RPC_MKPIPE_DENTRY(9)                     Linux Networking                    RPC_MKPIPE_DENTRY(9)



NAME
       rpc_mkpipe_dentry - make an rpc_pipefs file for kernel<->userspace communication

SYNOPSIS
       struct dentry * rpc_mkpipe_dentry(struct dentry * parent, const char * name,
                                         void * private, struct rpc_pipe * pipe);

ARGUMENTS
       parent
           dentry of directory to create new “pipe” in

       name
           name of pipe

       private
           private data to associate with the pipe, for the caller's use

       pipe
           rpc_pipe containing input parameters

DESCRIPTION
       Data is made available for userspace to read by calls to rpc_queue_upcall. The actual
       reads will result in calls to ops->upcall, which will be called with the file pointer,
       message, and userspace buffer to copy to.

       Writes can come at any time, and do not necessarily have to be responses to upcalls. They
       will result in calls to msg->downcall.

       The private argument passed here will be available to all these methods from the file
       pointer, via RPC_I(file_inode(file))->private.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                      RPC_MKPIPE_DENTRY(9)