We have a chek in there to make sure that the name won't overflow
task_struct.comm[], but it's triggering for scsi with lots of HBAs, only
scsi is using single-threaded workqueues which don't append the "/%d"
anyway.

All too hard.  Just kill the BUG_ON.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: NAndrew Morton <akpm@osdl.org>

[ kthread_create() uses vsnprintf() and limits the thing, so no
  actual overflow can actually happen regardless ]
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>