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authorVegard Nossum <vegard.nossum@gmail.com>2008-11-21 01:30:36 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-21 08:57:28 +0100
commit957ad0166e9f76a8561dafa5e14ef5bd3f5e9a3b (patch)
tree551a3e47438f88769f0fb2425ad4ad4b4df557cf /arch/x86/Kconfig
parentfc02e90c34bacd5d7bc77b832c65a8f06e1bd60e (diff)
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>
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