relay_late_setup_files — triggers file creation
int relay_late_setup_files ( | struct rchan * chan, |
| const char * base_filename, | |
struct dentry * parent); |
struct rchan * chanchannel to operate on
const char * base_filenamebase 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
by 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.