View source for KThread

=Thread Scheduling Mask=
The thread scheduling mask is made of a low nibble (enum) and a high nibble (bitfield).

Low nibble:

{| class="wikitable" border="1"
|-
! Value
! Description
|-
| 0
| The thread is not scheduled
|-
| 1
| The thread is scheduled
|-
| 2
| The thread is being terminated
|}

High nibble:
{| class="wikitable" border="1"
|-
! Mask
! Description
|-
| 0
| Nothing special
|-
| 0x8 (bit 3)
| The thread has been debug-locked
|}

A thread is scheduled *if and only if* its (full) scheduling mask is exactly 1. This allows debug-(un)locking of threads to be done transparently.