relay_late_setup_files — triggers file creation
|struct rchan * chan,|
|const char * base_filename,|
|struct dentry * parent|
struct rchan * chan
channel to operate on
const char * base_filename
base name of files to create
struct dentry * parent
dentry of parent directory,
NULL for root directory
Returns 0 if successful, non-zero otherwise.
Use to setup files for a previously buffer-only channel created
relay_open with a NULL parent dentry.
For example, this is useful for perfomring early tracing in kernel, before VFS is up and then exposing the early results once the dentry is available.