifying the nfs4 client to point at it, waiting for any work
in progress to complete, and then shutting down the old client.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

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This commit is contained in:

J. Bruce Fields 2010-03-07 23:39:01 -05:00

parent 2bf23875f5

commit 4b21d0defc

3 changed files with 24 additions and 14 deletions

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29

fs/nfsd/nfs4callback.c

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7

fs/nfsd/nfs4state.c

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2

fs/nfsd/state.h

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