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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-02-06 17:04:26 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-10 09:05:42 +0100
commitbb3bac2ca9a3a5b7fa601781adf70167a0449d75 (patch)
tree9484f2817c8556b07e27bcac45eb53549fed8a2f /drivers/hwmon/smsc47m192.c
parentsched/autogroup: Rename auto_group.[ch] to autogroup.[ch] (diff)
downloadlinux-bb3bac2ca9a3a5b7fa601781adf70167a0449d75.tar.xz
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sched/core: Remove unlikely() annotation from sched_move_task()
The check for 'running' in sched_move_task() has an unlikely() around it. That is, it is unlikely that the task being moved is running. That use to be true. But with a couple of recent updates, it is now likely that the task will be running. The first change came from ea86cb4b7621 ("sched/cgroup: Fix cpu_cgroup_fork() handling") that moved around the use case of sched_move_task() in do_fork() where the call is now done after the task is woken (hence it is running). The second change came from 8e5bfa8c1f84 ("sched/autogroup: Do not use autogroup->tg in zombie threads") where sched_move_task() is called by the exit path, by the task that is exiting. Hence it too is running. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vincent Guittot <vincent.guittot@linaro.org> Link: http://lkml.kernel.org/r/20170206110426.27ca6426@gandalf.local.home Signed-off-by: Ingo Molnar <mingo@kernel.org>
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