Preeti U Murthy d6119a65a9 sched/idle: Add missing checks to the exit condition of cpu_idle_poll() ... cpu_idle_poll() is entered into when either the cpu_idle_force_poll is set or tick_check_broadcast_expired() returns true. The exit condition from cpu_idle_poll() is tif_need_resched(). However this does not take into account scenarios where cpu_idle_force_poll changes or tick_check_broadcast_expired() returns false, without setting the resched flag. So a cpu will be caught in cpu_idle_poll() needlessly, thereby wasting power. Add an explicit check on cpu_idle_force_poll and tick_check_broadcast_expired() to the exit condition of cpu_idle_poll() to avoid this. Change-Id: I9e48347dba41ee9980afa00e0fe5be0fdddb5e6e Signed-off-by: Preeti U Murthy <preeti@linux.vnet.ibm.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20150121105655.15279.59626.stgit@preeti.in.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> [pkondeti@codeaurora.org: Resolved merge conflicts] Git-commit: ff6f2d29bd31cdfa1ac494a8b26d2af8ba887d59 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git		2019-07-27 21:50:45 +02:00
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Makefile	…
idle.c	sched/idle: Add missing checks to the exit condition of cpu_idle_poll()	2019-07-27 21:50:45 +02:00