Man page 9 : relay_late_setup_files

relay_late_setup_files - triggers file creation

int relay_late_setup_files(struct rchan *  chan , const char *  base_filename , struct dentry *  parent );

chan
    channel to operate on

base_filename
    base name of files to create

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. Useful to do early tracing in kernel, before VFS is up, for example.