ecryptfs lock loop

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Hi,

one student (in CC) found out a suspicioous locking dependence in
ecryptfs code while debugging/running a static lockdep analyzer.

I'm unable to say whether it is only a theoretical issue or a real bug,
any ideas?

Here it comes:

function ecryptfs_send_message:
------------------------------
ecryptfs_daemon_hash_mux <- ecryptfs_msg_ctx_lists_mux
(in function ecryptfs_send_message_locked)

function ecryptfs_wait_for_response:
-----------------------------------
cryptfs_msg_ctx_lists_mux <- msg_ctx->mux

function ecryptfs_process_response:
----------------------------------
msg_ctx->mux <- ecryptfs_daemon_hash_mux


<- means lock dependency
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