usb kthreads

[Andrew Thompson]

2009/8/13 Kostik Belousov <kostikbel at gmail.com>
>
> On Thu, Aug 13, 2009 at 12:30:02AM -0700, Andrew Thompson wrote:
> > Hi,
> >
> >
> > Here is an aesthetic patch to change the usb kernel processes to threads,
> > this hides them from the usual 'ps' output. Please test and review.
> >
> >  1290  ??  DL     0:00.00 [usbus0]
> >  [lots and lots more...]
> >  1309  ??  DL     0:00.00 [usbus4]
> >
> > After the patch they can be seen as kernel threads.
> >
> >   PID    TID COMM             TDNAME           CPU  PRI STATE   WCHAN
> >     0 100000 kernel           swapper            0   68 sleep   sched
> >     0 100009 kernel           firmware taskq     0   92 sleep   -
> >     0 100020 kernel           kqueue taskq       0   92 sleep   -
> >     0 100021 kernel           acpi_task_0        0   92 sleep   -
> >     0 100022 kernel           acpi_task_1        0   92 sleep   -
> >     0 100023 kernel           acpi_task_2        0   92 sleep   -
> >     0 100027 kernel           thread taskq       0   92 sleep   -
> >     0 100031 kernel           bwi0 taskq         0   16 sleep   -
> >     0 100032 kernel           bwi0 taskq         0   16 sleep   -
> >     0 100106 kernel           usbus0             0   20 sleep   wmsg
> >     0 100107 kernel           usbus0             0   16 sleep   wmsg
> >     0 100108 kernel           usbus0             0   20 sleep   wmsg
> >     0 100109 kernel           usbus0             0   20 sleep   wmsg
> >     [ ... ]
> >     0 100127 kernel           usbus4             0   20 sleep   wmsg
> >
> Can you use this opportunity to change "wmsg" wait channel name
> to something having "usb" in the name ?

When the thread is idle this should be `-` ?

Andrew