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RELAY_OPEN(9)		    relay interface support		 RELAY_OPEN(9)

NAME
       relay_open - create a new relay channel

SYNOPSIS
       struct rchan * relay_open(const char * base_filename,
				 struct dentry * parent, size_t subbuf_size,
				 size_t n_subbufs,
				 struct rchan_callbacks * cb,
				 void * private_data);

ARGUMENTS
       base_filename
	   base name of files to create, NULL for buffering only

       parent
	   dentry of parent directory, NULL for root directory or buffer

       subbuf_size
	   size of sub-buffers

       n_subbufs
	   number of sub-buffers

       cb
	   client callback functions

       private_data
	   user-defined data

DESCRIPTION
       Returns channel pointer if successful, NULL otherwise.

       Creates a channel buffer for each cpu using the sizes and attributes
       specified. The created channel buffer files will be named
       base_filename0...base_filenameN-1. File permissions will be S_IRUSR.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013			 RELAY_OPEN(9)

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