rpc_queue_upcall
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## Name

rpc_queue_upcall — queue an upcall message to userspace

## Synopsis

`int rpc_queue_upcall (` | struct rpc_pipe * pipe,
| struct rpc_pipe_msg * msg`)`;

## Arguments

`pipe`

  upcall pipe on which to queue given message

`msg`

  message to queue

## Description

Call with an `inode` created by `rpc_mkpipe` to queue an upcall. A userspace process may then later read the upcall by performing a read on an open file for this inode. It is up to the caller to initialize the fields of `msg` (other than `msg`->list) appropriately.

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