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authorPeter Zijlstra <peterz@infradead.org>2016-10-03 16:35:32 +0200
committerChris Redpath <chris.redpath@arm.com>2017-10-27 13:30:33 +0100
commitbab39eb879251debe02e573f5453bd93ad5350bd (patch)
treeca4611c884fd324374d89f3069a763642ddc10b3 /tools/perf/scripts/python
parentbea1b621d952079c4cebc1178ea580c290d0446e (diff)
UPSTREAM: sched/core: Add missing update_rq_clock() call for task_hot()
Add the update_rq_clock() call at the top of the callstack instead of at the bottom where we find it missing, this to aid later effort to minimize the number of update_rq_lock() calls. WARNING: CPU: 30 PID: 194 at ../kernel/sched/sched.h:797 assert_clock_updated() rq->clock_update_flags < RQCF_ACT_SKIP Call Trace: dump_stack() __warn() warn_slowpath_fmt() assert_clock_updated.isra.63.part.64() can_migrate_task() load_balance() pick_next_task_fair() __schedule() schedule() worker_thread() kthread() Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> (cherry picked from commit 3bed5e2166a5e433bf62162f3cd3c5174d335934) Change-Id: Ief5070dcce486535334dcb739ee16b989ea9df42 Signed-off-by: Brendan Jackman <brendan.jackman@arm.com> Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Diffstat (limited to 'tools/perf/scripts/python')
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