sched: update comment for move_task_off_dead_cpu
commit957ad0166e9f76a8561dafa5e14ef5bd3f5e9a3b
authorVegard Nossum <vegard.nossum@gmail.com>
Fri, 21 Nov 2008 00:30:36 +0000 (21 01:30 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 21 Nov 2008 07:57:28 +0000 (21 08:57 +0100)
tree551a3e47438f88769f0fb2425ad4ad4b4df557cf
parentfc02e90c34bacd5d7bc77b832c65a8f06e1bd60e
sched: update comment for move_task_off_dead_cpu

Impact: cleanup

This commit:

commit f7b4cddcc5aca03e80e357360c9424dfba5056c2
Author: Oleg Nesterov <oleg@tv-sign.ru>
Date:   Tue Oct 16 23:30:56 2007 -0700

    do CPU_DEAD migrating under read_lock(tasklist) instead of write_lock_irq(ta

    Currently move_task_off_dead_cpu() is called under
    write_lock_irq(tasklist).  This means it can't use task_lock() which is
    needed to improve migrating to take task's ->cpuset into account.

    Change the code to call move_task_off_dead_cpu() with irqs enabled, and
    change migrate_live_tasks() to use read_lock(tasklist).

...forgot to update the comment in front of move_task_off_dead_cpu.

Reference: http://lkml.org/lkml/2008/6/23/135

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c