Commit-ID: 28f5318167adf23b16c844b9c2253f355cb21796 Gitweb: http://git.kernel.org/tip/28f5318167adf23b16c844b9c2253f355cb21796 Author: Vaidyanathan Srinivasan <svaidy@xxxxxxxxxxxxxxxxxx> AuthorDate: Mon, 8 Feb 2010 15:35:55 +0530 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Tue, 16 Feb 2010 15:13:59 +0100 sched: Fix sched_mv_power_savings for !SMT Fix for sched_mc_powersavigs for pre-Nehalem platforms. Child sched domain should clear SD_PREFER_SIBLING if parent will have SD_POWERSAVINGS_BALANCE because they are contradicting. Sets the flags correctly based on sched_mc_power_savings. Signed-off-by: Vaidyanathan Srinivasan <svaidy@xxxxxxxxxxxxxxxxxx> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> LKML-Reference: <20100208100555.GD2931@xxxxxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxx [2.6.32.x] Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- include/linux/sched.h | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 78efe7c..1f5fa53 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -878,7 +878,10 @@ static inline int sd_balance_for_mc_power(void) if (sched_smt_power_savings) return SD_POWERSAVINGS_BALANCE; - return SD_PREFER_SIBLING; + if (!sched_mc_power_savings) + return SD_PREFER_SIBLING; + + return 0; } static inline int sd_balance_for_package_power(void) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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